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1 | 1 | #!/bin/sh |
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2 | 2 | |
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3 | 3 | ######################################################################## |
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4 | 4 | # rpi2-gen-image.sh ver2a 12/2015 |
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5 | 5 | # |
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6 | 6 | # Advanced debian "jessie" bootstrap script for RPi2 |
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7 | 7 | # |
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8 | 8 | # This program is free software; you can redistribute it and/or |
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9 | 9 | # modify it under the terms of the GNU General Public License |
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10 | 10 | # as published by the Free Software Foundation; either version 2 |
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11 | 11 | # of the License, or (at your option) any later version. |
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12 | 12 | # |
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13 | 13 | # some parts based on rpi2-build-image: |
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14 | 14 | # Copyright (C) 2015 Ryan Finnie <ryan@finnie.org> |
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15 | 15 | # Copyright (C) 2015 Luca Falavigna <dktrkranz@debian.org> |
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16 | 16 | ######################################################################## |
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17 | 17 | |
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18 | 18 | source ./functions.sh |
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19 | 19 | |
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20 | 20 | set -e |
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21 | 21 | set -x |
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22 | 22 | |
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23 | 23 | # Debian release |
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24 | 24 | RELEASE=${RELEASE:=jessie} |
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25 | 25 | KERNEL=${KERNEL:=3.18.0-trunk-rpi2} |
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26 | 26 | |
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27 | 27 | # Build settings |
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28 | 28 | BASEDIR=$(pwd)/images/${RELEASE} |
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29 | 29 | BUILDDIR=${BASEDIR}/build |
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30 | 30 | |
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31 | 31 | # General settings |
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32 | 32 | HOSTNAME=${HOSTNAME:=rpi2-${RELEASE}} |
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33 | 33 | PASSWORD=${PASSWORD:=raspberry} |
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34 | 34 | DEFLOCAL=${DEFLOCAL:="en_US.UTF-8"} |
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35 | 35 | TIMEZONE=${TIMEZONE:="Europe/Berlin"} |
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36 | 36 | XKBMODEL=${XKBMODEL:=""} |
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37 | 37 | XKBLAYOUT=${XKBLAYOUT:=""} |
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38 | 38 | XKBVARIANT=${XKBVARIANT:=""} |
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39 | 39 | XKBOPTIONS=${XKBOPTIONS:=""} |
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40 | 40 | EXPANDROOT=${EXPANDROOT:=true} |
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41 | 41 | |
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42 | 42 | # Network settings |
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43 | 43 | ENABLE_DHCP=${ENABLE_DHCP:=true} |
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44 | 44 | # NET_* settings are ignored when ENABLE_DHCP=true |
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45 | 45 | # NET_ADDRESS is an IPv4 or IPv6 address and its prefix, separated by "/" |
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46 | 46 | NET_ADDRESS=${NET_ADDRESS:=""} |
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47 | 47 | NET_GATEWAY=${NET_GATEWAY:=""} |
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48 | 48 | NET_DNS_1=${NET_DNS_1:=""} |
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49 | 49 | NET_DNS_2=${NET_DNS_2:=""} |
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50 | 50 | NET_DNS_DOMAINS=${NET_DNS_DOMAINS:=""} |
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51 | 51 | NET_NTP_1=${NET_NTP_1:=""} |
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52 | 52 | NET_NTP_2=${NET_NTP_2:=""} |
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53 | 53 | |
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54 | 54 | # APT settings |
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55 | 55 | APT_PROXY=${APT_PROXY:=""} |
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56 | 56 | APT_SERVER=${APT_SERVER:="ftp.debian.org"} |
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57 | 57 | |
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58 | 58 | # Feature settings |
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59 | 59 | ENABLE_CONSOLE=${ENABLE_CONSOLE:=true} |
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60 | 60 | ENABLE_IPV6=${ENABLE_IPV6:=true} |
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61 | 61 | ENABLE_SSHD=${ENABLE_SSHD:=true} |
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62 | 62 | ENABLE_SOUND=${ENABLE_SOUND:=true} |
