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archboot/usr/bin/archboot-update-installer.sh
Tobias Powalowski fac75b2f15 don't remove makepkg directory for repo-add
2022-03-25 12:16:04 +01:00

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#!/usr/bin/env bash
# created by Tobias Powalowski <tpowa@archlinux.org>
. /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
echo "Creating btrfs filesystem with ${_DISKSIZE} on /dev/zram0 ..." > /dev/tty7
mkfs.btrfs --mixed /dev/zram0 > /dev/null 2>&1 || exit 1
mkdir "${_W_DIR}"
# use -o discard for RAM cleaning on delete
# (online fstrimming the block device!)
# fstrim <mountpoint> 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 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
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