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Raspi2-3_GenImage
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r52:1f5000be9fe2 Fusion
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1 # For more options and information see
2 # http://www.raspberrypi.org/documentation/configuration/config-txt.md
3 # Some settings may impact device functionality. See link above for details
4
5 # uncomment if you get no picture on HDMI for a default "safe" mode
6 #hdmi_safe=1
7
8 # uncomment this if your display has a black border of unused pixels visible
9 # and your display can output without overscan
10 #disable_overscan=1
11
12 # uncomment the following to adjust overscan. Use positive numbers if console
13 # goes off screen, and negative if there is too much border
14 #overscan_left=16
15 #overscan_right=16
16 #overscan_top=16
17 #overscan_bottom=16
18
19 # uncomment to force a console size. By default it will be display's size minus
20 # overscan.
21 #framebuffer_width=1280
22 #framebuffer_height=720
23
24 # uncomment if hdmi display is not detected and composite is being output
25 #hdmi_force_hotplug=1
26
27 # uncomment to force a specific HDMI mode (this will force VGA)
28 #hdmi_group=1
29 #hdmi_mode=1
30
31 # uncomment to force a HDMI mode rather than DVI. This can make audio work in
32 # DMT (computer monitor) modes
33 #hdmi_drive=2
34
35 # uncomment to increase signal to HDMI, if you have interference, blanking, or
36 # no display
37 #config_hdmi_boost=4
38
39 # uncomment for composite PAL
40 #sdtv_mode=2
41
42 # uncomment to overclock the arm. 700 MHz is the default.
43 #arm_freq=800
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1 #!/bin/sh -e
2 logger -t "rc.firstboot" "Starting first boot actions"
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1 logger -t "rc.firstboot" "Generating SSH host keys"
2 rm -f /etc/ssh/ssh_host_*
3 ssh-keygen -q -t rsa -N "" -f /etc/ssh/ssh_host_rsa_key
4 ssh-keygen -q -t dsa -N "" -f /etc/ssh/ssh_host_dsa_key
5 ssh-keygen -q -t ecdsa -N "" -f /etc/ssh/ssh_host_ecdsa_key
6 ssh-keygen -q -t ed25519 -N "" -f /etc/ssh/ssh_host_ed25519_key
7
8 systemctl restart sshd
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1 logger -t "rc.firstboot" "Expanding root"
2 ROOT_PART=$(mount | sed -n 's|^/dev/\(.*\) on / .*|\1|p')
3 PART_NUM=$(echo ${ROOT_PART} | grep -o '[1-9][0-9]*$')
4 case "${ROOT_PART}" in
5 mmcblk0*) ROOT_DEV=mmcblk0 ;;
6 sda*) ROOT_DEV=sda ;;
7 esac
8 if [ "$PART_NUM" = "$ROOT_PART" ]; then
9 logger -t "rc.firstboot" "$ROOT_PART is not an SD card. Don't know how to expand"
10 return 0
11 fi
12
13 # NOTE: the NOOBS partition layout confuses parted. For now, let's only
14 # agree to work with a sufficiently simple partition layout
15 if [ "$PART_NUM" -gt 2 ]; then
16 logger -t "rc.firstboot" "Your partition layout is not currently supported by this tool."
17 return 0
18 fi
19 LAST_PART_NUM=$(parted /dev/${ROOT_DEV} -ms unit s p | tail -n 1 | cut -f 1 -d:)
20 if [ $LAST_PART_NUM -ne $PART_NUM ]; then
21 logger -t "rc.firstboot" "$ROOT_PART is not the last partition. Don't know how to expand"
22 return 0
23 fi
24
25 # Get the starting offset of the root partition
26 PART_START=$(parted /dev/${ROOT_DEV} -ms unit s p | grep "^${PART_NUM}" | cut -f 2 -d: | sed 's/[^0-9]//g')
27 [ "$PART_START" ] || return 1
28
29 # Get the possible last sector for the root partition
30 PART_LAST=$(fdisk -l /dev/${ROOT_DEV} | grep '^Disk.*sectors' | awk '{ print $7 - 1 }')
31 [ "$PART_LAST" ] || return 1
32
33 # Return value will likely be error for fdisk as it fails to reload the
34 # partition table because the root fs is mounted
35 ### Since rc.local is run with "sh -e", let's add "|| true" to prevent premature exit
36 fdisk /dev/${ROOT_DEV} <<EOF2 || true
37 p
38 d
39 $PART_NUM
40 n
41 p
42 $PART_NUM
43 $PART_START
44 $PART_LAST
45 p
46 w
47 EOF2
48
49 # Reload the partition table, resize root filesystem then remove resizing code from this file
50 partprobe &&
51 resize2fs /dev/${ROOT_PART} &&
52 logger -t "rc.firstboot" "Root partition successfuly resized."
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1 logger -t "rc.firstboot" "First boot actions finished"
2 rm -f /etc/rc.firstboot
3 sed -i '/.*rc.firstboot/d' /etc/rc.local
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1 /dev/mmcblk0p2 / ext4 noatime,nodiratime,errors=remount-ro,discard,data=writeback,commit=100 0 1
2 /dev/mmcblk0p1 /boot/firmware vfat defaults,noatime,nodiratime 0 2
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1 #!/bin/sh
2 ip6tables -F
3 ip6tables -X
4 ip6tables -Z
5
6 for table in $(</proc/net/ip6_tables_names)
7 do
8 ip6tables -t \$table -F
9 ip6tables -t \$table -X
10 ip6tables -t \$table -Z
11 done
12
13 ip6tables -P INPUT ACCEPT
14 ip6tables -P OUTPUT ACCEPT
15 ip6tables -P FORWARD ACCEPT
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1 #!/bin/sh
2 iptables -F
3 iptables -X
4 iptables -t nat -F
5 iptables -t nat -X
6 iptables -t mangle -F
7 iptables -t mangle -X
8 iptables -P INPUT ACCEPT
9 iptables -P FORWARD ACCEPT
10 iptables -P OUTPUT ACCEPT
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1 *filter
2 :INPUT DROP [0:0]
3 :FORWARD DROP [0:0]
4 :OUTPUT ACCEPT [0:0]
5 :TCP - [0:0]
6 :UDP - [0:0]
7 :SSH - [0:0]
8
9 # Drop packets with RH0 headers
10 -A INPUT -m rt --rt-type 0 -j DROP
11 -A OUTPUT -m rt --rt-type 0 -j DROP
12 -A FORWARD -m rt --rt-type 0 -j DROP
13
14 # Rate limit ping requests
15 -A INPUT -p icmpv6 --icmpv6-type echo-request -m limit --limit 30/min --limit-burst 8 -j ACCEPT
16 -A INPUT -p icmpv6 --icmpv6-type echo-request -j DROP
17
18 # Accept established connections
19 -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
20
21 # Accept all traffic on loopback interface
22 -A INPUT -i lo -j ACCEPT
23
24 # Drop packets declared invalid
25 -A INPUT -m conntrack --ctstate INVALID -j DROP
26
27 # SSH rate limiting
28 -A INPUT -p tcp --dport ssh -m conntrack --ctstate NEW -j SSH
29 -A SSH -m recent --name sshbf --rttl --rcheck --hitcount 3 --seconds 10 -j DROP
30 -A SSH -m recent --name sshbf --rttl --rcheck --hitcount 20 --seconds 1800 -j DROP
31 -A SSH -m recent --name sshbf --set -j ACCEPT
32
33 # Send TCP and UDP connections to their respective rules chain
34 -A INPUT -p udp -m conntrack --ctstate NEW -j UDP
35 -A INPUT -p tcp --syn -m conntrack --ctstate NEW -j TCP
36
37 # Reject dropped packets with a RFC compliant responce
38 -A INPUT -p udp -j REJECT --reject-with icmp6-adm-prohibited
39 -A INPUT -p tcp -j REJECT --reject-with icmp6-adm-prohibited
40 -A INPUT -j REJECT --reject-with icmp6-adm-prohibited
41
42 ## TCP PORT RULES
43 # -A TCP -p tcp -j LOG
44
45 ## UDP PORT RULES
46 # -A UDP -p udp -j LOG
47
48 COMMIT
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1 [Unit]
2 Description=Packet Filtering Framework
3 DefaultDependencies=no
4 After=systemd-sysctl.service
5 Before=sysinit.target
6
7 [Service]
8 Type=oneshot
9 ExecStart=/sbin/ip6tables-restore /etc/iptables/ip6tables.rules
10 ExecReload=/sbin/ip6tables-restore /etc/iptables/ip6tables.rules
11 ExecStop=/etc/iptables/flush-ip6tables.sh
12 RemainAfterExit=yes
13
14 [Install]
15 WantedBy=multi-user.target
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1 *filter
2 :INPUT DROP [0:0]
3 :FORWARD DROP [0:0]
4 :OUTPUT ACCEPT [0:0]
5 :TCP - [0:0]
6 :UDP - [0:0]
7 :SSH - [0:0]
8
9 # Rate limit ping requests
10 -A INPUT -p icmp --icmp-type echo-request -m limit --limit 30/min --limit-burst 8 -j ACCEPT
11 -A INPUT -p icmp --icmp-type echo-request -j DROP
12
13 # Accept established connections
14 -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
15
16 # Accept all traffic on loopback interface
17 -A INPUT -i lo -j ACCEPT
18
19 # Drop packets declared invalid
20 -A INPUT -m conntrack --ctstate INVALID -j DROP
21
22 # SSH rate limiting
23 -A INPUT -p tcp --dport ssh -m conntrack --ctstate NEW -j SSH
24 -A SSH -m recent --name sshbf --rttl --rcheck --hitcount 3 --seconds 10 -j DROP
25 -A SSH -m recent --name sshbf --rttl --rcheck --hitcount 20 --seconds 1800 -j DROP
26 -A SSH -m recent --name sshbf --set -j ACCEPT
27