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63 | 63 | ENABLE_DBUS=${ENABLE_DBUS:=true} |
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64 | 64 | ENABLE_HWRANDOM=${ENABLE_HWRANDOM:=true} |
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65 | 65 | ENABLE_MINGPU=${ENABLE_MINGPU:=false} |
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66 | 66 | ENABLE_XORG=${ENABLE_XORG:=false} |
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67 | 67 | ENABLE_WM=${ENABLE_WM:=""} |
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68 | 68 | ENABLE_RSYSLOG=${ENABLE_RSYSLOG:=true} |
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69 | 69 | ENABLE_USER=${ENABLE_USER:=true} |
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70 | 70 | ENABLE_ROOT=${ENABLE_ROOT:=false} |
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71 | 71 | ENABLE_ROOT_SSH=${ENABLE_ROOT_SSH:=false} |
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72 | 72 | |
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73 | 73 | # Advanced settings |
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74 | 74 | ENABLE_MINBASE=${ENABLE_MINBASE:=false} |
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75 | 75 | ENABLE_UBOOT=${ENABLE_UBOOT:=false} |
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76 | 76 | ENABLE_FBTURBO=${ENABLE_FBTURBO:=false} |
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77 | 77 | ENABLE_HARDNET=${ENABLE_HARDNET:=false} |
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78 | 78 | ENABLE_IPTABLES=${ENABLE_IPTABLES:=false} |
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79 | 79 | |
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80 | 80 | # Kernel compilation settings |
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81 | 81 | BUILD_KERNEL=${BUILD_KERNEL:=false} |
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82 | 82 | KERNEL_HEADERS=${KERNEL_HEADERS:=true} |
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83 | 83 | |
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84 | 84 | # Image chroot path |
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85 | 85 | R=${BUILDDIR}/chroot |
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86 | 86 | CHROOT_SCRIPTS=${CHROOT_SCRIPTS:=""} |
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87 | 87 | |
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88 | 88 | # Packages required for bootstrapping |
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89 | 89 | REQUIRED_PACKAGES="debootstrap debian-archive-keyring qemu-user-static binfmt-support dosfstools rsync bmap-tools whois git-core" |
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90 | 90 | |
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91 | 91 | # Missing packages that need to be installed |
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92 | 92 | MISSING_PACKAGES="" |
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93 | 93 | |
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94 | 94 | # Packages required in the chroot build environment |
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95 | 95 | APT_INCLUDES=${APT_INCLUDES:=""} |
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96 | 96 | APT_INCLUDES="${APT_INCLUDES},apt-transport-https,ca-certificates,debian-archive-keyring,dialog,sudo" |
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97 | 97 | |
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98 | 98 | set +x |
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99 | 99 | |
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100 | 100 | # Are we running as root? |
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101 | 101 | if [ "$(id -u)" -ne "0" ] ; then |
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102 | 102 | echo "this script must be executed with root privileges" |
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103 | 103 | exit 1 |
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104 | 104 | fi |
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105 | 105 | |
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106 | 106 | # Add packages required for kernel cross compilation |
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107 | 107 | if [ "$BUILD_KERNEL" = true ] ; then |
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108 | 108 | REQUIRED_PACKAGES="${REQUIRED_PACKAGES} crossbuild-essential-armhf" |
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109 | 109 | fi |
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110 | 110 | |
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111 | 111 | # Check if all required packages are installed |
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112 | 112 | for package in $REQUIRED_PACKAGES ; do |
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113 | 113 | if [ "`dpkg-query -W -f='${Status}' $package`" != "install ok installed" ] ; then |
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114 | 114 | MISSING_PACKAGES="$MISSING_PACKAGES $package" |
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115 | 115 | fi |
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116 | 116 | done |
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117 | 117 | |
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118 | 118 | # Ask if missing packages should get installed right now |
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119 | 119 | if [ -n "$MISSING_PACKAGES" ] ; then |
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120 | 120 | echo "the following packages needed by this script are not installed:" |
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121 | 121 | echo "$MISSING_PACKAGES" |
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122 | 122 | |
