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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 2015-2016 |
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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 | # Copyright (C) 2015 Jan Wagner <mail@jwagner.eu> |
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14 | 14 | # |
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15 | 15 | # Big thanks for patches and enhancements by 10+ github contributors! |
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16 | 16 | ######################################################################## |
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17 | 17 | |
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18 | 18 | # Are we running as root? |
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19 | 19 | if [ "$(id -u)" -ne "0" ] ; then |
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20 | 20 | echo "error: this script must be executed with root privileges!" |
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21 | 21 | exit 1 |
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22 | 22 | fi |
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23 | 23 | |
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24 | 24 | # Check if ./functions.sh script exists |
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25 | 25 | if [ ! -r "./functions.sh" ] ; then |
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26 | 26 | echo "error: './functions.sh' required script not found!" |
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27 | 27 | exit 1 |
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28 | 28 | fi |
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29 | 29 | |
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30 | 30 | # Load utility functions |
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31 | 31 | . ./functions.sh |
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32 | 32 | |
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33 | 33 | # Introduce settings |
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34 | 34 | set -e |
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35 | 35 | echo -n -e "\n#\n# RPi2 Bootstrap Settings\n#\n" |
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36 | 36 | set -x |
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37 | 37 | |
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38 | 38 | # Debian release |
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39 | 39 | RELEASE=${RELEASE:=jessie} |
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40 | 40 | KERNEL_ARCH=${KERNEL_ARCH:=arm} |
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41 | 41 | RELEASE_ARCH=${RELEASE_ARCH:=armhf} |
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42 | 42 | CROSS_COMPILE=${CROSS_COMPILE:=arm-linux-gnueabihf-} |
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43 | 43 | COLLABORA_KERNEL=${COLLABORA_KERNEL:=3.18.0-trunk-rpi2} |
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44 | 44 | KERNEL_DEFCONFIG=${KERNEL_DEFCONFIG:=bcm2709_defconfig} |
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45 | 45 | KERNEL_IMAGE=${KERNEL_IMAGE:=kernel7.img} |
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46 | 46 | DTB_FILE=${DTB_FILE:=bcm2709-rpi-2-b.dtb} |
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47 | 47 | UBOOT_CONFIG=${UBOOT_CONFIG:=rpi_2_defconfig} |
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48 | 48 | QEMU_BINARY=${QEMU_BINARY:=/usr/bin/qemu-arm-static} |
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49 | 49 | |
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50 | 50 | # Build directories |
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51 | 51 | BASEDIR="$(pwd)/images/${RELEASE}" |
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52 | 52 | BUILDDIR="${BASEDIR}/build" |
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53 | 53 | |
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54 | 54 | # Chroot directories |
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55 | 55 | R="${BUILDDIR}/chroot" |
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56 | 56 | ETCDIR="${R}/etc" |
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57 | 57 | BOOTDIR="${R}/boot/firmware" |
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58 | 58 | KERNELDIR="${R}/usr/src/linux" |
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59 | 59 | |
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60 | 60 | # Firmware directory: Blank if download from github |
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61 | 61 | FIRMWAREDIR=${FIRMWAREDIR:=""} |
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62 | 62 | |
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63 | 63 | # General settings |
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64 | 64 | HOSTNAME=${HOSTNAME:=rpi2-${RELEASE}} |
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65 | 65 | PASSWORD=${PASSWORD:=raspberry} |
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66 | 66 | DEFLOCAL=${DEFLOCAL:="en_US.UTF-8"} |
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67 | 67 | TIMEZONE=${TIMEZONE:="Europe/Berlin"} |
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68 | 68 | EXPANDROOT=${EXPANDROOT:=true} |