28 # Send TCP and UDP connections to their respective rules chain
29 -A INPUT -p udp -m conntrack --ctstate NEW -j UDP
30 -A INPUT -p tcp --syn -m conntrack --ctstate NEW -j TCP
31
32 # Reject dropped packets with a RFC compliant responce
33 -A INPUT -p udp -j REJECT --reject-with icmp-port-unreachable
34 -A INPUT -p tcp -j REJECT --reject-with tcp-rst
35 -A INPUT -j REJECT --reject-with icmp-proto-unreachable
36
37 ## TCP PORT RULES
38 # -A TCP -p tcp -j LOG
39
40 ## UDP PORT RULES
41 # -A UDP -p udp -j LOG
42
43 COMMIT
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1 [Unit]
2 Description=Packet Filtering Framework
3 DefaultDependencies=no
4 After=systemd-sysctl.service
5 Before=sysinit.target
6
7 [Service]
8 Type=oneshot
9 ExecStart=/sbin/iptables-restore /etc/iptables/iptables.rules
10 ExecReload=/sbin/iptables-restore /etc/iptables/iptables.rules
11 ExecStop=/etc/iptables/flush-iptables.sh
12 RemainAfterExit=yes
13
14 [Install]
15 WantedBy=multi-user.target
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1 blacklist snd_soc_core
2 blacklist snd_pcm
3 blacklist snd_pcm_dmaengine
4 blacklist snd_timer
5 blacklist snd_compress
6 blacklist snd_soc_pcm512x_i2c
7 blacklist snd_soc_pcm512x
8 blacklist snd_soc_tas5713
9 blacklist snd_soc_wm8804
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1 # Avoid swapping and increase cache sizes
2 vm.swappiness=1
3 vm.dirty_background_ratio=20
4 vm.dirty_ratio=40
5 vm.dirty_writeback_centisecs=500
6 vm.dirty_expire_centisecs=6000
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1 # Enable network stack hardening
2 net.ipv4.tcp_timestamps=0
3 net.ipv4.tcp_syncookies=1
4 net.ipv4.conf.all.rp_filter=1
5 net.ipv4.conf.all.accept_redirects=0
6 net.ipv4.conf.all.send_redirects=0
7 net.ipv4.conf.all.accept_source_route=0
8 net.ipv4.conf.default.rp_filter=1
9 net.ipv4.conf.default.accept_redirects=0
10 net.ipv4.conf.default.send_redirects=0
11 net.ipv4.conf.default.accept_source_route=0
12 net.ipv4.conf.lo.accept_redirects=0
13 net.ipv4.conf.lo.send_redirects=0
14 net.ipv4.conf.lo.accept_source_route=0
15 net.ipv4.conf.eth0.accept_redirects=0
16 net.ipv4.conf.eth0.send_redirects=0
17 net.ipv4.conf.eth0.accept_source_route=0
18 net.ipv4.icmp_echo_ignore_broadcasts=1
19 net.ipv4.icmp_ignore_bogus_error_responses=1
20
21 net.ipv6.conf.all.accept_redirects=0
22 net.ipv6.conf.all.accept_source_route=0
23 net.ipv6.conf.all.router_solicitations=0
24 net.ipv6.conf.all.accept_ra_rtr_pref=0
25 net.ipv6.conf.all.accept_ra_pinfo=0
26 net.ipv6.conf.all.accept_ra_defrtr=0
27 net.ipv6.conf.all.autoconf=0
28 net.ipv6.conf.all.dad_transmits=0
29 net.ipv6.conf.all.max_addresses=1
30
31 net.ipv6.conf.default.accept_redirects=0
32 net.ipv6.conf.default.accept_source_route=0
33 net.ipv6.conf.default.router_solicitations=0
34 net.ipv6.conf.default.accept_ra_rtr_pref=0
35 net.ipv6.conf.default.accept_ra_pinfo=0
36 net.ipv6.conf.default.accept_ra_defrtr=0
37 net.ipv6.conf.default.autoconf=0
38 net.ipv6.conf.default.dad_transmits=0
39 net.ipv6.conf.default.max_addresses=1
40
41 net.ipv6.conf.lo.accept_redirects=0
42 net.ipv6.conf.lo.accept_source_route=0
43 net.ipv6.conf.lo.router_solicitations=0
44 net.ipv6.conf.lo.accept_ra_rtr_pref=0
45 net.ipv6.conf.lo.accept_ra_pinfo=0
46 net.ipv6.conf.lo.accept_ra_defrtr=0
47 net.ipv6.conf.lo.autoconf=0
48 net.ipv6.conf.lo.dad_transmits=0
49 net.ipv6.conf.lo.max_addresses=1
50
51 net.ipv6.conf.eth0.accept_redirects=0
52 net.ipv6.conf.eth0.accept_source_route=0
53 net.ipv6.conf.eth0.router_solicitations=0
54 net.ipv6.conf.eth0.accept_ra_rtr_pref=0
55 net.ipv6.conf.eth0.accept_ra_pinfo=0
56 net.ipv6.conf.eth0.accept_ra_defrtr=0
57 net.ipv6.conf.eth0.autoconf=0
58 net.ipv6.conf.eth0.dad_transmits=0
59 net.ipv6.conf.eth0.max_addresses=1
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1 1 # rpi2-gen-image
2 2 ## Introduction
3 3 `rpi2-gen-image.sh` is an advanced Debian Linux bootstrapping shell script for generating Debian OS images for the Raspberry 2 (RPi2) computer. The script at this time only supports the bootstrapping of the current stable Debian 8 "jessie" release.
4 4
5 5 ## Build dependencies
6 6 The following list of Debian packages must be installed on the build system because they are essentially required for the bootstrapping process. The script will check if all required packages are installed and missing packages will be installed automatically if confirmed by the user.
7 7
8 8 ```debootstrap debian-archive-keyring qemu-user-static dosfstools rsync bmap-tools whois git-core```
9 9
10 10 ## Command-line parameters
11 11 The script accepts certain command-line parameters to enable or disable specific OS features, services and configuration settings. These parameters are passed to the `rpi2-gen-image.sh` script via (simple) shell-variables. Unlike environment shell-variables (simple) shell-variables are defined at the beginning of the command-line call of the `rpi2-gen-image.sh` script.
12 12
13 13 #####Command-line examples:
14 14 ```shell
15 15 ENABLE_UBOOT=true ./rpi2-gen-image.sh
16 16 ENABLE_CONSOLE=false ENABLE_IPV6=false ./rpi2-gen-image.sh
17 17 ENABLE_WM=xfce4 ENABLE_FBTURBO=true ENABLE_MINBASE=true ./rpi2-gen-image.sh
18 18 ENABLE_HARDNET=true ENABLE_IPTABLES=true /rpi2-gen-image.sh
19 19 APT_SERVER=ftp.de.debian.org APT_PROXY="http://127.0.0.1:3142/" ./rpi2-gen-image.sh
20 20 ENABLE_MINBASE=true ./rpi2-gen-image.sh
21 21 ```
22 22
23 23 #### APT settings:
24 24 ##### `APT_SERVER`="ftp.debian.org"
25 25 Set Debian packages server address. Choose a server from the list of Debian worldwide [mirror sites](https://www.debian.org/mirror/list). Using a nearby server will probably speed-up all required downloads within the bootstrapping process.
26 26
27 27 ##### `APT_PROXY`=""
28 28 Set Proxy server address. Using a local Proxy-Cache like `apt-cacher-ng` will speed-up the bootstrapping process because all required Debian packages will only be downloaded from the Debian mirror site once.
29 29
30 30 ##### `APT_INCLUDES`=""
31 31 A comma seperated list of additional packages to be installed during bootstrapping.
32 32
33 33 #### General system settings:
34 34 ##### `HOSTNAME`="rpi2-jessie"
35 35 Set system host name. It's recommended that the host name is unique in the corresponding subnet.
36 36
37 37 ##### `PASSWORD`="raspberry"
38 38 Set system `root` password. The same password is used for the created user `pi`. It's **STRONGLY** recommended that you choose a custom password.
39 39
40 40 ##### `DEFLOCAL`="en_US.UTF-8"
41 41 Set default system locale. This setting can also be changed inside the running OS using the `dpkg-reconfigure locales` command. The script variant `minbase` (ENABLE_MINBASE=true) doesn't install `locales`.
42 42
43 43 ##### `TIMEZONE`="Europe/Berlin"
44 44 Set default system timezone. All available timezones can be found in the `/usr/share/zoneinfo/` directory. This setting can also be changed inside the running OS using the `dpkg-reconfigure tzdata` command.
45 45
46 ##### `EXPANDROOT`=true
47 Expand the root partition and filesystem automatically on first boot.
48
46 49 #### Keyboard settings:
47 50 These options are used to configure keyboard layout in `/etc/default/keyboard` for console and Xorg. These settings can also be changed inside the running OS using the `dpkg-reconfigure keyboard-configuration` command.
48 51 ##### `XKBMODEL`=""
49 52 ##### `XKBLAYOUT`=""
50 53 ##### `XKBVARIANT`=""
51 54 ##### `XKBOPTIONS`=""
52 55
53 56 #### Networking settings
54 57 These settings are used to set up networking configuration in `/etc/systemd/network/eth.network`.
55 58
56 59 #####`ENABLE_DHCP`=true
57 60 Set the system to use DHCP. When set to "true", the following `NET_*` settings (used for static configuration) are ignored.
58 61
59 62 #####`NET_ADDRESS`=""
60 63 Set a static IPv4 or IPv6 address and its prefix, separated by "/", eg. "192.169.0.3/24".
61 64
62 65 #####`NET_GATEWAY`=""
63 66 Set the IP address for the default gateway.
64 67
65 68 #####`NET_DNS_1`=""
66 69 Set the IP address for the first DNS server.
67 70
68 71 #####`NET_DNS_2`=""
69 72 Set the IP address for the second DNS server.