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123 | 123 | echo -n "\ndo you want to install the missing packages right now? [y/n] " |
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124 | 124 | read confirm |
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125 | 125 | if [ "$confirm" != "y" ] ; then |
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126 | 126 | exit 1 |
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127 | 127 | fi |
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128 | 128 | fi |
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129 | 129 | |
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130 | 130 | # Make sure all required packages are installed |
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131 | 131 | apt-get -qq -y install ${REQUIRED_PACKAGES} |
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132 | 132 | |
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133 | 133 | # Don't clobber an old build |
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134 | 134 | if [ -e "$BUILDDIR" ]; then |
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135 | 135 | echo "directory $BUILDDIR already exists, not proceeding" |
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136 | 136 | exit 1 |
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137 | 137 | fi |
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138 | 138 | |
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139 | 139 | set -x |
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140 | 140 | |
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141 | 141 | # Call "cleanup" function on various signals and errors |
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142 | 142 | trap cleanup 0 1 2 3 6 |
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143 | 143 | |
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144 | 144 | # Set up chroot directory |
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145 | 145 | mkdir -p $R |
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146 | 146 | |
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147 | 147 | # Add required packages for the minbase installation |
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148 | 148 | if [ "$ENABLE_MINBASE" = true ] ; then |
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149 | 149 | APT_INCLUDES="${APT_INCLUDES},vim-tiny,netbase,net-tools" |
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150 | 150 | else |
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151 | 151 | APT_INCLUDES="${APT_INCLUDES},locales,keyboard-configuration,console-setup" |
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152 | 152 | fi |
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153 | 153 | |
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154 | 154 | # Add parted package, required to get partprobe utility |
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155 | 155 | if [ "$EXPANDROOT" = true ] ; then |
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156 | 156 | APT_INCLUDES="${APT_INCLUDES},parted" |
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157 | 157 | fi |
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158 | 158 | |
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159 | 159 | # Add dbus package, recommended if using systemd |
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160 | 160 | if [ "$ENABLE_DBUS" = true ] ; then |
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161 | 161 | APT_INCLUDES="${APT_INCLUDES},dbus" |
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162 | 162 | fi |
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163 | 163 | |
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164 | 164 | # Add iptables IPv4/IPv6 package |
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165 | 165 | if [ "$ENABLE_IPTABLES" = true ] ; then |
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166 | 166 | APT_INCLUDES="${APT_INCLUDES},iptables" |
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167 | 167 | fi |
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168 | 168 | |
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169 | 169 | # Add openssh server package |
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170 | 170 | if [ "$ENABLE_SSHD" = true ] ; then |
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171 | 171 | APT_INCLUDES="${APT_INCLUDES},openssh-server" |
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172 | 172 | fi |
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173 | 173 | |
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174 | 174 | # Add alsa-utils package |
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175 | 175 | if [ "$ENABLE_SOUND" = true ] ; then |
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176 | 176 | APT_INCLUDES="${APT_INCLUDES},alsa-utils" |
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177 | 177 | fi |
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178 | 178 | |
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179 | 179 | # Add rng-tools package |
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180 | 180 | if [ "$ENABLE_HWRANDOM" = true ] ; then |
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181 | 181 | APT_INCLUDES="${APT_INCLUDES},rng-tools" |
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182 | 182 | fi |
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183 | 183 | |
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184 | 184 | if [ "$ENABLE_USER" = true ]; then |
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185 | 185 | APT_INCLUDES="${APT_INCLUDES},sudo" |
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186 | 186 | fi |
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187 | 187 | |