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69 | 69 | |
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70 | 70 | # Keyboard settings |
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71 | 71 | XKB_MODEL=${XKB_MODEL:=""} |
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72 | 72 | XKB_LAYOUT=${XKB_LAYOUT:=""} |
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73 | 73 | XKB_VARIANT=${XKB_VARIANT:=""} |
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74 | 74 | XKB_OPTIONS=${XKB_OPTIONS:=""} |
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75 | 75 | |
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76 | 76 | # Network settings (DHCP) |
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77 | 77 | ENABLE_DHCP=${ENABLE_DHCP:=true} |
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78 | 78 | |
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79 | 79 | # Network settings (static) |
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80 | 80 | NET_ADDRESS=${NET_ADDRESS:=""} |
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81 | 81 | NET_GATEWAY=${NET_GATEWAY:=""} |
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82 | 82 | NET_DNS_1=${NET_DNS_1:=""} |
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83 | 83 | NET_DNS_2=${NET_DNS_2:=""} |
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84 | 84 | NET_DNS_DOMAINS=${NET_DNS_DOMAINS:=""} |
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85 | 85 | NET_NTP_1=${NET_NTP_1:=""} |
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86 | 86 | NET_NTP_2=${NET_NTP_2:=""} |
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87 | 87 | |
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88 | 88 | # APT settings |
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89 | 89 | APT_PROXY=${APT_PROXY:=""} |
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90 | 90 | APT_SERVER=${APT_SERVER:="ftp.debian.org"} |
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91 | 91 | |
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92 | 92 | # Feature settings |
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93 | 93 | ENABLE_CONSOLE=${ENABLE_CONSOLE:=true} |
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94 | 94 | ENABLE_IPV6=${ENABLE_IPV6:=true} |
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95 | 95 | ENABLE_SSHD=${ENABLE_SSHD:=true} |
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96 | 96 | ENABLE_SOUND=${ENABLE_SOUND:=true} |
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97 | 97 | ENABLE_DBUS=${ENABLE_DBUS:=true} |
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98 | 98 | ENABLE_HWRANDOM=${ENABLE_HWRANDOM:=true} |
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99 | 99 | ENABLE_MINGPU=${ENABLE_MINGPU:=false} |
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100 | 100 | ENABLE_XORG=${ENABLE_XORG:=false} |
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101 | 101 | ENABLE_WM=${ENABLE_WM:=""} |
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102 | 102 | ENABLE_RSYSLOG=${ENABLE_RSYSLOG:=true} |
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103 | 103 | ENABLE_USER=${ENABLE_USER:=true} |
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104 | 104 | USER_NAME=${USER_NAME:="pi"} |
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105 | 105 | ENABLE_ROOT=${ENABLE_ROOT:=false} |
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106 | 106 | ENABLE_ROOT_SSH=${ENABLE_ROOT_SSH:=false} |
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107 | 107 | |
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108 | 108 | # Advanced settings |
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109 | 109 | ENABLE_MINBASE=${ENABLE_MINBASE:=false} |
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110 | 110 | ENABLE_REDUCE=${ENABLE_REDUCE:=flase} |
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111 | 111 | ENABLE_UBOOT=${ENABLE_UBOOT:=false} |
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112 | 112 | ENABLE_FBTURBO=${ENABLE_FBTURBO:=false} |
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113 | 113 | ENABLE_HARDNET=${ENABLE_HARDNET:=false} |
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114 | 114 | ENABLE_IPTABLES=${ENABLE_IPTABLES:=false} |
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115 | 115 | ENABLE_SPLITFS=${ENABLE_SPLITFS:=false} |
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116 | 116 | ENABLE_INITRAMFS=${ENABLE_INITRAMFS:=false} |
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117 | 117 | |
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118 | 118 | # Kernel compilation settings |
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119 | 119 | BUILD_KERNEL=${BUILD_KERNEL:=false} |
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120 | 120 | KERNEL_REDUCE=${KERNEL_REDUCE:=false} |
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121 | 121 | KERNEL_THREADS=${KERNEL_THREADS:=1} |
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122 | 122 | KERNEL_HEADERS=${KERNEL_HEADERS:=true} |
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123 | 123 | KERNEL_MENUCONFIG=${KERNEL_MENUCONFIG:=false} |
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124 | 124 | KERNEL_REMOVESRC=${KERNEL_REMOVESRC:=true} |
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125 | 125 | |