70 73
71 74 #####`NET_DNS_DOMAINS`=""
72 75 Set the default DNS search domains to use for non fully qualified host names.
73 76
74 77 #####`NET_NTP_1`=""
75 78 Set the IP address for the first NTP server.
76 79
77 80 #####`NET_NTP_2`=""
78 81 Set the IP address for the second NTP server.
79 82
80 83 #### Basic system features:
81 84 ##### `ENABLE_CONSOLE`=true
82 85 Enable serial console interface. Recommended if no monitor or keyboard is connected to the RPi2. In case of problems fe. if the network (auto) configuration failed - the serial console can be used to access the system.
83 86
84 87 ##### `ENABLE_IPV6`=true
85 88 Enable IPv6 support. The network interface configuration is managed via systemd-networkd.
86 89
87 90 ##### `ENABLE_SSHD`=true
88 91 Install and enable OpenSSH service. The default configuration of the service doesn't allow `root` to login. Please use the user `pi` instead and `su -` or `sudo` to execute commands as root.
89 92
93 ##### `ENABLE_RSYSLOG`=true
94 If set to false, disable and uninstall rsyslog (so logs will be available only
95 in journal files)
96
90 97 ##### `ENABLE_SOUND`=true
91 98 Enable sound hardware and install Advanced Linux Sound Architecture.
92 99
93 100 ##### `ENABLE_HWRANDOM`=true
94 101 Enable Hardware Random Number Generator. Strong random numbers are important for most network based communications that use encryption. It's recommended to be enabled.
95 102
96 103 ##### `ENABLE_MINGPU`=false
97 104 Minimize the amount of shared memory reserved for the GPU. It doesn't seem to be possible to fully disable the GPU.
98 105
99 106 ##### `ENABLE_DBUS`=true
100 107 Install and enable D-Bus message bus. Please note that systemd should work without D-bus but it's recommended to be enabled.
101 108
102 109 ##### `ENABLE_XORG`=false
103 110 Install Xorg open-source X Window System.
104 111
105 112 ##### `ENABLE_WM`=""
106 113 Install a user defined window manager for the X Window System. To make sure all X related package dependencies are getting installed `ENABLE_XORG` will automatically get enabled if `ENABLE_WM` is used. The `rpi2-gen-image.sh` script has been tested with the following list of window managers: `blackbox`, `openbox`, `fluxbox`, `jwm`, `dwm`, `xfce4`, `awesome`.
107 114
108 115 #### Advanced sytem features:
109 116 ##### `ENABLE_MINBASE`=false
110 117 Use debootstrap script variant `minbase` which only includes essential packages and apt. This will reduce the disk usage by about 65 MB.
111 118
112 119 ##### `ENABLE_UBOOT`=false
113 120 Replace default RPi2 second stage bootloader (bootcode.bin) with U-Boot bootloader. U-Boot can boot images via the network using the BOOTP/TFTP protocol.
114 121
115 122 ##### `ENABLE_FBTURBO`=false
116 123 Install and enable the hardware accelerated Xorg video driver `fbturbo`. Please note that this driver is currently limited to hardware accelerated window moving and scrolling.
117 124
118 125 ##### `ENABLE_IPTABLES`=false
119 126 Enable iptables IPv4/IPv6 firewall. Simplified ruleset: Allow all outgoing connections. Block all incoming connections except to OpenSSH service.
120 127
128 ##### `ENABLE_USER`=true
129 Create pi user with password raspberry
130
131 ##### `ENABLE_ROOT`=true
132 Set root user password so root login will be enabled
133
134 ##### `ENABLE_ROOT_SSH`=true
135 Enable password root login via SSH. May be a security risk with default
136 password, use only in trusted environments.
137
121 138 ##### `ENABLE_HARDNET`=false
122 139 Enable IPv4/IPv6 network stack hardening settings.
123 140
124 141 ## Logging of the bootstrapping process
125 142 All information related to the bootstrapping process and the commands executed by the `rpi2-gen-image.sh` script can easily be saved into a logfile. The common shell command `script` can be used for this purpose:
126 143
127 144 ```shell
128 145 script -c 'APT_SERVER=ftp.de.debian.org ./rpi2-gen-image.sh' ./build.log
129 146 ```
130 147
131 148 ## Flashing the image file
132 149 After the image file was successfully created by the `rpi2-gen-image.sh` script it can be copied to the microSD card that will be used by the RPi2 computer. This can be performed by using the tools `bmaptool` or `dd`. Using `bmaptool` will probably speed-up the copy process because `bmaptool` copies more wisely than `dd`.
133 150
134 151 #####Flashing examples:
135 152 ```shell
136 153 bmaptool copy ./images/jessie/2015-12-13-debian-jessie.img /dev/mmcblk0
137 154 dd bs=4M if=./images/jessie/2015-12-13-debian-jessie.img of=/dev/mmcblk0
138 155 ```
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1 1 #!/bin/sh
2 2
3 3 ########################################################################
4 4 # rpi2-gen-image.sh ver2a 12/2015
5 5 #
6 6 # Advanced debian "jessie" bootstrap script for RPi2
7 7 #
8 8 # This program is free software; you can redistribute it and/or
9 9 # modify it under the terms of the GNU General Public License
10 10 # as published by the Free Software Foundation; either version 2
11 11 # of the License, or (at your option) any later version.
12 12 #
13 13 # some parts based on rpi2-build-image:
14 14 # Copyright (C) 2015 Ryan Finnie <ryan@finnie.org>
15 15 # Copyright (C) 2015 Luca Falavigna <dktrkranz@debian.org>
16 16 ########################################################################
17 17
18 18 # Clean up all temporary mount points
19 19 cleanup (){
20 20 set +x
21 21 set +e
22 22 echo "removing temporary mount points ..."
23 23 umount -l $R/proc 2> /dev/null
24 24 umount -l $R/sys 2> /dev/null
25 25 umount -l $R/dev/pts 2> /dev/null
26 26 umount "$BUILDDIR/mount/boot/firmware" 2> /dev/null
27 27 umount "$BUILDDIR/mount" 2> /dev/null
28 28 losetup -d "$EXT4_LOOP" 2> /dev/null
29 29 losetup -d "$VFAT_LOOP" 2> /dev/null
30 30 trap - 0 1 2 3 6
31 31 }
32 32
33 # Exec command in chroot
34 chroot_exec() {
35 LANG=C LC_ALL=C chroot $R $*
36 }
37
33 38 set -e
34 39 set -x
35 40
36 41 # Debian release
37 42 RELEASE=${RELEASE:=jessie}
43 KERNEL=${KERNEL:=3.18.0-trunk-rpi2}
38 44
39 45 # Build settings
40 46 BASEDIR=./images/${RELEASE}
41 47 BUILDDIR=${BASEDIR}/build
42 48
43 49 # General settings
44 50 HOSTNAME=${HOSTNAME:=rpi2-${RELEASE}}
45 51 PASSWORD=${PASSWORD:=raspberry}
46 52 DEFLOCAL=${DEFLOCAL:="en_US.UTF-8"}
47 53 TIMEZONE=${TIMEZONE:="Europe/Berlin"}
48 54 XKBMODEL=${XKBMODEL:=""}
49 55 XKBLAYOUT=${XKBLAYOUT:=""}
50 56 XKBVARIANT=${XKBVARIANT:=""}
51 57 XKBOPTIONS=${XKBOPTIONS:=""}
58 EXPANDROOT=${EXPANDROOT:=true}
52 59
53 60 # Network settings
54 61 ENABLE_DHCP=${ENABLE_DHCP:=true}
55 62 # NET_* settings are ignored when ENABLE_DHCP=true
56 63 # NET_ADDRESS is an IPv4 or IPv6 address and its prefix, separated by "/"
57 64 NET_ADDRESS=${NET_ADDRESS:=""}
58 65 NET_GATEWAY=${NET_GATEWAY:=""}
59 66 NET_DNS_1=${NET_DNS_1:=""}
60 67 NET_DNS_2=${NET_DNS_2:=""}
61 68 NET_DNS_DOMAINS=${NET_DNS_DOMAINS:=""}
62 69 NET_NTP_1=${NET_NTP_1:=""}
63 70 NET_NTP_2=${NET_NTP_2:=""}
64 71
65 72 # APT settings
66 73 APT_PROXY=${APT_PROXY:=""}
67 74 APT_SERVER=${APT_SERVER:="ftp.debian.org"}
68 75
69 76 # Feature settings
70 77 ENABLE_CONSOLE=${ENABLE_CONSOLE:=true}
71 78 ENABLE_IPV6=${ENABLE_IPV6:=true}
72 79 ENABLE_SSHD=${ENABLE_SSHD:=true}
73 80 ENABLE_SOUND=${ENABLE_SOUND:=true}
74 81 ENABLE_DBUS=${ENABLE_DBUS:=true}
75 82 ENABLE_HWRANDOM=${ENABLE_HWRANDOM:=true}
76 83 ENABLE_MINGPU=${ENABLE_MINGPU:=false}
77 84 ENABLE_XORG=${ENABLE_XORG:=false}
78 85 ENABLE_WM=${ENABLE_WM:=""}
86 ENABLE_RSYSLOG=${ENABLE_RSYSLOG:=true}
87 ENABLE_USER=${ENABLE_USER:=true}
88 ENABLE_ROOT=${ENABLE_ROOT:=false}
89 ENABLE_ROOT_SSH=${ENABLE_ROOT_SSH:=false}
79 90
80 91 # Advanced settings
81 92 ENABLE_MINBASE=${ENABLE_MINBASE:=false}
82 93 ENABLE_UBOOT=${ENABLE_UBOOT:=false}
83 94 ENABLE_FBTURBO=${ENABLE_FBTURBO:=false}
84 95 ENABLE_HARDNET=${ENABLE_HARDNET:=false}
85 96 ENABLE_IPTABLES=${ENABLE_IPTABLES:=false}
86 97
87 98 # Image chroot path
88 99 R=${BUILDDIR}/chroot
89 100
90 101 # Packages required for bootstrapping
91 102 REQUIRED_PACKAGES="debootstrap debian-archive-keyring qemu-user-static binfmt-support dosfstools rsync bmap-tools whois git-core"
92 103
93 104 # Missing packages that need to be installed
94 105 MISSING_PACKAGES=""
95 106
96 107 # Packages required in the chroot build environment
97 108 APT_INCLUDES=${APT_INCLUDES:=""}
98 109 APT_INCLUDES="${APT_INCLUDES},apt-transport-https,ca-certificates,debian-archive-keyring,dialog,sudo"
99 110
100 111 set +x
101 112
102 113 # Are we running as root?
