[TUTORIAL] ZFS not most recent snapshot bypass

[H4R0]

In case you use autosnapshot or other tools to do periodic zfs snapshots and thus can't use the roolback feature of pve.



This patch enforces the rollback, execute as root in terminal:

cat << 'EOF' > /etc/cron.hourly/proxmox-zfs-rollback-force
#!/bin/bash
FILE="/usr/share/perl5/PVE/Storage/ZFSPoolPlugin.pm"
grep "'rollback', \"" $FILE >/dev/null && sed -i "s/'rollback', \"/'rollback', '-rf', \"/g" $FILE && sed -i "s/if \$snap ne \$recentsnap;/if 0;/g" $FILE && systemctl restart pvedaemon || exit 0
EOF

chmod +x /etc/cron.hourly/proxmox-zfs-rollback-force

bash /etc/cron.hourly/proxmox-zfs-rollback-force

Note: A rollback deletes all snapshots taken afterwards