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126 | 126 | # Kernel compilation from source directory settings |
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127 | 127 | KERNELSRC_DIR=${KERNELSRC_DIR:=""} |
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128 | 128 | KERNELSRC_CLEAN=${KERNELSRC_CLEAN:=false} |
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129 | 129 | KERNELSRC_CONFIG=${KERNELSRC_CONFIG:=true} |
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130 | 130 | KERNELSRC_PREBUILT=${KERNELSRC_PREBUILT:=false} |
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131 | 131 | |
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132 | 132 | # Reduce disk usage settings |
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133 | 133 | REDUCE_APT=${REDUCE_APT:=true} |
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134 | 134 | REDUCE_DOC=${REDUCE_DOC:=true} |
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135 | 135 | REDUCE_MAN=${REDUCE_MAN:=true} |
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136 | 136 | REDUCE_VIM=${REDUCE_VIM:=false} |
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137 | 137 | REDUCE_BASH=${REDUCE_BASH:=false} |
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138 | 138 | REDUCE_HWDB=${REDUCE_HWDB:=true} |
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139 | 139 | REDUCE_SSHD=${REDUCE_SSHD:=true} |
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140 | 140 | REDUCE_LOCALE=${REDUCE_LOCALE:=true} |
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141 | 141 | |
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142 | 142 | # Encrypted filesystem settings |
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143 | 143 | ENABLE_CRYPTFS=${ENABLE_CRYPTFS:=false} |
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144 | 144 | CRYPTFS_PASSWORD=${CRYPTFS_PASSWORD:=""} |
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145 | 145 | CRYPTFS_MAPPING=${CRYPTFS_MAPPING:="secure"} |
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146 | 146 | CRYPTFS_CIPHER=${CRYPTFS_CIPHER:="aes-xts-plain64:sha512"} |
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147 | 147 | CRYPTFS_XTSKEYSIZE=${CRYPTFS_XTSKEYSIZE:=512} |
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148 | 148 | |
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149 | 149 | # Stop the Crypto Wars |
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150 | 150 | DISABLE_FBI=${DISABLE_FBI:=false} |
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151 | 151 | |
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152 | 152 | # Chroot scripts directory |
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153 | 153 | CHROOT_SCRIPTS=${CHROOT_SCRIPTS:=""} |
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154 | 154 | |
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155 | 155 | # Packages required in the chroot build environment |
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156 | 156 | APT_INCLUDES=${APT_INCLUDES:=""} |
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157 | 157 | APT_INCLUDES="${APT_INCLUDES},apt-transport-https,apt-utils,ca-certificates,debian-archive-keyring,dialog,sudo" |
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158 | 158 | |
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159 | 159 | # Packages required for bootstrapping |
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160 | 160 | REQUIRED_PACKAGES="debootstrap debian-archive-keyring qemu-user-static binfmt-support dosfstools rsync bmap-tools whois git" |
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161 | 161 | MISSING_PACKAGES="" |
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162 | 162 | |
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163 | 163 | set +x |
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164 | 164 | |
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165 | 165 | # Add packages required for kernel cross compilation |
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166 | 166 | if [ "$BUILD_KERNEL" = true ] ; then |
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167 | 167 | REQUIRED_PACKAGES="${REQUIRED_PACKAGES} crossbuild-essential-armhf" |
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168 | 168 | fi |
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169 | 169 | |
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170 | 170 | # Add libncurses5 to enable kernel menuconfig |
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171 | 171 | if [ "$KERNEL_MENUCONFIG" = true ] ; then |
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172 | 172 | REQUIRED_PACKAGES="${REQUIRED_PACKAGES} libncurses5-dev" |
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173 | 173 | fi |
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174 | 174 | |
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175 | 175 | # Stop the Crypto Wars |
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176 | 176 | if [ "$DISABLE_FBI" = true ] ; then |
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177 | 177 | ENABLE_CRYPTFS=true |
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178 | 178 | fi |
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179 | 179 | |