103 114 if [ "$(id -u)" -ne "0" ] ; then
104 115 echo "this script must be executed with root privileges"
105 116 exit 1
106 117 fi
107 118
108 119 # Check if all required packages are installed
109 120 for package in $REQUIRED_PACKAGES ; do
110 121 if [ "`dpkg-query -W -f='${Status}' $package`" != "install ok installed" ] ; then
111 122 MISSING_PACKAGES="$MISSING_PACKAGES $package"
112 123 fi
113 124 done
114 125
115 126 # Ask if missing packages should get installed right now
116 127 if [ -n "$MISSING_PACKAGES" ] ; then
117 128 echo "the following packages needed by this script are not installed:"
118 129 echo "$MISSING_PACKAGES"
119 130
120 131 echo -n "\ndo you want to install the missing packages right now? [y/n] "
121 132 read confirm
122 133 if [ "$confirm" != "y" ] ; then
123 134 exit 1
124 135 fi
125 136 fi
126 137
127 138 # Make sure all required packages are installed
128 139 apt-get -qq -y install ${REQUIRED_PACKAGES}
129 140
130 141 # Don't clobber an old build
131 142 if [ -e "$BUILDDIR" ]; then
132 143 echo "directory $BUILDDIR already exists, not proceeding"
133 144 exit 1
134 145 fi
135 146
136 147 set -x
137 148
138 149 # Call "cleanup" function on various signals and errors
139 150 trap cleanup 0 1 2 3 6
140 151
141 152 # Set up chroot directory
142 153 mkdir -p $R
143 154
144 155 # Add required packages for the minbase installation
145 156 if [ "$ENABLE_MINBASE" = true ] ; then
146 157 APT_INCLUDES="${APT_INCLUDES},vim-tiny,netbase,net-tools"
147 158 else
148 159 APT_INCLUDES="${APT_INCLUDES},locales,keyboard-configuration,console-setup"
149 160 fi
150 161
162 # Add parted package, required to get partprobe utility
163 if [ "$EXPANDROOT" = true ] ; then
164 APT_INCLUDES="${APT_INCLUDES},parted"
165 fi
166
151 167 # Add dbus package, recommended if using systemd
152 168 if [ "$ENABLE_DBUS" = true ] ; then
153 169 APT_INCLUDES="${APT_INCLUDES},dbus"
154 170 fi
155 171
156 172 # Add iptables IPv4/IPv6 package
157 173 if [ "$ENABLE_IPTABLES" = true ] ; then
158 174 APT_INCLUDES="${APT_INCLUDES},iptables"
159 175 fi
160 176
161 177 # Add openssh server package
162 178 if [ "$ENABLE_SSHD" = true ] ; then
163 179 APT_INCLUDES="${APT_INCLUDES},openssh-server"
164 180 fi
165 181
166 182 # Add alsa-utils package
167 183 if [ "$ENABLE_SOUND" = true ] ; then
168 184 APT_INCLUDES="${APT_INCLUDES},alsa-utils"
169 185 fi
170 186
171 187 # Add rng-tools package
172 188 if [ "$ENABLE_HWRANDOM" = true ] ; then
173 189 APT_INCLUDES="${APT_INCLUDES},rng-tools"
174 190 fi
175 191
192 if [ "$ENABLE_USER" = true ]; then
193 APT_INCLUDES="${APT_INCLUDES},sudo"
194 fi
195
176 196 # Add fbturbo video driver
177 197 if [ "$ENABLE_FBTURBO" = true ] ; then
178 198 # Enable xorg package dependencies
179 199 ENABLE_XORG=true
180 200 fi
181 201
182 202 # Add user defined window manager package
183 203 if [ -n "$ENABLE_WM" ] ; then
184 204 APT_INCLUDES="${APT_INCLUDES},${ENABLE_WM}"
185 205
186 206 # Enable xorg package dependencies
187 207 ENABLE_XORG=true
188 208 fi
189 209
190 210 # Add xorg package
191 211 if [ "$ENABLE_XORG" = true ] ; then
192 212 APT_INCLUDES="${APT_INCLUDES},xorg"
193 213 fi
194 214
195 215 # Base debootstrap (unpack only)
196 216 if [ "$ENABLE_MINBASE" = true ] ; then
197 217 http_proxy=${APT_PROXY} debootstrap --arch=armhf --variant=minbase --foreign --include=${APT_INCLUDES} $RELEASE $R http://${APT_SERVER}/debian
198 218 else
199 219 http_proxy=${APT_PROXY} debootstrap --arch=armhf --foreign --include=${APT_INCLUDES} $RELEASE $R http://${APT_SERVER}/debian
200 220 fi
201 221
202 222 # Copy qemu emulator binary to chroot
203 223 cp /usr/bin/qemu-arm-static $R/usr/bin
204 224
205 225 # Copy debian-archive-keyring.pgp
206 226 chroot $R mkdir -p /usr/share/keyrings
207 227 cp /usr/share/keyrings/debian-archive-keyring.gpg $R/usr/share/keyrings/debian-archive-keyring.gpg
208 228
209 229 # Complete the bootstrapping process
210 230 chroot $R /debootstrap/debootstrap --second-stage
211 231
212 232 # Mount required filesystems
213 233 mount -t proc none $R/proc
214 234 mount -t sysfs none $R/sys
215 235 mount --bind /dev/pts $R/dev/pts
216 236
217 237 # Use proxy inside chroot
218 238 if [ -z "$APT_PROXY" ] ; then
219 239 echo "Acquire::http::Proxy \"$APT_PROXY\";" >> $R/etc/apt/apt.conf.d/10proxy
220 240 fi
221 241
222 242 # Pin package flash-kernel to repositories.collabora.co.uk
223 243 cat <<EOM >$R/etc/apt/preferences.d/flash-kernel
224 244 Package: flash-kernel
225 245 Pin: origin repositories.collabora.co.uk
226 246 Pin-Priority: 1000
227 247 EOM
228 248
229 249 # Set up timezone
230 250 echo ${TIMEZONE} >$R/etc/timezone
231 LANG=C chroot $R dpkg-reconfigure -f noninteractive tzdata
251 chroot_exec dpkg-reconfigure -f noninteractive tzdata
232 252
233 253 # Upgrade collabora package index and install collabora keyring
234 254 echo "deb https://repositories.collabora.co.uk/debian ${RELEASE} rpi2" >$R/etc/apt/sources.list
235 LANG=C chroot $R apt-get -qq -y update
236 LANG=C chroot $R apt-get -qq -y --force-yes install collabora-obs-archive-keyring
255 chroot_exec apt-get -qq -y update
256 chroot_exec apt-get -qq -y --force-yes install collabora-obs-archive-keyring
237 257
238 258 # Set up initial sources.list
239 259 cat <<EOM >$R/etc/apt/sources.list
240 260 deb http://${APT_SERVER}/debian ${RELEASE} main contrib
241 261 #deb-src http://${APT_SERVER}/debian ${RELEASE} main contrib
242 262
243 263 deb http://${APT_SERVER}/debian/ ${RELEASE}-updates main contrib
244 264 #deb-src http://${APT_SERVER}/debian/ ${RELEASE}-updates main contrib
245 265
246 266 deb http://security.debian.org/ ${RELEASE}/updates main contrib
247 267 #deb-src http://security.debian.org/ ${RELEASE}/updates main contrib
248 268
249 269 deb https://repositories.collabora.co.uk/debian ${RELEASE} rpi2
250 270 EOM
251 271
252 272 # Upgrade package index and update all installed packages and changed dependencies
253 LANG=C chroot $R apt-get -qq -y update
254 LANG=C chroot $R apt-get -qq -y -u dist-upgrade
273 chroot_exec apt-get -qq -y update
274 chroot_exec apt-get -qq -y -u dist-upgrade
255 275
256 276 # Set up default locale and keyboard configuration
257 277 if [ "$ENABLE_MINBASE" = false ] ; then
258 278 # Set locale choice in debconf db, even though dpkg-reconfigure ignores and overwrites them due to some bug
259 279 # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=684134 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=685957
260 280 # ... so we have to set locales manually
261 281 if [ "$DEFLOCAL" = "en_US.UTF-8" ] ; then
262 LANG=C chroot $R echo "locales locales/locales_to_be_generated multiselect ${DEFLOCAL} UTF-8" | debconf-set-selections
282 chroot_exec echo "locales locales/locales_to_be_generated multiselect ${DEFLOCAL} UTF-8" | debconf-set-selections
263 283 else
264 284 # en_US.UTF-8 should be available anyway : https://www.debian.org/doc/manuals/debian-reference/ch08.en.html#_the_reconfiguration_of_the_locale
265 LANG=C chroot $R echo "locales locales/locales_to_be_generated multiselect en_US.UTF-8 UTF-8, ${DEFLOCAL} UTF-8" | debconf-set-selections
266 LANG=C chroot $R sed -i "/en_US.UTF-8/s/^#//" /etc/locale.gen
285 chroot_exec echo "locales locales/locales_to_be_generated multiselect en_US.UTF-8 UTF-8, ${DEFLOCAL} UTF-8" | debconf-set-selections
286 chroot_exec sed -i "/en_US.UTF-8/s/^#//" /etc/locale.gen
267 287 fi
268 LANG=C chroot $R sed -i "/${DEFLOCAL}/s/^#//" /etc/locale.gen
269 LANG=C chroot $R echo "locales locales/default_environment_locale select ${DEFLOCAL}" | debconf-set-selections
270 LANG=C chroot $R locale-gen
271 LANG=C chroot $R update-locale LANG=${DEFLOCAL}
288 chroot_exec sed -i "/${DEFLOCAL}/s/^#//" /etc/locale.gen
289 chroot_exec echo "locales locales/default_environment_locale select ${DEFLOCAL}" | debconf-set-selections
290 chroot_exec locale-gen
