proxmox-backup/debian/proxmox-file-restore.postinst

64 lines
1.6 KiB
Bash
Executable File

#!/bin/sh
set -e
update_initramfs() {
# regenerate initramfs for single file restore VM
INST_PATH="/usr/lib/x86_64-linux-gnu/proxmox-backup/file-restore"
CACHE_PATH="/var/cache/proxmox-backup/file-restore-initramfs.img"
# cleanup first, in case proxmox-file-restore was uninstalled since we do
# not want an unuseable image lying around
rm -f "$CACHE_PATH"
[ -f "$INST_PATH/initramfs.img" ] || \
echo "proxmox-backup-restore-image is not installed correctly" >2 || \
exit 1
echo "Updating file-restore initramfs..."
# avoid leftover temp file
cleanup() {
rm -f "$CACHE_PATH.tmp"
}
trap cleanup EXIT
mkdir -p "/var/cache/proxmox-backup"
cp "$INST_PATH/initramfs.img" "$CACHE_PATH.tmp"
# cpio uses passed in path as offset inside the archive as well, so we need
# to be in the same dir as the daemon binary to ensure it's placed in /
( cd "$INST_PATH"; \
printf "./proxmox-restore-daemon" \
| cpio -o --format=newc -A -F "$CACHE_PATH.tmp" )
mv -f "$CACHE_PATH.tmp" "$CACHE_PATH"
trap - EXIT
}
case "$1" in
configure)
# in case restore daemon was updated
update_initramfs
;;
triggered)
if [ "$2" = "proxmox-backup-restore-image-update" ]; then
# in case base-image was updated
update_initramfs
else
echo "postinst called with unknown trigger name: \`$2'" >&2
fi
;;
abort-upgrade|abort-remove|abort-deconfigure)
;;
*)
echo "postinst called with unknown argument \`$1'" >&2
exit 1
;;
esac
exit 0