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180 | 180 | # Add cryptsetup package to enable filesystem encryption |
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181 | 181 | if [ "$ENABLE_CRYPTFS" = true ] && [ "$BUILD_KERNEL" = true ] ; then |
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182 | 182 | REQUIRED_PACKAGES="${REQUIRED_PACKAGES} cryptsetup" |
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183 | 183 | APT_INCLUDES="${APT_INCLUDES},cryptsetup" |
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184 | 184 | |
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185 | 185 | if [ -z "$CRYPTFS_PASSWORD" ] ; then |
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186 | 186 | echo "error: no password defined (CRYPTFS_PASSWORD)!" |
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187 | 187 | exit 1 |
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188 | 188 | fi |
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189 | 189 | ENABLE_INITRAMFS=true |
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190 | 190 | fi |
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191 | 191 | |
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192 | 192 | # Add initramfs generation tools |
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193 | 193 | if [ "$ENABLE_INITRAMFS" = true ] && [ "$BUILD_KERNEL" = true ] ; then |
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194 | 194 | APT_INCLUDES="${APT_INCLUDES},initramfs-tools" |
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195 | 195 | fi |
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196 | 196 | |
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197 | 197 | # Check if all required packages are installed on the build system |
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198 | 198 | for package in $REQUIRED_PACKAGES ; do |
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199 | 199 | if [ "`dpkg-query -W -f='${Status}' $package`" != "install ok installed" ] ; then |
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200 | 200 | MISSING_PACKAGES="${MISSING_PACKAGES} $package" |
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201 | 201 | fi |
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202 | 202 | done |
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203 | 203 | |
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204 | 204 | # Ask if missing packages should get installed right now |
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205 | 205 | if [ -n "$MISSING_PACKAGES" ] ; then |
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206 | 206 | echo "the following packages needed by this script are not installed:" |
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207 | 207 | echo "$MISSING_PACKAGES" |
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208 | 208 | |
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209 | 209 | echo -n "\ndo you want to install the missing packages right now? [y/n] " |
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210 | 210 | read confirm |
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211 | 211 | [ "$confirm" != "y" ] && exit 1 |
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212 | 212 | fi |
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213 | 213 | |
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214 | 214 | # Make sure all required packages are installed |
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215 | 215 | apt-get -qq -y install ${REQUIRED_PACKAGES} |
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216 | 216 | |
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217 | 217 | # Check if ./bootstrap.d directory exists |
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218 | 218 | if [ ! -d "./bootstrap.d/" ] ; then |
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219 | 219 | echo "error: './bootstrap.d' required directory not found!" |
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220 | 220 | exit 1 |
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221 | 221 | fi |
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222 | 222 | |
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223 | 223 | # Check if ./files directory exists |
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224 | 224 | if [ ! -d "./files/" ] ; then |
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225 | 225 | echo "error: './files' required directory not found!" |
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226 | 226 | exit 1 |
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227 | 227 | fi |
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228 | 228 | |
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229 | 229 | # Check if specified KERNELSRC_DIR directory exists |
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230 | 230 | if [ -n "$KERNELSRC_DIR" ] && [ ! -d "$KERNELSRC_DIR" ] ; then |
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231 | 231 | echo "error: '${KERNELSRC_DIR}' specified directory not found (KERNELSRC_DIR)!" |
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232 | 232 | exit 1 |
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233 | 233 | fi |
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234 | 234 | |
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235 | 235 | # Check if specified CHROOT_SCRIPTS directory exists |