291 chroot_exec update-locale LANG=${DEFLOCAL}
272 292
273 293 # Keyboard configuration, if requested
274 294 if [ "$XKBMODEL" != "" ] ; then
275 LANG=C chroot $R sed -i "s/^XKBMODEL.*/XKBMODEL=\"${XKBMODEL}\"/" /etc/default/keyboard
295 chroot_exec sed -i "s/^XKBMODEL.*/XKBMODEL=\"${XKBMODEL}\"/" /etc/default/keyboard
276 296 fi
277 297 if [ "$XKBLAYOUT" != "" ] ; then
278 LANG=C chroot $R sed -i "s/^XKBLAYOUT.*/XKBLAYOUT=\"${XKBLAYOUT}\"/" /etc/default/keyboard
298 chroot_exec sed -i "s/^XKBLAYOUT.*/XKBLAYOUT=\"${XKBLAYOUT}\"/" /etc/default/keyboard
279 299 fi
280 300 if [ "$XKBVARIANT" != "" ] ; then
281 LANG=C chroot $R sed -i "s/^XKBVARIANT.*/XKBVARIANT=\"${XKBVARIANT}\"/" /etc/default/keyboard
301 chroot_exec sed -i "s/^XKBVARIANT.*/XKBVARIANT=\"${XKBVARIANT}\"/" /etc/default/keyboard
282 302 fi
283 303 if [ "$XKBOPTIONS" != "" ] ; then
284 LANG=C chroot $R sed -i "s/^XKBOPTIONS.*/XKBOPTIONS=\"${XKBOPTIONS}\"/" /etc/default/keyboard
304 chroot_exec sed -i "s/^XKBOPTIONS.*/XKBOPTIONS=\"${XKBOPTIONS}\"/" /etc/default/keyboard
285 305 fi
286 LANG=C chroot $R dpkg-reconfigure -f noninteractive keyboard-configuration
306 chroot_exec dpkg-reconfigure -f noninteractive keyboard-configuration
287 307 # Set up font console
288 308 case "${DEFLOCAL}" in
289 309 *UTF-8)
290 LANG=C chroot $R sed -i 's/^CHARMAP.*/CHARMAP="UTF-8"/' /etc/default/console-setup
310 chroot_exec sed -i 's/^CHARMAP.*/CHARMAP="UTF-8"/' /etc/default/console-setup
291 311 ;;
292 312 *)
293 LANG=C chroot $R sed -i 's/^CHARMAP.*/CHARMAP="guess"/' /etc/default/console-setup
313 chroot_exec sed -i 's/^CHARMAP.*/CHARMAP="guess"/' /etc/default/console-setup
294 314 ;;
295 315 esac
296 LANG=C chroot $R dpkg-reconfigure -f noninteractive console-setup
316 chroot_exec dpkg-reconfigure -f noninteractive console-setup
297 317 fi
298 318
299 319 # Kernel installation
300 320 # Install flash-kernel last so it doesn't try (and fail) to detect the platform in the chroot
301 LANG=C chroot $R apt-get -qq -y --no-install-recommends install linux-image-3.18.0-trunk-rpi2
302 LANG=C chroot $R apt-get -qq -y install flash-kernel
321 chroot_exec apt-get -qq -y --no-install-recommends install linux-image-${KERNEL} raspberrypi-bootloader-nokernel
322 chroot_exec apt-get -qq -y install flash-kernel
303 323
304 324 VMLINUZ="$(ls -1 $R/boot/vmlinuz-* | sort | tail -n 1)"
305 325 [ -z "$VMLINUZ" ] && exit 1
306 mkdir -p $R/boot/firmware
307
308 # required boot binaries from raspberry/firmware github (commit: "kernel: Bump to 3.18.10")
309 wget -q -O $R/boot/firmware/bootcode.bin https://github.com/raspberrypi/firmware/raw/cd355a9dd4f1f4de2e79b0c8e102840885cdf1de/boot/bootcode.bin
310 wget -q -O $R/boot/firmware/fixup_cd.dat https://github.com/raspberrypi/firmware/raw/cd355a9dd4f1f4de2e79b0c8e102840885cdf1de/boot/fixup_cd.dat
311 wget -q -O $R/boot/firmware/fixup.dat https://github.com/raspberrypi/firmware/raw/cd355a9dd4f1f4de2e79b0c8e102840885cdf1de/boot/fixup.dat
312 wget -q -O $R/boot/firmware/fixup_x.dat https://github.com/raspberrypi/firmware/raw/cd355a9dd4f1f4de2e79b0c8e102840885cdf1de/boot/fixup_x.dat
313 wget -q -O $R/boot/firmware/start_cd.elf https://github.com/raspberrypi/firmware/raw/cd355a9dd4f1f4de2e79b0c8e102840885cdf1de/boot/start_cd.elf
314 wget -q -O $R/boot/firmware/start.elf https://github.com/raspberrypi/firmware/raw/cd355a9dd4f1f4de2e79b0c8e102840885cdf1de/boot/start.elf
315 wget -q -O $R/boot/firmware/start_x.elf https://github.com/raspberrypi/firmware/raw/cd355a9dd4f1f4de2e79b0c8e102840885cdf1de/boot/start_x.elf
316 326 cp $VMLINUZ $R/boot/firmware/kernel7.img
317 327
318 328 # Set up IPv4 hosts
319 329 echo ${HOSTNAME} >$R/etc/hostname
320 330 cat <<EOM >$R/etc/hosts
321 331 127.0.0.1 localhost
322 332 127.0.1.1 ${HOSTNAME}
323 333 EOM
324 334 if [ "$NET_ADDRESS" != "" ] ; then
325 335 NET_IP=$(echo ${NET_ADDRESS} | cut -f 1 -d'/')
326 336 sed -i "s/^127.0.1.1/${NET_IP}/" $R/etc/hosts
327 337 fi
328 338
329 339 # Set up IPv6 hosts
330 340 if [ "$ENABLE_IPV6" = true ] ; then
331 341 cat <<EOM >>$R/etc/hosts
332 342
333 343 ::1 localhost ip6-localhost ip6-loopback
334 344 ff02::1 ip6-allnodes
335 345 ff02::2 ip6-allrouters
336 346 EOM
337 347 fi
338 348
339 349 # Place hint about network configuration
340 350 cat <<EOM >$R/etc/network/interfaces
341 351 # Debian switched to systemd-networkd configuration files.
342 352 # please configure your networks in '/etc/systemd/network/'
343 353 EOM
344 354
345 355 if [ "$ENABLE_DHCP" = true ] ; then
346 356 # Enable systemd-networkd DHCP configuration for interface eth0
347 357 cat <<EOM >$R/etc/systemd/network/eth.network
348 358 [Match]
349 359 Name=eth0
350 360
351 361 [Network]
352 362 DHCP=yes
353 363 EOM
354 364
355 365 # Set DHCP configuration to IPv4 only
356 366 if [ "$ENABLE_IPV6" = false ] ; then
357 367 sed -i "s/^DHCP=yes/DHCP=v4/" $R/etc/systemd/network/eth.network
358 368 fi
359 369 else # ENABLE_DHCP=false
360 370 cat <<EOM >$R/etc/systemd/network/eth.network
361 371 [Match]
362 372 Name=eth0
363 373
364 374 [Network]
365 375 DHCP=no
366 376 Address=${NET_ADDRESS}
367 377 Gateway=${NET_GATEWAY}
368 378 DNS=${NET_DNS_1}
369 379 DNS=${NET_DNS_2}
370 380 Domains=${NET_DNS_DOMAINS}
371 381 NTP=${NET_NTP_1}
372 382 NTP=${NET_NTP_2}
373 383 EOM
374 384 fi
375 385
376 386 # Enable systemd-networkd service
377 LANG=C chroot $R systemctl enable systemd-networkd
387 chroot_exec systemctl enable systemd-networkd
378 388
379 389 # Generate crypt(3) password string
380 390 ENCRYPTED_PASSWORD=`mkpasswd -m sha-512 ${PASSWORD}`
381 391
382 392 # Set up default user
383 LANG=C chroot $R adduser --gecos "Raspberry PI user" --add_extra_groups --disabled-password pi
384 LANG=C chroot $R usermod -a -G sudo -p "${ENCRYPTED_PASSWORD}" pi
393 if [ "$ENABLE_USER" = true ] ; then
394 chroot_exec adduser --gecos pi --add_extra_groups --disabled-password pi
395 chroot_exec usermod -a -G sudo -p "${ENCRYPTED_PASSWORD}" pi
396 fi
397
398 # Set up root password or not
399 if [ "$ENABLE_ROOT" = true ]; then
400 chroot_exec usermod -p "${ENCRYPTED_PASSWORD}" root
385 401
386 # Set up root password
387 LANG=C chroot $R usermod -p "${ENCRYPTED_PASSWORD}" root
402 if [ "$ENABLE_ROOT_SSH" = true ]; then
403 sed -i 's|[#]*PermitRootLogin.*|PermitRootLogin yes|g' $R/etc/ssh/sshd_config
404 fi
405 else
406 chroot_exec usermod -p \'!\' root
407 fi
388 408
389 409 # Set up firmware boot cmdline
390 410 CMDLINE="dwc_otg.lpm_enable=0 root=/dev/mmcblk0p2 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait net.ifnames=1 console=tty1"
391 411
392 412 # Set up serial console support (if requested)
393 413 if [ "$ENABLE_CONSOLE" = true ] ; then
394 414 CMDLINE="${CMDLINE} console=ttyAMA0,115200 kgdboc=ttyAMA0,115200"
395 415 fi
396 416
397 417 # Set up IPv6 networking support
398 418 if [ "$ENABLE_IPV6" = false ] ; then
399 419 CMDLINE="${CMDLINE} ipv6.disable=1"
400 420 fi
401 421
402 422 echo "${CMDLINE}" >$R/boot/firmware/cmdline.txt
403 423
404 424 # Set up firmware config
405 cat <<EOM >$R/boot/firmware/config.txt
406 # For more options and information see
407 # http://www.raspberrypi.org/documentation/configuration/config-txt.md
408 # Some settings may impact device functionality. See link above for details
409
410 # uncomment if you get no picture on HDMI for a default "safe" mode
411 #hdmi_safe=1
412
413 # uncomment this if your display has a black border of unused pixels visible
414 # and your display can output without overscan
415 #disable_overscan=1
416
417 # uncomment the following to adjust overscan. Use positive numbers if console
418 # goes off screen, and negative if there is too much border
419 #overscan_left=16
420 #overscan_right=16
421 #overscan_top=16
422 #overscan_bottom=16
423
424 # uncomment to force a console size. By default it will be display's size minus
425 # overscan.
