On 8/25/24 02:05, ft wrote:
Hello,
I have make an upgrade from 13.1 to 14.1.
uname -a
FreeBSD ftc 14.1-RELEASE-p3 FreeBSD 14.1-RELEASE-p3 GENERIC amd64
Everything works fine.
My question:
There are some zfs and some snapshots. Can I destroy them or are they
required?
If the data is important, make sure your backups are in order.
If worried about making undoable changes, create a pool checkpoint;
`man zpoolconcepts` for details about checkpoints.
If you are using ZFS boot environments (it looks like you are), those
switchable states are created by snapshotting the relevant datasets and
then turning the snapshot into a clone. Which ones are safe to remove
should be determined by paying attention to the 'Active' field when
listing them (bectl or sysutils/beadm). Your boot environment manager
has commands to destroy boot environments; read its manpage to see if
you also need to tell it to clean up a corresponding snapshot.
Otherwise, snapshots are not needed as long as they do not have your
only copy of data you need (accidental overwrite, delete, etc). If you
perform a `zpool upgrade` then newer pool features may also break the
ability to boot older setups; sometimes you can install sysutils/openzfs
to bring a newer version than was included with base to further improve
the compatibility range; easiest done before the pool upgrade. Removing
snapshots removes the ability to use it as a reference point for an
incremental replication (zfs send+recv). FreeBSD does not depend on
those snapshots for its current operation.
Here is the list:
zfs:
zroot/ROOT/13.1-RELEASE-p9_2023-08-27_201128
zroot/ROOT/13.1-RELEASE_2023-08-27_195317
zroot/ROOT/13.2-RELEASE-p12_2024-08-24_192252
zroot/ROOT/13.2-RELEASE-p2_2023-08-27_223329
zroot/ROOT/13.2-RELEASE-p2_2024-08-24_185205
zroot/ROOT/14.1-RELEASE-p3_2024-08-24_192543
snapshots:
zroot/ROOT/default@2023-08-27-19:53:17-0
zroot/ROOT/default@2023-08-27-20:11:28-0
zroot/ROOT/default@2023-08-27-22:33:29-0
zroot/ROOT/default@2024-08-24-18:52:05-0
zroot/ROOT/default@2024-08-24-19:22:52-0
zroot/ROOT/default@2024-08-24-19:25:43-0
Franz