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236 | 236 | if [ -n "$CHROOT_SCRIPTS" ] && [ ! -d "$CHROOT_SCRIPTS" ] ; then |
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237 | 237 | echo "error: ${CHROOT_SCRIPTS} specified directory not found (CHROOT_SCRIPTS)!" |
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238 | 238 | exit 1 |
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239 | 239 | fi |
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240 | 240 | |
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241 | 241 | # Check if specified device mapping already exists (will be used by cryptsetup) |
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242 | 242 | if [ -r "/dev/mapping/${CRYPTFS_MAPPING}" ] ; then |
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243 | 243 | echo "error: mapping /dev/mapping/${CRYPTFS_MAPPING} already exists, not proceeding" |
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244 | 244 | exit 1 |
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245 | 245 | fi |
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246 | 246 | |
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247 | 247 | # Don't clobber an old build |
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248 | 248 | if [ -e "$BUILDDIR" ] ; then |
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249 | 249 | echo "error: directory ${BUILDDIR} already exists, not proceeding" |
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250 | 250 | exit 1 |
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251 | 251 | fi |
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252 | 252 | |
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253 | 253 | # Setup chroot directory |
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254 | 254 | mkdir -p "${R}" |
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255 | 255 | |
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256 | 256 | # Check if build directory has enough of free disk space >512MB |
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257 | 257 | if [ "$(df --output=avail ${BUILDDIR} | sed "1d")" -le "524288" ] ; then |
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258 | 258 | echo "error: ${BUILDDIR} not enough space left to generate the output image!" |
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259 | 259 | exit 1 |
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260 | 260 | fi |
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261 | 261 | |
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262 | 262 | set -x |
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263 | 263 | |
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264 | 264 | # Call "cleanup" function on various signals and errors |
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265 | 265 | trap cleanup 0 1 2 3 6 |
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266 | 266 | |
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267 | 267 | # Add required packages for the minbase installation |
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268 |
if [ "$ENABLE_MINBASE" = true ] |
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268 | if [ "$ENABLE_MINBASE" = true ] ; then | |
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269 | 269 | APT_INCLUDES="${APT_INCLUDES},vim-tiny,netbase,net-tools,ifupdown" |
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270 | else | |
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270 | fi | |
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271 | ||
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272 | # Add required locales packages | |
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273 | if [ "$DEFLOCAL" != "en_US.UTF-8" ] ; then | |
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271 | 274 | APT_INCLUDES="${APT_INCLUDES},locales,keyboard-configuration,console-setup" |
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272 | 275 | fi |
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273 | 276 | |
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274 | 277 | # Add parted package, required to get partprobe utility |
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275 | 278 | if [ "$EXPANDROOT" = true ] ; then |
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276 | 279 | APT_INCLUDES="${APT_INCLUDES},parted" |
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277 | 280 | fi |
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278 | 281 | |
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279 | 282 | # Add dbus package, recommended if using systemd |
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280 | 283 | if [ "$ENABLE_DBUS" = true ] ; then |
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281 | 284 | APT_INCLUDES="${APT_INCLUDES},dbus" |
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282 | 285 | fi |
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283 | 286 | |
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284 | 287 | # Add iptables IPv4/IPv6 package |
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285 | 288 | if [ "$ENABLE_IPTABLES" = true ] ; then |
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286 | 289 | APT_INCLUDES="${APT_INCLUDES},iptables" |
