#!/usr/bin/env bash # created by Tobias Powalowski . /usr/lib/archboot/common.sh _D_SCRIPTS="" _L_COMPLETE="" _L_INSTALL_COMPLETE="" _G_RELEASE="" _CONFIG="/etc/archboot/${_RUNNING_ARCH}-update_installer.conf" _W_DIR="/archboot" _INSTALLER_SOURCE="https://gitlab.archlinux.org/tpowa/archboot/-/raw/master" _BIN_PATH="/usr/bin" _LIB_PATH="/usr/lib/archboot" _INST_PATH="/${_LIB_PATH}/installer" kver() { # get kernel version from installed kernel [[ "${_RUNNING_ARCH}" == "x86_64" ]] && VMLINUZ="vmlinuz-linux" [[ "${_RUNNING_ARCH}" == "aarch64" ]] && VMLINUZ="Image" if [[ -f "${VMLINUZ}" ]]; then offset=$(hexdump -s 526 -n 2 -e '"%0d"' "${VMLINUZ}") read -r _HWKVER _ < <(dd if="/${VMLINUZ}" bs=1 count=127 skip=$(( offset + 0x200 )) 2>/dev/null) fi # fallback if no detectable kernel is installed [[ "${_HWKVER}" == "" ]] && _HWKVER="$(uname -r)" } zram_mount() { modprobe zram echo zstd >/sys/block/zram0/comp_algorithm echo ${_DISKSIZE} >/sys/block/zram0/disksize echo 4 >/sys/block/zram0/max_comp_streams mkfs.btrfs --mixed /dev/zram0 > /dev/tty7 2>&1 || exit 1 mkdir "${_W_DIR}" # use -o discard for RAM cleaning on delete # (online fstrimming the block device!) # fstrim for manual action # it needs some seconds to get RAM free on delete! mount -o discard /dev/zram0 "${_W_DIR}" } clean_archboot() { # remove everything not necessary rm -rf "/usr/lib/firmware" rm -rf "/usr/lib/modules" rm -rf /usr/lib/{libicu*,libstdc++*} _SHARE_DIRS="archboot efitools file grub hwdata kbd licenses lshw makepkg nmap nano openvpn pacman refind systemd tc usb_modeswitch vim zoneinfo" for i in ${_SHARE_DIRS}; do #shellcheck disable=SC2115 rm -rf "/usr/share/${i}" done } usage () { echo "Update installer, launch latest environment or create latest image files:" echo "-------------------------------------------------------------------------" echo "PARAMETERS:" echo " -u Update scripts: setup, quickinst, tz, km and helpers." echo "" echo "On fast internet connection (100Mbit) (approx. 5 minutes):" echo " -latest Launch latest archboot environment (using kexec)." echo " This operation needs at least 1.8 GB RAM." echo "" echo " -latest-install Launch latest archboot environment with downloaded" echo " package cache (using kexec)." echo " This operation needs at least 2.5 GB RAM." echo "" echo " -latest-image Generate latest image files in /archboot-release directory" echo " This operation needs at least 4.6 GB RAM." echo "" echo " -h This message." exit 0 } [[ -z "${1}" ]] && usage while [ $# -gt 0 ]; do case ${1} in -u|--u) _D_SCRIPTS="1" ;; -latest|--latest) _L_COMPLETE="1" ;; -latest-install|--latest-install) _L_INSTALL_COMPLETE="1";; -latest-image|--latest-image) _G_RELEASE="1" ;; -h|--h|?) usage ;; *) usage ;; esac shift done if [[ ! "$(cat /etc/hostname)" == "archboot" ]]; then echo "This script should only be run in booted archboot environment. Aborting..." exit 1 fi # Download latest setup and quickinst script from git repository if [[ "${_D_SCRIPTS}" == "1" ]]; then echo "Downloading latest km, tz, quickinst, setup and helpers..." wget -q "${_INSTALLER_SOURCE}${_BIN_PATH}/archboot-quickinst.sh?inline=false" -O /usr/bin/quickinst >/dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_BIN_PATH}/archboot-setup.sh?inline=false" -O /usr/bin/setup >/dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_BIN_PATH}/archboot-km.sh?inline=false" -O /usr/bin/km >/dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_BIN_PATH}/archboot-tz.sh?inline=false" -O /usr/bin/tz >/dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_BIN_PATH}/archboot-${_RUNNING_ARCH}-create-container.sh?inline=false" -O "/usr/bin/archboot-${_RUNNING_ARCH}-create-container.sh" >/dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_BIN_PATH}/archboot-${_RUNNING_ARCH}-release.sh?inline=false" -O "/usr/bin/archboot-${_RUNNING_ARCH}-release.sh" >/dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_BIN_PATH}/archboot-binary-check.sh?inline=false" -O /usr/bin/archboot-binary-check.sh >/dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_BIN_PATH}/archboot-update-installer.sh?inline=false" -O /usr/bin/update-installer.sh >/dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_LIB_PATH}/common.sh?inline=false" -O "${_LIB_PATH}/common.sh" >/dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_LIB_PATH}/container.sh?inline=false" -O "${_LIB_PATH}/container.sh" >/dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_LIB_PATH}/release.sh?inline=false" -O "${_LIB_PATH}/release.sh" >/dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_LIB_PATH}/iso.sh?inline=false" -O "${_LIB_PATH}/iso.sh" >/dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_INST_PATH}/autoconfiguration.sh?inline=false" -O "${_INST_PATH}/autoconfiguration.sh" > /dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_INST_PATH}/autoprepare.sh?inline=false" -O "${_INST_PATH}/autoprepare.sh" > /dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_INST_PATH}/base.sh?inline=false" -O "${_INST_PATH}/base.sh" > /dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_INST_PATH}/blockdevices.sh?inline=false" -O "${_INST_PATH}/blockdevices.sh" > /dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_INST_PATH}/bootloader.sh?inline=false" -O "${_INST_PATH}/bootloader.sh" > /dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_INST_PATH}/btrfs.sh?inline=false" -O "${_INST_PATH}/btrfs.sh" > /dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_INST_PATH}/common.sh?inline=false" -O "${_INST_PATH}/common.sh" > /dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_INST_PATH}/configuration.sh?inline=false" -O "${_INST_PATH}/configuration.sh" > /dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_INST_PATH}/mountpoints.sh?inline=false" -O "${_INST_PATH}/mountpoints.sh" > /dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_INST_PATH}/network.sh?inline=false" -O "${_INST_PATH}/network.sh" > /dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_INST_PATH}/pacman.sh?inline=false" -O "${_INST_PATH}/pacman.sh" > /dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_INST_PATH}/partition.sh?inline=false" -O "${_INST_PATH}/partition.sh" > /dev/null 2>&1 wget -q "${_INSTALLER_SOURCE}${_INST_PATH}/storage.sh?inline=false" -O "${_INST_PATH}/storage.sh" > /dev/null 2>&1 echo "Finished: Downloading scripts done." exit 0 fi echo "Information: Logging is done on /dev/tty7 ..." # Generate new environment and launch it with kexec if [[ "${_L_COMPLETE}" == "1" || "${_L_INSTALL_COMPLETE}" == "1" ]]; then if [[ -f /.update-installer ]]; then echo "Aborting: update-installer.sh is already running on other tty ..." echo "If you are absolutly sure it's not running, you need to remove /.update-installer" exit 1 fi touch /.update-installer _DISKSIZE="3G" zram_mount echo "Step 1/9: Removing not necessary files from / ..." clean_archboot echo "Step 2/9: Waiting for gpg pacman keyring import to finish ..." while pgrep -x gpg > /dev/null 2>&1; do sleep 1 done