426 #framebuffer_width=1280
427 #framebuffer_height=720
428
429 # uncomment if hdmi display is not detected and composite is being output
430 #hdmi_force_hotplug=1
431
432 # uncomment to force a specific HDMI mode (this will force VGA)
433 #hdmi_group=1
434 #hdmi_mode=1
435
436 # uncomment to force a HDMI mode rather than DVI. This can make audio work in
437 # DMT (computer monitor) modes
438 #hdmi_drive=2
439
440 # uncomment to increase signal to HDMI, if you have interference, blanking, or
441 # no display
442 #config_hdmi_boost=4
443
444 # uncomment for composite PAL
445 #sdtv_mode=2
446
447 # uncomment to overclock the arm. 700 MHz is the default.
448 #arm_freq=800
449 EOM
425 install -o root -g root -m 644 files/config.txt $R/boot/firmware/config.txt
450 426
451 427 # Load snd_bcm2835 kernel module at boot time
452 428 if [ "$ENABLE_SOUND" = true ] ; then
453 429 echo "snd_bcm2835" >>$R/etc/modules
454 430 fi
455 431
456 432 # Set smallest possible GPU memory allocation size: 16MB (no X)
457 433 if [ "$ENABLE_MINGPU" = true ] ; then
458 434 echo "gpu_mem=16" >>$R/boot/firmware/config.txt
459 435 fi
460 436
461 437 # Create symlinks
462 438 ln -sf firmware/config.txt $R/boot/config.txt
463 439 ln -sf firmware/cmdline.txt $R/boot/cmdline.txt
464 440
465 441 # Prepare modules-load.d directory
466 442 mkdir -p $R/lib/modules-load.d/
467 443
468 444 # Load random module on boot
469 445 if [ "$ENABLE_HWRANDOM" = true ] ; then
470 446 cat <<EOM >$R/lib/modules-load.d/rpi2.conf
471 447 bcm2708_rng
472 448 EOM
473 449 fi
474 450
475 451 # Prepare modprobe.d directory
476 452 mkdir -p $R/etc/modprobe.d/
477 453
478 454 # Blacklist sound modules
479 cat <<EOM >$R/etc/modprobe.d/raspi-blacklist.conf
480 blacklist snd_soc_core
481 blacklist snd_pcm
482 blacklist snd_pcm_dmaengine
483 blacklist snd_timer
484 blacklist snd_compress
485 blacklist snd_soc_pcm512x_i2c
486 blacklist snd_soc_pcm512x
487 blacklist snd_soc_tas5713
488 blacklist snd_soc_wm8804
489 EOM
455 install -o root -g root -m 644 files/modprobe.d/raspi-blacklist.conf $R/etc/modprobe.d/raspi-blacklist.conf
490 456
491 457 # Create default fstab
492 cat <<EOM >$R/etc/fstab
493 /dev/mmcblk0p2 / ext4 noatime,nodiratime,errors=remount-ro,discard,data=writeback,commit=100 0 1
494 /dev/mmcblk0p1 /boot/firmware vfat defaults,noatime,nodiratime 0 2
495 EOM
496
497 # Avoid swapping and increase cache sizes
498 cat <<EOM >>$R/etc/sysctl.d/99-sysctl.conf
458 install -o root -g root -m 644 files/fstab $R/etc/fstab
499 459
500 460 # Avoid swapping and increase cache sizes
501 vm.swappiness=1
502 vm.dirty_background_ratio=20
503 vm.dirty_ratio=40
504 vm.dirty_writeback_centisecs=500
505 vm.dirty_expire_centisecs=6000
506 EOM
461 install -o root -g root -m 644 files/sysctl.d/81-rpi-vm.conf $R/etc/sysctl.d/81-rpi-vm.conf
507 462
508 463 # Enable network stack hardening
509 464 if [ "$ENABLE_HARDNET" = true ] ; then
510 cat <<EOM >>$R/etc/sysctl.d/99-sysctl.conf
511
512 # Enable network stack hardening
513 net.ipv4.tcp_timestamps=0
514 net.ipv4.tcp_syncookies=1
515 net.ipv4.conf.all.rp_filter=1
516 net.ipv4.conf.all.accept_redirects=0
517 net.ipv4.conf.all.send_redirects=0
518 net.ipv4.conf.all.accept_source_route=0
519 net.ipv4.conf.default.rp_filter=1
520 net.ipv4.conf.default.accept_redirects=0
521 net.ipv4.conf.default.send_redirects=0
522 net.ipv4.conf.default.accept_source_route=0
523 net.ipv4.conf.lo.accept_redirects=0
524 net.ipv4.conf.lo.send_redirects=0
525 net.ipv4.conf.lo.accept_source_route=0
526 net.ipv4.conf.eth0.accept_redirects=0
527 net.ipv4.conf.eth0.send_redirects=0
528 net.ipv4.conf.eth0.accept_source_route=0
529 net.ipv4.icmp_echo_ignore_broadcasts=1
530 net.ipv4.icmp_ignore_bogus_error_responses=1
531
532 net.ipv6.conf.all.accept_redirects=0
533 net.ipv6.conf.all.accept_source_route=0
534 net.ipv6.conf.all.router_solicitations=0
535 net.ipv6.conf.all.accept_ra_rtr_pref=0
536 net.ipv6.conf.all.accept_ra_pinfo=0
537 net.ipv6.conf.all.accept_ra_defrtr=0
538 net.ipv6.conf.all.autoconf=0
539 net.ipv6.conf.all.dad_transmits=0
540 net.ipv6.conf.all.max_addresses=1
541
542 net.ipv6.conf.default.accept_redirects=0
543 net.ipv6.conf.default.accept_source_route=0
544 net.ipv6.conf.default.router_solicitations=0
545 net.ipv6.conf.default.accept_ra_rtr_pref=0
546 net.ipv6.conf.default.accept_ra_pinfo=0
547 net.ipv6.conf.default.accept_ra_defrtr=0
548 net.ipv6.conf.default.autoconf=0
549 net.ipv6.conf.default.dad_transmits=0
550 net.ipv6.conf.default.max_addresses=1
551
552 net.ipv6.conf.lo.accept_redirects=0
553 net.ipv6.conf.lo.accept_source_route=0
554 net.ipv6.conf.lo.router_solicitations=0
555 net.ipv6.conf.lo.accept_ra_rtr_pref=0
556 net.ipv6.conf.lo.accept_ra_pinfo=0
557 net.ipv6.conf.lo.accept_ra_defrtr=0
558 net.ipv6.conf.lo.autoconf=0
559 net.ipv6.conf.lo.dad_transmits=0
560 net.ipv6.conf.lo.max_addresses=1
561
562 net.ipv6.conf.eth0.accept_redirects=0
563 net.ipv6.conf.eth0.accept_source_route=0
564 net.ipv6.conf.eth0.router_solicitations=0
565 net.ipv6.conf.eth0.accept_ra_rtr_pref=0
566 net.ipv6.conf.eth0.accept_ra_pinfo=0
567 net.ipv6.conf.eth0.accept_ra_defrtr=0
568 net.ipv6.conf.eth0.autoconf=0
569 net.ipv6.conf.eth0.dad_transmits=0
570 net.ipv6.conf.eth0.max_addresses=1
571 EOM
465 install -o root -g root -m 644 files/sysctl.d/81-rpi-net-hardening.conf $R/etc/sysctl.d/81-rpi-net-hardening.conf
572 466
573 467 # Enable resolver warnings about spoofed addresses
574 468 cat <<EOM >>$R/etc/host.conf
575 469 spoof warn
576 470 EOM
577 471 fi
578 472
579 # Regenerate openssh server host keys
473 # First boot actions
474 cat files/firstboot/10-begin.sh > $R/etc/rc.firstboot
475
476 # Ensure openssh server host keys are regenerated on first boot
580 477 if [ "$ENABLE_SSHD" = true ] ; then
581 rm -fr $R/etc/ssh/ssh_host_*
582 LANG=C chroot $R dpkg-reconfigure openssh-server
478 cat files/firstboot/21-generate-ssh-keys.sh >> $R/etc/rc.firstboot
479 rm -f $R/etc/ssh/ssh_host_*
480 fi
481
482 if [ "$EXPANDROOT" = true ] ; then
483 cat files/firstboot/22-expandroot.sh >> $R/etc/rc.firstboot
484 fi
485
486 cat files/firstboot/99-finish.sh >> $R/etc/rc.firstboot
487 chmod +x $R/etc/rc.firstboot
488
489 sed -i '/exit 0/d' $R/etc/rc.local
490 echo /etc/rc.firstboot >> $R/etc/rc.local
491 echo exit 0 >> $R/etc/rc.local
492
493 # Disable rsyslog
494 if [ "$ENABLE_RSYSLOG" = false ]; then
495 sed -i 's|[#]*ForwardToSyslog=yes|ForwardToSyslog=no|g' $R/etc/systemd/journald.conf
496 chroot_exec systemctl disable rsyslog
497 chroot_exec apt-get purge -q -y --force-yes rsyslog
583 498 fi
584 499
585 500 # Enable serial console systemd style
586 501 if [ "$ENABLE_CONSOLE" = true ] ; then
587 LANG=C chroot $R systemctl enable serial-getty\@ttyAMA0.service
502 chroot_exec systemctl enable serial-getty\@ttyAMA0.service
588 503 fi
589 504
590 505 # Enable firewall based on iptables started by systemd service
591 506 if [ "$ENABLE_IPTABLES" = true ] ; then
592 507 # Create iptables configuration directory
593 508 mkdir -p "$R/etc/iptables"
594 509
595 510 # Create iptables systemd service
596 cat <<EOM >$R/etc/systemd/system/iptables.service