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287 | 290 | fi |
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288 | 291 | |
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289 | 292 | # Add openssh server package |
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290 | 293 | if [ "$ENABLE_SSHD" = true ] ; then |
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291 | 294 | APT_INCLUDES="${APT_INCLUDES},openssh-server" |
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292 | 295 | fi |
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293 | 296 | |
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294 | 297 | # Add alsa-utils package |
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295 | 298 | if [ "$ENABLE_SOUND" = true ] ; then |
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296 | 299 | APT_INCLUDES="${APT_INCLUDES},alsa-utils" |
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297 | 300 | fi |
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298 | 301 | |
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299 | 302 | # Add rng-tools package |
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300 | 303 | if [ "$ENABLE_HWRANDOM" = true ] ; then |
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301 | 304 | APT_INCLUDES="${APT_INCLUDES},rng-tools" |
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302 | 305 | fi |
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303 | 306 | |
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304 | 307 | # Add fbturbo video driver |
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305 | 308 | if [ "$ENABLE_FBTURBO" = true ] ; then |
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306 | 309 | # Enable xorg package dependencies |
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307 | 310 | ENABLE_XORG=true |
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308 | 311 | fi |
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309 | 312 | |
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310 | 313 | # Add user defined window manager package |
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311 | 314 | if [ -n "$ENABLE_WM" ] ; then |
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312 | 315 | APT_INCLUDES="${APT_INCLUDES},${ENABLE_WM}" |
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313 | 316 | |
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314 | 317 | # Enable xorg package dependencies |
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315 | 318 | ENABLE_XORG=true |
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316 | 319 | fi |
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317 | 320 | |
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318 | 321 | # Add xorg package |
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319 | 322 | if [ "$ENABLE_XORG" = true ] ; then |
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320 | 323 | APT_INCLUDES="${APT_INCLUDES},xorg" |
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321 | 324 | fi |
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322 | 325 | |
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323 | 326 | # Replace selected packages with smaller clones |
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324 | 327 | if [ "$ENABLE_REDUCE" = true ] ; then |
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325 | 328 | # Add levee package instead of vim-tiny |
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326 | 329 | if [ "$REDUCE_VIM" = true ] ; then |
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327 | 330 | APT_INCLUDES="$(echo ${APT_INCLUDES} | sed "s/vim-tiny/levee/")" |
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328 | 331 | fi |
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329 | 332 | |
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330 | 333 | # Add dropbear package instead of openssh-server |
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331 | 334 | if [ "$REDUCE_SSHD" = true ] ; then |
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332 | 335 | APT_INCLUDES="$(echo ${APT_INCLUDES} | sed "s/openssh-server/dropbear/")" |
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333 | 336 | fi |
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334 | 337 | fi |
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335 | 338 | |
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336 | 339 | # Configure kernel sources if no KERNELSRC_DIR |
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337 | 340 | if [ "$BUILD_KERNEL" = true ] && [ -z "$KERNELSRC_DIR" ] ; then |
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338 | 341 | KERNELSRC_CONFIG=true |
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339 | 342 | fi |
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340 | 343 | |
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341 | 344 | # Configure reduced kernel |
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342 | 345 | if [ "$KERNEL_REDUCE" = true ] ; then |
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343 | 346 | KERNELSRC_CONFIG=false |
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344 | 347 | fi |
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345 | 348 | |
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346 | 349 | # Execute bootstrap scripts |
