install systemd services as compat package
This commit is contained in:
Gavin Li
parent
dcd051f795
commit
199edd5716
103
install.sh
103
install.sh
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@ -57,6 +57,7 @@ set -eu
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set -o pipefail
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shopt -s nullglob
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shopt -s dotglob
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umask 022
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export LC_ALL=C
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export LANG=C
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@ -83,6 +84,70 @@ mask_to_prefix() {
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echo ${prefix}
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}
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install_compat_package() {
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local workdir=$(mktemp -d)
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local unitdir=${workdir}/usr/lib/systemd/system
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local kexeccmd
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set -- /sbin/kexec \
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/boot/vmlinuz-${kernel_package} \
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--initrd=/boot/initramfs-${kernel_package}.img \
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--reuse-cmdline \
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--command-line=archkernel
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kexeccmd="$*"
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cat > ${workdir}/.PKGINFO <<-'EOF'
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pkgname = digitalocean-debian-compat
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pkgver = 1.0-1
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pkgdesc = Compatibility files to run Arch Linux as a Debian distro on DigitalOcean
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url = https://github.com/gh2o/digitalocean-debian-to-arch
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arch = any
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license = GPL
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EOF
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mkdir -p ${unitdir}/sysinit.target.wants/
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ln -s ../arch-kernel.service ${unitdir}/sysinit.target.wants/
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cat > ${unitdir}/arch-kernel.service <<-EOF
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[Unit]
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Description=Reboots into Arch kernel
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ConditionKernelCommandLine=!archkernel
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DefaultDependencies=no
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Before=local-fs-pre.target systemd-remount-fs.service
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[Service]
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Type=oneshot
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ExecStart=${kexeccmd}
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EOF
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mkdir -p ${unitdir}/multi-user.target.wants/
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ln -s ../debian-interfaces.service ${unitdir}/multi-user.target.wants/
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cat > ${unitdir}/debian-interfaces.service <<-EOF
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[Unit]
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Description=Parses /etc/network/interfaces into .network files for systemd-networkd
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DefaultDependencies=no
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Before=systemd-networkd.service
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[Service]
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Type=oneshot
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ExecStart=/usr/sbin/parse-debian-interfaces
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EOF
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mkdir -p ${workdir}/usr/bin/
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cat > ${workdir}/usr/bin/parse-debian-interfaces <<-EOF
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#!/bin/bash
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set -eu
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set -o pipefail
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echo ENIENIENIENI > /dev/kmsg
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EOF
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chmod 0755 ${workdir}/usr/bin/parse-debian-interfaces
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( cd ${workdir} && bsdtar -cf compat.pkg.tar * )
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pacman -U --noconfirm ${workdir}/compat.pkg.tar
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rm -rf ${workdir}
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}
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parse_debian_interfaces() {
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local filename="${1}" # path to interfaces file
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local interface="${2}" # interface name
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@ -431,29 +496,15 @@ postbootstrap_configuration() {
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local unitdir=/archroot/etc/systemd/system
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mkdir -p ${unitdir}/basic.target.wants
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ln -s ../installer-cleanup.service ${unitdir}/basic.target.wants/
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cat > ${unitdir}/installer-cleanup.service <<EOF
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ln -s ../installer-finalize.service ${unitdir}/basic.target.wants/
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cat > ${unitdir}/installer-finalize.service <<EOF
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[Unit]
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Description=Post-install cleanup
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Description=Post-install finalization
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ConditionPathExists=/installer/script.sh
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[Service]
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Type=oneshot
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ExecStart=/installer/script.sh
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EOF
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mkdir -p ${unitdir}/sysinit.target.wants
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ln -s ../arch-kernel.service ${unitdir}/sysinit.target.wants
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cat > ${unitdir}/arch-kernel.service <<EOF
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[Unit]
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Description=Reboots into arch kernel
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ConditionKernelCommandLine=!archkernel
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DefaultDependencies=no
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Before=local-fs-pre.target systemd-remount-fs.service
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[Service]
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Type=oneshot
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ExecStart=/sbin/kexec /boot/vmlinuz-${kernel_package} --initrd=/boot/initramfs-${kernel_package}.img --reuse-cmdline --command-line=archkernel
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EOF
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}
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@ -579,12 +630,16 @@ transitory_main() {
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}
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postinstall_main() {
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finalize_main() {
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# remove cleanup service
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# install compatibility package
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install_compat_package
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# remove finalization service
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local unitdir=/etc/systemd/system
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rm -f ${unitdir}/installer-cleanup.service
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rm -f ${unitdir}/basic.target.wants/installer-cleanup.service
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rm -f ${unitdir}/installer-finalize.service
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rm -f ${unitdir}/basic.target.wants/installer-finalize.service
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rmdir ${unitdir}/basic.target.wants || true
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# cleanup filesystem
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rm -f /var/cache/pacman/pkg
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@ -593,6 +648,10 @@ postinstall_main() {
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rm -rf /archroot
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rm -rf /installer
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# restart into new kernel
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systemctl daemon-reload
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systemctl start arch-kernel.service
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}
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canonicalize_path() {
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@ -610,7 +669,7 @@ if [ $$ -eq 1 ]; then
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elif [ "${script_path}" = "/sbin/init" ]; then
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exec /sbin/init.original "$@"
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elif [ "${script_path}" = "/installer/script.sh" ]; then
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postinstall_main "$@"
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finalize_main "$@"
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else
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installer_main "$@"
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fi
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