597 [Unit]
598 Description=Packet Filtering Framework
599 DefaultDependencies=no
600 After=systemd-sysctl.service
601 Before=sysinit.target
602 [Service]
603 Type=oneshot
604 ExecStart=/sbin/iptables-restore /etc/iptables/iptables.rules
605 ExecReload=/sbin/iptables-restore /etc/iptables/iptables.rules
606 ExecStop=/etc/iptables/flush-iptables.sh
607 RemainAfterExit=yes
608 [Install]
609 WantedBy=multi-user.target
610 EOM
511 install -o root -g root -m 644 files/iptables/iptables.service $R/etc/systemd/system/iptables.service
611 512
612 513 # Create flush-table script called by iptables service
613 cat <<EOM >$R/etc/iptables/flush-iptables.sh
614 #!/bin/sh
615 iptables -F
616 iptables -X
617 iptables -t nat -F
618 iptables -t nat -X
619 iptables -t mangle -F
620 iptables -t mangle -X
621 iptables -P INPUT ACCEPT
622 iptables -P FORWARD ACCEPT
623 iptables -P OUTPUT ACCEPT
624 EOM
514 install -o root -g root -m 755 files/iptables/flush-iptables.sh $R/etc/iptables/flush-iptables.sh
625 515
626 516 # Create iptables rule file
627 cat <<EOM >$R/etc/iptables/iptables.rules
628 *filter
629 :INPUT DROP [0:0]
630 :FORWARD DROP [0:0]
631 :OUTPUT ACCEPT [0:0]
632 :TCP - [0:0]
633 :UDP - [0:0]
634 :SSH - [0:0]
635
636 # Rate limit ping requests
637 -A INPUT -p icmp --icmp-type echo-request -m limit --limit 30/min --limit-burst 8 -j ACCEPT
638 -A INPUT -p icmp --icmp-type echo-request -j DROP
639
640 # Accept established connections
641 -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
642
643 # Accept all traffic on loopback interface
644 -A INPUT -i lo -j ACCEPT
645
646 # Drop packets declared invalid
647 -A INPUT -m conntrack --ctstate INVALID -j DROP
648
649 # SSH rate limiting
650 -A INPUT -p tcp --dport ssh -m conntrack --ctstate NEW -j SSH
651 -A SSH -m recent --name sshbf --rttl --rcheck --hitcount 3 --seconds 10 -j DROP
652 -A SSH -m recent --name sshbf --rttl --rcheck --hitcount 20 --seconds 1800 -j DROP
653 -A SSH -m recent --name sshbf --set -j ACCEPT
654
655 # Send TCP and UDP connections to their respective rules chain
656 -A INPUT -p udp -m conntrack --ctstate NEW -j UDP
657 -A INPUT -p tcp --syn -m conntrack --ctstate NEW -j TCP
658
659 # Reject dropped packets with a RFC compliant responce
660 -A INPUT -p udp -j REJECT --reject-with icmp-port-unreachable
661 -A INPUT -p tcp -j REJECT --reject-with tcp-rst
662 -A INPUT -j REJECT --reject-with icmp-proto-unreachable
663
664 ## TCP PORT RULES
665 # -A TCP -p tcp -j LOG
666
667 ## UDP PORT RULES
668 # -A UDP -p udp -j LOG
669
670 COMMIT
671 EOM
517 install -o root -g root -m 644 files/iptables/iptables.rules $R/etc/iptables/iptables.rules
672 518
673 519 # Reload systemd configuration and enable iptables service
674 LANG=C chroot $R systemctl daemon-reload
675 LANG=C chroot $R systemctl enable iptables.service
520 chroot_exec systemctl daemon-reload
521 chroot_exec systemctl enable iptables.service
676 522
677 523 if [ "$ENABLE_IPV6" = true ] ; then
678 524 # Create ip6tables systemd service
679 cat <<EOM >$R/etc/systemd/system/ip6tables.service
680 [Unit]
681 Description=Packet Filtering Framework
682 DefaultDependencies=no
683 After=systemd-sysctl.service
684 Before=sysinit.target
685 [Service]
686 Type=oneshot
687 ExecStart=/sbin/ip6tables-restore /etc/iptables/ip6tables.rules
688 ExecReload=/sbin/ip6tables-restore /etc/iptables/ip6tables.rules
689 ExecStop=/etc/iptables/flush-ip6tables.sh
690 RemainAfterExit=yes
691 [Install]
692 WantedBy=multi-user.target
693 EOM
525 install -o root -g root -m 644 files/iptables/ip6tables.service $R/etc/systemd/system/ip6tables.service
694 526
695 527 # Create ip6tables file
696 cat <<EOM >$R/etc/iptables/flush-ip6tables.sh
697 #!/bin/sh
698 ip6tables -F
699 ip6tables -X
700 ip6tables -Z
701 for table in $(</proc/net/ip6_tables_names)
702 do
703 ip6tables -t \$table -F
704 ip6tables -t \$table -X
705 ip6tables -t \$table -Z
706 done
707 ip6tables -P INPUT ACCEPT
708 ip6tables -P OUTPUT ACCEPT
709 ip6tables -P FORWARD ACCEPT
710 EOM
711
712 # Create ip6tables rule file
713 cat <<EOM >$R/etc/iptables/ip6tables.rules
714 *filter
715 :INPUT DROP [0:0]
716 :FORWARD DROP [0:0]
717 :OUTPUT ACCEPT [0:0]
718 :TCP - [0:0]
719 :UDP - [0:0]
720 :SSH - [0:0]
528 install -o root -g root -m 755 files/iptables/flush-ip6tables.sh $R/etc/iptables/flush-ip6tables.sh
721 529
722 # Drop packets with RH0 headers
723 -A INPUT -m rt --rt-type 0 -j DROP
724 -A OUTPUT -m rt --rt-type 0 -j DROP
725 -A FORWARD -m rt --rt-type 0 -j DROP
726
727 # Rate limit ping requests
728 -A INPUT -p icmpv6 --icmpv6-type echo-request -m limit --limit 30/min --limit-burst 8 -j ACCEPT
729 -A INPUT -p icmpv6 --icmpv6-type echo-request -j DROP
730
731 # Accept established connections
732 -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
733
734 # Accept all traffic on loopback interface
735 -A INPUT -i lo -j ACCEPT
736
737 # Drop packets declared invalid
738 -A INPUT -m conntrack --ctstate INVALID -j DROP
739
740 # SSH rate limiting
741 -A INPUT -p tcp --dport ssh -m conntrack --ctstate NEW -j SSH
742 -A SSH -m recent --name sshbf --rttl --rcheck --hitcount 3 --seconds 10 -j DROP
743 -A SSH -m recent --name sshbf --rttl --rcheck --hitcount 20 --seconds 1800 -j DROP
744 -A SSH -m recent --name sshbf --set -j ACCEPT
745
746 # Send TCP and UDP connections to their respective rules chain
747 -A INPUT -p udp -m conntrack --ctstate NEW -j UDP
748 -A INPUT -p tcp --syn -m conntrack --ctstate NEW -j TCP
749
750 # Reject dropped packets with a RFC compliant responce
751 -A INPUT -p udp -j REJECT --reject-with icmp6-adm-prohibited
752 -A INPUT -p tcp -j REJECT --reject-with icmp6-adm-prohibited
753 -A INPUT -j REJECT --reject-with icmp6-adm-prohibited
754
755 ## TCP PORT RULES
756 # -A TCP -p tcp -j LOG
757
758 ## UDP PORT RULES
759 # -A UDP -p udp -j LOG
760
761 COMMIT
762 EOM
530 install -o root -g root -m 644 files/iptables/ip6tables.rules $R/etc/iptables/ip6tables.rules
763 531
764 532 # Reload systemd configuration and enable iptables service
765 LANG=C chroot $R systemctl daemon-reload
766 LANG=C chroot $R systemctl enable ip6tables.service
533 chroot_exec systemctl daemon-reload
534 chroot_exec systemctl enable ip6tables.service
767 535 fi
768 536 fi
769 537
770 538 # Remove SSHD related iptables rules
771 539 if [ "$ENABLE_SSHD" = false ] ; then
772 540 sed -e '/^#/! {/SSH/ s/^/# /}' -i $R/etc/iptables/iptables.rules 2> /dev/null
773 541 sed -e '/^#/! {/SSH/ s/^/# /}' -i $R/etc/iptables/ip6tables.rules 2> /dev/null
774 542 fi
775 543
776 544 # Install gcc/c++ build environment inside the chroot
777 545 if [ "$ENABLE_UBOOT" = true ] || [ "$ENABLE_FBTURBO" = true ]; then
778 LANG=C chroot $R apt-get install -q -y --force-yes --no-install-recommends linux-compiler-gcc-4.9-arm g++ make bc
546 chroot_exec apt-get install -q -y --force-yes --no-install-recommends linux-compiler-gcc-4.9-arm g++ make bc
779 547 fi
780 548
781 549 # Fetch and build U-Boot bootloader
782 550 if [ "$ENABLE_UBOOT" = true ] ; then
783 551 # Fetch U-Boot bootloader sources
784 552 git -C $R/tmp clone git://git.denx.de/u-boot.git