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347 | 350 | for SCRIPT in bootstrap.d/*.sh; do |
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348 | 351 | head -n 3 "$SCRIPT" |
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349 | 352 | . "$SCRIPT" |
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350 | 353 | done |
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351 | 354 | |
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352 | 355 | ## Execute custom bootstrap scripts |
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353 | 356 | if [ -d "custom.d" ] ; then |
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354 | 357 | for SCRIPT in custom.d/*.sh; do |
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355 | 358 | . "$SCRIPT" |
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356 | 359 | done |
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357 | 360 | fi |
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358 | 361 | |
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359 | 362 | # Execute custom scripts inside the chroot |
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360 | 363 | if [ -n "$CHROOT_SCRIPTS" ] && [ -d "$CHROOT_SCRIPTS" ] ; then |
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361 | 364 | cp -r "${CHROOT_SCRIPTS}" "${R}/chroot_scripts" |
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362 | 365 | chroot_exec /bin/bash -x <<'EOF' |
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363 | 366 | for SCRIPT in /chroot_scripts/* ; do |
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364 | 367 | if [ -f $SCRIPT -a -x $SCRIPT ] ; then |
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365 | 368 | $SCRIPT |
|
|
366 | 369 | fi |
|
|
367 | 370 | done |
|
|
368 | 371 | EOF |
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369 | 372 | rm -rf "${R}/chroot_scripts" |
|
|
370 | 373 | fi |
|
|
371 | 374 | |
|
|
372 | 375 | # Remove apt-utils |
|
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373 | 376 | chroot_exec apt-get purge -qq -y --force-yes apt-utils |
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374 | 377 | |
|
|
375 | 378 | # Generate required machine-id |
|
|
376 | 379 | MACHINE_ID=$(dbus-uuidgen) |
|
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377 | 380 | echo -n "${MACHINE_ID}" > "${R}/var/lib/dbus/machine-id" |
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378 | 381 | echo -n "${MACHINE_ID}" > "${ETCDIR}/machine-id" |
|
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379 | 382 | |
|
|
380 | 383 | # APT Cleanup |
|
|
381 | 384 | chroot_exec apt-get -y clean |
|
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382 | 385 | chroot_exec apt-get -y autoclean |
|
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383 | 386 | chroot_exec apt-get -y autoremove |
|
|
384 | 387 | |
|
|
385 | 388 | # Unmount mounted filesystems |
|
|
386 | 389 | umount -l "${R}/proc" |
|
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387 | 390 | umount -l "${R}/sys" |
|
|
388 | 391 | |
|
|
389 | 392 | # Clean up directories |
|
|
390 | 393 | rm -rf "${R}/run/*" |
|
|
391 | 394 | rm -rf "${R}/tmp/*" |
|
|
392 | 395 | |
|
|
393 | 396 | # Clean up files |
|
|
394 | 397 | rm -f "${ETCDIR}/ssh/ssh_host_*" |
|
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395 | 398 | rm -f "${ETCDIR}/dropbear/dropbear_*" |
|
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396 | 399 | rm -f "${ETCDIR}/apt/sources.list.save" |
|
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397 | 400 | rm -f "${ETCDIR}/resolvconf/resolv.conf.d/original" |
|
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398 | 401 | rm -f "${ETCDIR}/*-" |
|
|
399 | 402 | rm -f "${ETCDIR}/apt/apt.conf.d/10proxy" |
|
|
400 | 403 | rm -f "${ETCDIR}/resolv.conf" |
|
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401 | 404 | rm -f "${R}/root/.bash_history" |
|
|
402 | 405 | rm -f "${R}/var/lib/urandom/random-seed" |
|
|
403 | 406 | rm -f "${R}/initrd.img" |
|
|
404 | 407 | rm -f "${R}/vmlinuz" |
|
|
405 | 408 | rm -f "${R}${QEMU_BINARY}" |
|
|
406 | 409 | |
|
|
407 | 410 | # Calculate size of the chroot directory in KB |
|
|
408 | 411 | CHROOT_SIZE=$(expr `du -s "${R}" | awk '{ print $1 }'`) |
|
|
409 | 412 | |
|
|
410 | 413 | # Calculate the amount of needed 512 Byte sectors |
|
|
411 | 414 | TABLE_SECTORS=$(expr 1 \* 1024 \* 1024 \/ 512) |
|
|
412 | 415 | FRMW_SECTORS=$(expr 64 \* 1024 \* 1024 \/ 512) |
|
|
413 | 416 | ROOT_OFFSET=$(expr ${TABLE_SECTORS} + ${FRMW_SECTORS}) |
|
|
414 | 417 | |
|
|
415 | 418 | # The root partition is EXT4 |
|
|
416 | 419 | # This means more space than the actual used space of the chroot is used. |
|
|
417 | 420 | # As overhead for journaling and reserved blocks 20% are added. |
|
|
418 | 421 | ROOT_SECTORS=$(expr $(expr ${CHROOT_SIZE} + ${CHROOT_SIZE} \/ 100 \* 20) \* 1024 \/ 512) |
|
|
419 | 422 | |
|
|
420 | 423 | # Calculate required image size in 512 Byte sectors |
|
|
421 | 424 | IMAGE_SECTORS=$(expr ${TABLE_SECTORS} + ${FRMW_SECTORS} + ${ROOT_SECTORS}) |
|
|
422 | 425 | |
|
|
423 | 426 | # Prepare date string for image file name |
|
|
424 | 427 | DATE="$(date +%Y-%m-%d)" |
|
|
425 | 428 | |
|
|
426 | 429 | # Prepare image file |
|
|
427 | 430 | if [ "$ENABLE_SPLITFS" = true ] ; then |
|
|
