#!/bin/bash set -x set -e # Build fs, image # This file is part of PrawnOS (http://www.prawnos.com) # Copyright (c) 2018 Hal Emmerich # PrawnOS is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License version 2 # as published by the Free Software Foundation. # PrawnOS is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with PrawnOS. If not, see . #Ensure Sudo if [ ! $UID = "0" ] then echo "Please run this script with sudo, or as root:" echo "sudo $0 $*" exit 1 fi if [ -z "$1" ] then echo "No kernel version supplied" exit 1 fi if [ -z "$2" ] then echo "No debian suite supplied" exit 1 fi if [ -z "$3" ] then echo "No base file system image filename supplied" exit 1 fi KVER=$1 DEBIAN_SUITE=$2 BASE=$3 outmnt=$(mktemp -d -p `pwd`) outdev=/dev/loop5 install_resources=resources/InstallResources build_resources=resources/BuildResources #A hacky way to ensure the loops are properly unmounted and the temp files are properly deleted. #Without this, a reboot is sometimes required to properly clean the loop devices and ensure a clean build cleanup() { set +e umount -l $outmnt > /dev/null 2>&1 rmdir $outmnt > /dev/null 2>&1 losetup -d $outdev > /dev/null 2>&1 set +e umount -l $outmnt > /dev/null 2>&1 rmdir $outmnt > /dev/null 2>&1 losetup -d $outdev > /dev/null 2>&1 } trap cleanup INT TERM EXIT #layout the partitons and write filesystem information create_image() { dd if=/dev/zero of=$1 bs=$3 count=$4 conv=sparse parted --script $1 mklabel gpt cgpt create $1 kernel_start=8192 kernel_size=65536 cgpt add -i 1 -t kernel -b $kernel_start -s $kernel_size -l Kernel -S 1 -T 5 -P 10 $1 #Now the main filesystem root_start=$(($kernel_start + $kernel_size)) end=`cgpt show $1 | grep 'Sec GPT table' | awk '{print $1}'` root_size=$(($end - $root_start)) cgpt add -i 2 -t data -b $root_start -s $root_size -l Root $1 # $root_size is in 512 byte blocks while ext4 uses a block size of 1024 bytes losetup -P $2 $1 mkfs.ext4 -F -b 1024 ${2}p2 $(($root_size / 2)) # mount the / partition mount -o noatime ${2}p2 $5 } build_install_crossystem() { # install crossystem apt install -y vboot-utils #install clang and pre-reqs apt install -y clang uuid-dev meson pkg-config cmake libcmocka-dev cargo flashmap_src=/root/flashmap mosys_src=/root/mosys mkdir $flashmap_src mkdir $mosys_src #clone flashmap, need to build libfmap git clone https://github.com/dhendrix/flashmap.git /root/flashmap cd $flashmap_src && make all cd $flashmap_src && make install ldconfig #clone mosys. Later releases start depending on the minijail library which we would have to build, and that we don't care about anyway on linux git clone https://chromium.googlesource.com/chromiumos/platform/mosys /root/mosys cd $mosys_src && git checkout release-R69-10895.B mkdir $mosys_src/build # compile the c parts cd $mosys_src && CFLAGS="-Wno-error" CC=clang meson -Darch=arm $mosys_src/build cd $mosys_src && ninja -C $mosys_src/build # install mosys so crossystem can access it. It EXPECTS it to be right here and fails otherwise... mkdir -p /usr/sbin/ cp --verbose $mosys_src/build/mosys /usr/sbin/ # cleanup the source rm -rf $flashmap_src rm -rf $mosys_src # cleanup the unnecessary build packages, need the noninteractive flag as -y is not enough to avoid prompting users on remove for some reason DEBIAN_FRONTEND=noninteractive apt-get purge -y --auto-remove clang meson libcmocka-dev cargo cmake pkg-config } # create a 2GB image with the Chrome OS partition layout create_image $BASE $outdev 50M 40 $outmnt # use default debootstrap mirror if none is specified if [ "$PRAWNOS_DEBOOTSTRAP_MIRROR" = "" ] then PRAWNOS_DEBOOTSTRAP_MIRROR=http://ftp.us.debian.org/debian fi # install Debian on it export DEBIAN_FRONTEND=noninteractive qemu-debootstrap --arch armhf $DEBIAN_SUITE --include locales,init --keyring=$build_resources/debian-archive-keyring.gpg $outmnt $PRAWNOS_DEBOOTSTRAP_MIRROR chroot $outmnt passwd -d root #Place the config files and installer script and give them the proper permissions echo -n PrawnOS > $outmnt/etc/hostname cp -R $install_resources/ $outmnt/InstallResources/ # and the icons for the lockscreen and app menu mkdir $outmnt/InstallResources/icons/ cp $build_resources/logo/icons/icon-small.png $outmnt/InstallResources/icons/ cp $build_resources/logo/icons/ascii/* $outmnt/InstallResources/icons/ cp scripts/InstallScripts/* $outmnt/InstallResources/ cp scripts/InstallScripts/InstallPrawnOS.sh $outmnt/ chmod +x $outmnt/*.sh #Setup the chroot for apt #This is what https://wiki.debian.org/EmDebian/CrossDebootstrap suggests cp /etc/hosts $outmnt/etc/ cp $build_resources/sources.list $outmnt/etc/apt/sources.list sed -i -e "s/suite/$DEBIAN_SUITE/g" $outmnt/etc/apt/sources.list if [ "$DEBIAN_SUITE" != "sid" ] then # sid doesn't have updates or security; they're present for all other suites cat $build_resources/updates.list >> $outmnt/etc/apt/sources.list sed -i -e "s/suite/$DEBIAN_SUITE/g" $outmnt/etc/apt/sources.list # sid doesn't have backports; it's present for all other suites cp $build_resources/backports.list $outmnt/etc/apt/sources.list.d/ sed -i -e "s/suite/$DEBIAN_SUITE/g" $outmnt/etc/apt/sources.list.d/backports.list #setup apt pinning cp $build_resources/backports.pref $outmnt/etc/apt/preferences.d/ sed -i -e "s/suite/$DEBIAN_SUITE/g" $outmnt/etc/apt/preferences.d/backports.pref # Install sid (unstable) as an additional source for bleeding edge packages. cp $build_resources/sid.list $outmnt/etc/apt/sources.list.d/ #setup apt pinning cp $build_resources/sid.pref $outmnt/etc/apt/preferences.d/ fi if [ "$DEBIAN_SUITE" = "buster" ] then # Install bullseye (testing) as an additional source cp $build_resources/bullseye.list $outmnt/etc/apt/sources.list.d/ #setup apt pinning cp $build_resources/bullseye.pref $outmnt/etc/apt/preferences.d/ fi #Setup the locale cp $build_resources/locale.gen $outmnt/etc/locale.gen chroot $outmnt locale-gen #Install the base packages chroot $outmnt apt update chroot $outmnt apt install -y udev kmod net-tools inetutils-ping traceroute iproute2 isc-dhcp-client wpasupplicant iw alsa-utils cgpt vim-tiny less psmisc netcat-openbsd ca-certificates bzip2 xz-utils ifupdown nano apt-utils git kpartx gdisk parted rsync busybox-static cryptsetup bash-completion libnss-systemd libpam-cap nftables uuid-runtime libgpg-error-l10n libatm1 laptop-detect e2fsprogs-l10n vim #build and install crossystem/mosys, funky way to call the bash function inside the chroot export -f build_install_crossystem chroot $outmnt /bin/bash -ec "build_install_crossystem" #add the live-boot fstab cp -f $build_resources/external_fstab $outmnt/etc/fstab chmod 644 $outmnt/etc/fstab #Cleanup to reduce install size chroot $outmnt apt-get autoremove --purge chroot $outmnt apt-get clean #Download support for libinput-gestures chroot $outmnt apt install -y libinput-tools xdotool build-essential #Package is copied into /InstallResources/packages chroot $outmnt apt-get install -y -t testing -d xsecurelock #Download the packages to be installed by Install.sh: chroot $outmnt apt-get install -y -d xorg acpi-support lightdm tasksel dpkg librsvg2-common xorg xserver-xorg-input-libinput alsa-utils anacron avahi-daemon eject iw libnss-mdns xdg-utils lxqt crda xfce4 dbus-user-session system-config-printer tango-icon-theme xfce4-power-manager xfce4-terminal xfce4-goodies mousepad vlc libutempter0 xterm numix-gtk-theme dconf-cli dconf-editor plank network-manager-gnome network-manager-openvpn network-manager-openvpn-gnome dtrx emacs accountsservice sudo pavucontrol-qt papirus-icon-theme sysfsutils bluetooth chroot $outmnt apt-get install -d -y firefox-esr # grab chromium as well, since sound is still broken in firefox for some media #Cleanup hosts rm -rf $outmnt/etc/hosts #This is what https://wiki.debian.org/EmDebian/CrossDebootstrap suggests echo -n "127.0.0.1 PrawnOS" > $outmnt/etc/hosts umount -l $outmnt > /dev/null 2>&1 rmdir $outmnt > /dev/null 2>&1 losetup -d $outdev > /dev/null 2>&1 echo "DONE!" trap - INT TERM EXIT