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188 | 188 | # Add fbturbo video driver |
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189 | 189 | if [ "$ENABLE_FBTURBO" = true ] ; then |
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190 | 190 | # Enable xorg package dependencies |
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191 | 191 | ENABLE_XORG=true |
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192 | 192 | fi |
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193 | 193 | |
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194 | 194 | # Add user defined window manager package |
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195 | 195 | if [ -n "$ENABLE_WM" ] ; then |
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196 | 196 | APT_INCLUDES="${APT_INCLUDES},${ENABLE_WM}" |
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197 | 197 | |
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198 | 198 | # Enable xorg package dependencies |
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199 | 199 | ENABLE_XORG=true |
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200 | 200 | fi |
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201 | 201 | |
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202 | 202 | # Add xorg package |
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203 | 203 | if [ "$ENABLE_XORG" = true ] ; then |
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204 | 204 | APT_INCLUDES="${APT_INCLUDES},xorg" |
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205 | 205 | fi |
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206 | 206 | |
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207 | 207 | ## Main bootstrap |
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208 | 208 | for i in bootstrap.d/*.sh; do |
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209 | 209 | . $i |
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210 | 210 | done |
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211 | 211 | |
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212 | for i in custom.d/*.sh; do | |
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213 | . $i | |
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214 | done | |
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212 | ## Custom bootstrap scripts | |
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213 | if [ -d "custom.d" ]; then | |
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214 | for i in custom.d/*.sh; do | |
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215 | . $i | |
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216 | done | |
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217 | fi | |
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215 | 218 | |
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216 | 219 | # Invoke custom scripts |
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217 | 220 | if [ -n "${CHROOT_SCRIPTS}" ]; then |
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218 | 221 | cp -r "${CHROOT_SCRIPTS}" "${R}/chroot_scripts" |
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219 | 222 | LANG=C chroot $R bash -c 'for SCRIPT in /chroot_scripts/*; do if [ -f $SCRIPT -a -x $SCRIPT ]; then $SCRIPT; fi done;' |
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220 | 223 | rm -rf "${R}/chroot_scripts" |
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221 | 224 | fi |
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222 | 225 | |
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223 | 226 | ## Cleanup |
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224 | 227 | chroot_exec apt-get -y clean |
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225 | 228 | chroot_exec apt-get -y autoclean |
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226 | 229 | chroot_exec apt-get -y autoremove |
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227 | 230 | |
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228 | 231 | # Unmount mounted filesystems |
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229 | 232 | umount -l $R/proc |
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230 | 233 | umount -l $R/sys |
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231 | 234 | |
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232 | 235 | # Clean up files |
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233 | 236 | rm -f $R/etc/apt/sources.list.save |
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234 | 237 | rm -f $R/etc/resolvconf/resolv.conf.d/original |
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235 | 238 | rm -rf $R/run |
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236 | 239 | mkdir -p $R/run |
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237 | 240 | rm -f $R/etc/*- |
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238 | 241 | rm -f $R/root/.bash_history |
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239 | 242 | rm -rf $R/tmp/* |
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240 | 243 | rm -f $R/var/lib/urandom/random-seed |
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241 | 244 | [ -L $R/var/lib/dbus/machine-id ] || rm -f $R/var/lib/dbus/machine-id |
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242 | 245 | rm -f $R/etc/machine-id |
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243 | 246 | rm -fr $R/etc/apt/apt.conf.d/10proxy |
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244 | 247 | rm -f $R/etc/resolv.conf |
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245 | 248 | |
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246 | 249 | # Calculate size of the chroot directory in KB |
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247 | 250 | CHROOT_SIZE=$(expr `du -s $R | awk '{ print $1 }'`) |