785 553
786 554 # Build and install U-Boot inside chroot
787 LANG=C chroot $R make -C /tmp/u-boot/ rpi_2_defconfig all
555 chroot_exec make -C /tmp/u-boot/ rpi_2_defconfig all
788 556
789 557 # Copy compiled bootloader binary and set config.txt to load it
790 558 cp $R/tmp/u-boot/u-boot.bin $R/boot/firmware/
791 559 printf "\n# boot u-boot kernel\nkernel=u-boot.bin\n" >> $R/boot/firmware/config.txt
792 560
793 561 # Set U-Boot command file
794 562 cat <<EOM >$R/boot/firmware/uboot.mkimage
795 563 # Tell Linux that it is booting on a Raspberry Pi2
796 564 setenv machid 0x00000c42
797 565
798 566 # Set the kernel boot command line
799 567 setenv bootargs "earlyprintk ${CMDLINE}"
800 568
801 569 # Save these changes to u-boot's environment
802 570 saveenv
803 571
804 572 # Load the existing Linux kernel into RAM
805 573 fatload mmc 0:1 \${kernel_addr_r} kernel7.img
806 574
807 575 # Boot the kernel we have just loaded
808 576 bootz \${kernel_addr_r}
809 577 EOM
810 578
811 579 # Generate U-Boot image from command file
812 LANG=C chroot $R mkimage -A arm -O linux -T script -C none -a 0x00000000 -e 0x00000000 -n "RPi2 Boot Script" -d /boot/firmware/uboot.mkimage /boot/firmware/boot.scr
580 chroot_exec mkimage -A arm -O linux -T script -C none -a 0x00000000 -e 0x00000000 -n "RPi2 Boot Script" -d /boot/firmware/uboot.mkimage /boot/firmware/boot.scr
813 581 fi
814 582
815 583 # Fetch and build fbturbo Xorg driver
816 584 if [ "$ENABLE_FBTURBO" = true ] ; then
817 585 # Fetch fbturbo driver sources
818 586 git -C $R/tmp clone https://github.com/ssvb/xf86-video-fbturbo.git
819 587
820 588 # Install Xorg build dependencies
821 LANG=C chroot $R apt-get install -q -y --no-install-recommends xorg-dev xutils-dev x11proto-dri2-dev libltdl-dev libtool automake libdrm-dev
589 chroot_exec apt-get install -q -y --no-install-recommends xorg-dev xutils-dev x11proto-dri2-dev libltdl-dev libtool automake libdrm-dev
822 590
823 591 # Build and install fbturbo driver inside chroot
824 LANG=C chroot $R /bin/bash -c "cd /tmp/xf86-video-fbturbo; autoreconf -vi; ./configure --prefix=/usr; make; make install"
592 chroot_exec /bin/bash -c "cd /tmp/xf86-video-fbturbo; autoreconf -vi; ./configure --prefix=/usr; make; make install"
825 593
826 594 # Add fbturbo driver to Xorg configuration
827 595 cat <<EOM >$R/usr/share/X11/xorg.conf.d/99-fbturbo.conf
828 596 Section "Device"
829 597 Identifier "Allwinner A10/A13 FBDEV"
830 598 Driver "fbturbo"
831 599 Option "fbdev" "/dev/fb0"
832 600 Option "SwapbuffersWait" "true"
833 601 EndSection
834 602 EOM
835 603
836 604 # Remove Xorg build dependencies
837 LANG=C chroot $R apt-get -q -y purge --auto-remove xorg-dev xutils-dev x11proto-dri2-dev libltdl-dev libtool automake libdrm-dev
605 chroot_exec apt-get -q -y purge --auto-remove xorg-dev xutils-dev x11proto-dri2-dev libltdl-dev libtool automake libdrm-dev
838 606 fi
839 607
840 608 # Remove gcc/c++ build environment from the chroot
841 609 if [ "$ENABLE_UBOOT" = true ] || [ "$ENABLE_FBTURBO" = true ]; then
842 LANG=C chroot $R apt-get -y -q purge --auto-remove bc binutils cpp cpp-4.9 g++ g++-4.9 gcc gcc-4.9 libasan1 libatomic1 libc-dev-bin libc6-dev libcloog-isl4 libgcc-4.9-dev libgomp1 libisl10 libmpc3 libmpfr4 libstdc++-4.9-dev libubsan0 linux-compiler-gcc-4.9-arm linux-libc-dev make
610 chroot_exec apt-get -y -q purge --auto-remove bc binutils cpp cpp-4.9 g++ g++-4.9 gcc gcc-4.9 libasan1 libatomic1 libc-dev-bin libc6-dev libcloog-isl4 libgcc-4.9-dev libgomp1 libisl10 libmpc3 libmpfr4 libstdc++-4.9-dev libubsan0 linux-compiler-gcc-4.9-arm linux-libc-dev make
843 611 fi
844 612
845 613 # Clean cached downloads
846 LANG=C chroot $R apt-get -y clean
847 LANG=C chroot $R apt-get -y autoclean
848 LANG=C chroot $R apt-get -y autoremove
614 chroot_exec apt-get -y clean
615 chroot_exec apt-get -y autoclean
616 chroot_exec apt-get -y autoremove
849 617
850 618 # Unmount mounted filesystems
851 619 umount -l $R/proc
852 620 umount -l $R/sys
853 621
854 622 # Clean up files
855 623 rm -f $R/etc/apt/sources.list.save
856 624 rm -f $R/etc/resolvconf/resolv.conf.d/original
857 625 rm -rf $R/run
858 626 mkdir -p $R/run
859 627 rm -f $R/etc/*-
860 628 rm -f $R/root/.bash_history
861 629 rm -rf $R/tmp/*
862 630 rm -f $R/var/lib/urandom/random-seed
863 631 [ -L $R/var/lib/dbus/machine-id ] || rm -f $R/var/lib/dbus/machine-id
864 632 rm -f $R/etc/machine-id
865 633 rm -fr $R/etc/apt/apt.conf.d/10proxy
866 634
867 635 # Calculate size of the chroot directory in KB
868 636 CHROOT_SIZE=$(expr `du -s $R | awk '{ print $1 }'`)
869 637
870 638 # Calculate the amount of needed 512 Byte sectors
871 639 TABLE_SECTORS=$(expr 1 \* 1024 \* 1024 \/ 512)
872 640 BOOT_SECTORS=$(expr 64 \* 1024 \* 1024 \/ 512)
873 641 ROOT_OFFSET=$(expr ${TABLE_SECTORS} + ${BOOT_SECTORS})
874 642
875 643 # The root partition is EXT4
876 644 # This means more space than the actual used space of the chroot is used.
877 645 # As overhead for journaling and reserved blocks 20% are added.
878 646 ROOT_SECTORS=$(expr $(expr ${CHROOT_SIZE} + ${CHROOT_SIZE} \/ 100 \* 20) \* 1024 \/ 512)
879 647
880 648 # Calculate required image size in 512 Byte sectors
881 649 IMAGE_SECTORS=$(expr ${TABLE_SECTORS} + ${BOOT_SECTORS} + ${ROOT_SECTORS})
882 650
883 651 # Prepare date string for image file name
884 652 DATE="$(date +%Y-%m-%d)"
885 653
886 654 # Prepare image file
887 655 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}.img" bs=512 count=${TABLE_SECTORS}
888 656 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}.img" bs=512 count=0 seek=${IMAGE_SECTORS}
889 657
890 658 # Write partition table
891 659 sfdisk -q -f "$BASEDIR/${DATE}-debian-${RELEASE}.img" <<EOM
892 660 unit: sectors
893 661
894 662 1 : start= ${TABLE_SECTORS}, size= ${BOOT_SECTORS}, Id= c, bootable
895 663 2 : start= ${ROOT_OFFSET}, size= ${ROOT_SECTORS}, Id=83
896 664 3 : start= 0, size= 0, Id= 0
897 665 4 : start= 0, size= 0, Id= 0
898 666 EOM
899 667
900 668 # Set up temporary loop devices and build filesystems
901 669 VFAT_LOOP="$(losetup -o 1M --sizelimit 64M -f --show $BASEDIR/${DATE}-debian-${RELEASE}.img)"
902 670 EXT4_LOOP="$(losetup -o 65M -f --show $BASEDIR/${DATE}-debian-${RELEASE}.img)"
903 671 mkfs.vfat "$VFAT_LOOP"
904 672 mkfs.ext4 "$EXT4_LOOP"
905 673
906 674 # Mount the temporary loop devices
907 675 mkdir -p "$BUILDDIR/mount"
908 676 mount "$EXT4_LOOP" "$BUILDDIR/mount"
909 677
910 678 mkdir -p "$BUILDDIR/mount/boot/firmware"
911 679 mount "$VFAT_LOOP" "$BUILDDIR/mount/boot/firmware"
912 680
913 681 # Copy all files from the chroot to the loop device mount point directory
914 682 rsync -a "$R/" "$BUILDDIR/mount/"
915 683
916 684 # Unmount all temporary loop devices and mount points
917 685 cleanup
918 686
919 687 # (optinal) create block map file for "bmaptool"
920 688 bmaptool create -o "$BASEDIR/${DATE}-debian-${RELEASE}.bmap" "$BASEDIR/${DATE}-debian-${RELEASE}.img"
921 689
922 690 # Image was successfully created
923 691 echo "$BASEDIR/${DATE}-debian-${RELEASE}.img (${IMAGE_SIZE})" ": successfully created"
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