systemctl stop pacman-init.service echo "Step 3/9: Generating archboot container in ${_W_DIR} ..." echo " This will need some time ..." # create container without package cache if [[ "${_L_COMPLETE}" == "1" ]]; then "archboot-${_RUNNING_ARCH}-create-container.sh" "${_W_DIR}" -cc -cp >/dev/tty7 2>&1 || exit 1 fi # create container with package cache if [[ -e /var/cache/pacman/pkg/archboot.db ]]; then # offline mode, for testing purposes # add the db too on reboot install -D -m644 /var/cache/pacman/pkg/archboot.db /archboot/var/cache/pacman/pkg/archboot.db if [[ "${_L_INSTALL_COMPLETE}" == "1" ]]; then "archboot-${_RUNNING_ARCH}-create-container.sh" "${_W_DIR}" -cc --install-source=file:///var/cache/pacman/pkg >/dev/tty7 2>&1 || exit 1 fi else #online mode if [[ "${_L_INSTALL_COMPLETE}" == "1" ]]; then "archboot-${_RUNNING_ARCH}-create-container.sh" "${_W_DIR}" -cc >/dev/tty7 2>&1 || exit 1 mv "${_W_DIR}"/var/cache/pacman/pkg /var/cache/pacman/ fi fi echo "Step 4/9: Moving kernel ${VMLINUZ} to ${_W_DIR} ..." kver mv "${_W_DIR}"/boot/${VMLINUZ} / || exit 1 echo "Step 5/9: Collect initramfs files in ${_W_DIR} ..." echo " This will need some time ..." # add fix for mkinitcpio 31, remove when 32 is released cp "${_W_DIR}"/usr/share/archboot/patches/31-mkinitcpio.fixed "${_W_DIR}"/usr/bin/mkinitcpio cp "${_W_DIR}"/usr/share/archboot/patches/31-initcpio.functions.fixed "${_W_DIR}"/usr/lib/initcpio/functions # write initramfs to "${_W_DIR}"/tmp systemd-nspawn -D "${_W_DIR}" /bin/bash -c "umount tmp;mkinitcpio -k ${_HWKVER} -c ${_CONFIG} -d /tmp" >/dev/tty7 2>&1 || exit 1 #mv "${_W_DIR}/tmp" /initrd || exit 1 echo "Step 6/9: Cleanup ${_W_DIR} ..." find "${_W_DIR}"/. -mindepth 1 -maxdepth 1 ! -name 'tmp' ! -name "${VMLINUZ}" -exec rm -rf {} \; # 10 seconds for getting free RAM sleep 10 echo "Step 7/9: Create initramfs initrd.img ..." echo " This will need some time ..." # move cache back to initramfs directory in online mode if ! [[ -e /var/cache/pacman/pkg/archboot.db ]]; then [[ "${_L_INSTALL_COMPLETE}" == "1" ]] && mv /var/cache/pacman/pkg ${_W_DIR}/tmp/var/cache/pacman/ fi #from /usr/bin/mkinitpcio.conf # compress image with zstd cd "${_W_DIR}"/tmp || exit 1 find . -mindepth 1 -printf '%P\0' | sort -z | bsdtar --uid 0 --gid 0 --null -cnf - -T - | bsdtar --null -cf - --format=newc @- | zstd -T0 -10> /initrd.img for i in $(find . -mindepth 1 -type f | sort); do rm "${i}" >/dev/null 2>&1 done while pgreg -x bsdtar >/dev/null 2>&1; do sleep 1 done echo "Step 8/9: Cleanup ${_W_DIR}/tmp ..." cd / umount ${_W_DIR} echo 1 > /sys/block/zram0/reset sleep 5 echo "Step 9/9: Loading files through kexec into kernel now ..." # load kernel and initrds into running kernel in background mode! kexec -f /"${VMLINUZ}" --initrd="/initrd.img" --reuse-cmdline& # wait 1 seconds for getting a complete initramfs # remove kernel and initrd to save RAM for kexec in background sleep 2 rm /{initrd.img,${VMLINUZ}} while pgreg -x kexec >/dev/null 2>&1; do sleep 1 done echo "Finished: Rebooting in a few seconds ..." # don't show active prompt wait for kexec to be launched sleep 30 fi # Generate new images if [[ "${_G_RELEASE}" == "1" ]]; then _DISKSIZE="5G" zram_mount echo "Step 1/2: Removing not necessary files from / ..." clean_archboot echo "Step 2/2: Generating new iso files now in ${_W_DIR} ..." echo " This will need some time ..." "archboot-${_RUNNING_ARCH}-release.sh" "${_W_DIR}" >/dev/tty7 2>&1 || exit 1 echo "Finished: New isofiles are located in ${_W_DIR}" fi