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248 | 251 | |
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249 | 252 | # Calculate the amount of needed 512 Byte sectors |
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250 | 253 | TABLE_SECTORS=$(expr 1 \* 1024 \* 1024 \/ 512) |
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251 | 254 | BOOT_SECTORS=$(expr 64 \* 1024 \* 1024 \/ 512) |
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252 | 255 | ROOT_OFFSET=$(expr ${TABLE_SECTORS} + ${BOOT_SECTORS}) |
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253 | 256 | |
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254 | 257 | # The root partition is EXT4 |
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255 | 258 | # This means more space than the actual used space of the chroot is used. |
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256 | 259 | # As overhead for journaling and reserved blocks 20% are added. |
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257 | 260 | ROOT_SECTORS=$(expr $(expr ${CHROOT_SIZE} + ${CHROOT_SIZE} \/ 100 \* 20) \* 1024 \/ 512) |
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258 | 261 | |
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259 | 262 | # Calculate required image size in 512 Byte sectors |
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260 | 263 | IMAGE_SECTORS=$(expr ${TABLE_SECTORS} + ${BOOT_SECTORS} + ${ROOT_SECTORS}) |
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261 | 264 | |
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262 | 265 | # Prepare date string for image file name |
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263 | 266 | DATE="$(date +%Y-%m-%d)" |
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264 | 267 | |
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265 | 268 | # Prepare image file |
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266 | 269 | dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}.img" bs=512 count=${TABLE_SECTORS} |
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267 | 270 | dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}.img" bs=512 count=0 seek=${IMAGE_SECTORS} |
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268 | 271 | |
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269 | 272 | # Write partition table |
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270 | 273 | sfdisk -q -f "$BASEDIR/${DATE}-debian-${RELEASE}.img" <<EOM |
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271 | 274 | unit: sectors |
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272 | 275 | |
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273 | 276 | 1 : start= ${TABLE_SECTORS}, size= ${BOOT_SECTORS}, Id= c, bootable |
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274 | 277 | 2 : start= ${ROOT_OFFSET}, size= ${ROOT_SECTORS}, Id=83 |
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275 | 278 | 3 : start= 0, size= 0, Id= 0 |
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276 | 279 | 4 : start= 0, size= 0, Id= 0 |
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277 | 280 | EOM |
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278 | 281 | |
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279 | 282 | # Set up temporary loop devices and build filesystems |
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280 | 283 | VFAT_LOOP="$(losetup -o 1M --sizelimit 64M -f --show $BASEDIR/${DATE}-debian-${RELEASE}.img)" |
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281 | 284 | EXT4_LOOP="$(losetup -o 65M -f --show $BASEDIR/${DATE}-debian-${RELEASE}.img)" |
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282 | 285 | mkfs.vfat "$VFAT_LOOP" |
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283 | 286 | mkfs.ext4 "$EXT4_LOOP" |
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284 | 287 | |
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285 | 288 | # Mount the temporary loop devices |
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286 | 289 | mkdir -p "$BUILDDIR/mount" |
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287 | 290 | mount "$EXT4_LOOP" "$BUILDDIR/mount" |
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288 | 291 | |
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289 | 292 | mkdir -p "$BUILDDIR/mount/boot/firmware" |
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290 | 293 | mount "$VFAT_LOOP" "$BUILDDIR/mount/boot/firmware" |
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291 | 294 | |
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292 | 295 | # Copy all files from the chroot to the loop device mount point directory |
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293 | 296 | rsync -a "$R/" "$BUILDDIR/mount/" |
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294 | 297 | |
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295 | 298 | # Unmount all temporary loop devices and mount points |
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296 | 299 | cleanup |
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297 | 300 | |
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298 | 301 | # (optinal) create block map file for "bmaptool" |
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299 | 302 | bmaptool create -o "$BASEDIR/${DATE}-debian-${RELEASE}.bmap" "$BASEDIR/${DATE}-debian-${RELEASE}.img" |
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300 | 303 | |
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301 | 304 | # Image was successfully created |
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302 | 305 | echo "$BASEDIR/${DATE}-debian-${RELEASE}.img (${IMAGE_SIZE})" ": successfully created" |
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