428 | 431 | dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img" bs=512 count=${TABLE_SECTORS} |
|
|
429 | 432 | dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img" bs=512 count=0 seek=${FRMW_SECTORS} |
|
|
430 | 433 | dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}-root.img" bs=512 count=${TABLE_SECTORS} |
|
|
431 | 434 | dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}-root.img" bs=512 count=0 seek=${ROOT_SECTORS} |
|
|
432 | 435 | |
|
|
433 | 436 | # Write firmware/boot partition tables |
|
|
434 | 437 | sfdisk -q -L -uS -f "$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img" 2> /dev/null <<EOM |
|
|
435 | 438 | ${TABLE_SECTORS},${FRMW_SECTORS},c,* |
|
|
436 | 439 | EOM |
|
|
437 | 440 | |
|
|
438 | 441 | # Write root partition table |
|
|
439 | 442 | sfdisk -q -L -uS -f "$BASEDIR/${DATE}-debian-${RELEASE}-root.img" 2> /dev/null <<EOM |
|
|
440 | 443 | ${TABLE_SECTORS},${ROOT_SECTORS},83 |
|
|
441 | 444 | EOM |
|
|
442 | 445 | |
|
|
443 | 446 | # Setup temporary loop devices |
|
|
444 | 447 | FRMW_LOOP="$(losetup -o 1M --sizelimit 64M -f --show $BASEDIR/${DATE}-debian-${RELEASE}-frmw.img)" |
|
|
445 | 448 | ROOT_LOOP="$(losetup -o 1M -f --show $BASEDIR/${DATE}-debian-${RELEASE}-root.img)" |
|
|
446 | 449 | else # ENABLE_SPLITFS=false |
|
|
447 | 450 | dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}.img" bs=512 count=${TABLE_SECTORS} |
|
|
448 | 451 | dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}.img" bs=512 count=0 seek=${IMAGE_SECTORS} |
|
|
449 | 452 | |
|
|
450 | 453 | # Write partition table |
|
|
451 | 454 | sfdisk -q -L -uS -f "$BASEDIR/${DATE}-debian-${RELEASE}.img" 2> /dev/null <<EOM |
|
|
452 | 455 | ${TABLE_SECTORS},${FRMW_SECTORS},c,* |
|
|
453 | 456 | ${ROOT_OFFSET},${ROOT_SECTORS},83 |
|
|
454 | 457 | EOM |
|
|
455 | 458 | |
|
|
456 | 459 | # Setup temporary loop devices |
|
|
457 | 460 | FRMW_LOOP="$(losetup -o 1M --sizelimit 64M -f --show $BASEDIR/${DATE}-debian-${RELEASE}.img)" |
|
|
458 | 461 | ROOT_LOOP="$(losetup -o 65M -f --show $BASEDIR/${DATE}-debian-${RELEASE}.img)" |
|
|
459 | 462 | fi |
|
|
460 | 463 | |
|
|
461 | 464 | if [ "$ENABLE_CRYPTFS" = true ] ; then |
|
|
462 | 465 | # Create dummy ext4 fs |
|
|
463 | 466 | mkfs.ext4 "$ROOT_LOOP" |
|
|
464 | 467 | |
|
|
465 | 468 | # Setup password keyfile |
|
|
466 | 469 | echo -n ${CRYPTFS_PASSWORD} > .password |
|
|
467 | 470 | chmod 600 .password |
|
|
468 | 471 | |
|
|
469 | 472 | # Initialize encrypted partition |
|
|
470 | 473 | echo "YES" | cryptsetup luksFormat "${ROOT_LOOP}" -c "${CRYPTFS_CIPHER}" -s "${CRYPTFS_XTSKEYSIZE}" .password |
|
|
471 | 474 | |
|
|
472 | 475 | # Open encrypted partition and setup mapping |
|
|
473 | 476 | cryptsetup luksOpen "${ROOT_LOOP}" -d .password "${CRYPTFS_MAPPING}" |
|
|
474 | 477 | |
|
|
475 | 478 | # Secure delete password keyfile |
|
|
476 | 479 | shred -zu .password |
|
|
477 | 480 | |
|
|
478 | 481 | # Update temporary loop device |
|
|
479 | 482 | ROOT_LOOP="/dev/mapper/${CRYPTFS_MAPPING}" |
|
|
480 | 483 | |
|
|
481 | 484 | # Wipe encrypted partition (encryption cipher is used for randomness) |
|
|
482 | 485 | dd if=/dev/zero of="${ROOT_LOOP}" bs=512 count=$(blockdev --getsz "${ROOT_LOOP}") |
|
|
483 | 486 | fi |
|
|
484 | 487 | |
|
|
485 | 488 | # Build filesystems |
|
|
486 | 489 | mkfs.vfat "$FRMW_LOOP" |
|
|
487 | 490 | mkfs.ext4 "$ROOT_LOOP" |
|
|
488 | 491 | |
|
|
489 | 492 | # Mount the temporary loop devices |
|
|
490 | 493 | mkdir -p "$BUILDDIR/mount" |
|
|
491 | 494 | mount "$ROOT_LOOP" "$BUILDDIR/mount" |
|
|
492 | 495 | |
|
|
493 | 496 | mkdir -p "$BUILDDIR/mount/boot/firmware" |
|
|
494 | 497 | mount "$FRMW_LOOP" "$BUILDDIR/mount/boot/firmware" |
|
|
495 | 498 | |
|
|
496 | 499 | # Copy all files from the chroot to the loop device mount point directory |
|
|
497 | 500 | rsync -a "${R}/" "$BUILDDIR/mount/" |
|
|
498 | 501 | |
|
|
499 | 502 | # Unmount all temporary loop devices and mount points |
|
|
500 | 503 | cleanup |
|
|
501 | 504 | |
|
|
502 | 505 | # Create block map file(s) of image(s) |
|
|
503 | 506 | if [ "$ENABLE_SPLITFS" = true ] ; then |
|
|
504 | 507 | # Create block map files for "bmaptool" |
|
|
505 | 508 | bmaptool create -o "$BASEDIR/${DATE}-debian-${RELEASE}-frmw.bmap" "$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img" |
|
|
506 | 509 | bmaptool create -o "$BASEDIR/${DATE}-debian-${RELEASE}-root.bmap" "$BASEDIR/${DATE}-debian-${RELEASE}-root.img" |
|
|
507 | 510 | |
|
|
508 | 511 | # Image was successfully created |
|
|
509 | 512 | echo "$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img ($(expr \( ${TABLE_SECTORS} + ${FRMW_SECTORS} \) \* 512 \/ 1024 \/ 1024)M)" ": successfully created" |
|
|
510 | 513 | echo "$BASEDIR/${DATE}-debian-${RELEASE}-root.img ($(expr \( ${TABLE_SECTORS} + ${ROOT_SECTORS} \) \* 512 \/ 1024 \/ 1024)M)" ": successfully created" |
|
|
511 | 514 | else |
|
|
512 | 515 | # Create block map file for "bmaptool" |
|
|
513 | 516 | bmaptool create -o "$BASEDIR/${DATE}-debian-${RELEASE}.bmap" "$BASEDIR/${DATE}-debian-${RELEASE}.img" |
|
|
514 | 517 | |
|
|
515 | 518 | # Image was successfully created |
|
|
516 | 519 | echo "$BASEDIR/${DATE}-debian-${RELEASE}.img ($(expr \( ${TABLE_SECTORS} + ${FRMW_SECTORS} + ${ROOT_SECTORS} \) \* 512 \/ 1024 \/ 1024)M)" ": successfully created" |
|
|
517 | 520 | fi |
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