@jct, how exactly do you this step?
Urbackup is not enabling ZFS same as @tiswi:
I tried to do a "Host Path Volume" mount for /dev/zfs and it failed.Using the big blue button you should be able to mimic the same effect by mapping /dev/zfs as-is from host to container and enabling privileged mode.
Urbackup is not enabling ZFS same as @tiswi:
2022-12-25 04:10:41.735733+00:00Testing for zfs...
2022-12-25 04:10:41.735771+00:00TEST FAILED: Dataset is not set via /etc/urbackup/dataset
2022-12-25 04:10:41.736088+00:002022-12-25 04:10:41: Backup destination cannot handle subvolumes and snapshots. Snapshots disabled.