Someone have some feedback on this? Really i don't understand... Thanks.
> We have upgraded our server from PVE6 to PVE8, waited some month to be sure > there's no incompatibilities and now we are ready to remove older kernels, > and upgrade ZFS. > > Current situation is: > > root@svpve3:~# zfs upgrade > This system is currently running ZFS filesystem version 5. > > All filesystems are formatted with the current version. > > and: > > root@svpve3:~# zpool upgrade > This system supports ZFS pool feature flags. > > All pools are formatted using feature flags. > > > Some supported features are not enabled on the following pools. Once a > feature is enabled the pool may become incompatible with software > that does not support the feature. See zpool-features(7) for details. > > Note that the pool 'compatibility' feature can be used to inhibit > feature upgrades. > > POOL FEATURE > --------------- > rpool > draid > zilsaxattr > head_errlog > blake3 > block_cloning > vdev_zaps_v2 > rpool-backup > draid > zilsaxattr > head_errlog > blake3 > block_cloning > vdev_zaps_v2 > > So, there's no zfs upgrade needed, but zpool is. > > > First question: i've read: > https://pve.proxmox.com/wiki/ZFS_on_Linux#sysadmin_zfs_features > and on detail: > A system with root on ZFS, that still boots using GRUB will become > unbootable if a new feature is active on the rpool, due to the incompatible > implementation of ZFS in GRUB. > > looking at 'zpool-features', GRUB 2.06 compatible features seems on file > /usr/share/zfs/compatibility.d/grub2-2.06, that report: > > # Features which are supported by GRUB2 versions prior to v2.12. > # > # GRUB is not able to detect ZFS pool if snaphsot of top level boot pool > # is created. This issue is observed with GRUB versions before v2.12 if > # extensible_dataset feature is enabled on ZFS boot pool. > # > # This file lists all read-only comaptible features except > # extensible_dataset and any other feature that depends on it. > > After upgrading the non-boot ZFS pool, i get this: > > root@svpve3:~# zpool get all rpool-backup | grep feature@ | grep enabled | > sort > rpool-backup feature@allocation_classes enabled > local > rpool-backup feature@async_destroy enabled > local > rpool-backup feature@blake3 enabled > local > rpool-backup feature@block_cloning enabled > local > rpool-backup feature@bookmarks enabled > local > rpool-backup feature@bookmark_v2 enabled > local > rpool-backup feature@bookmark_written enabled > local > rpool-backup feature@device_rebuild enabled > local > rpool-backup feature@device_removal enabled > local > rpool-backup feature@draid enabled > local > rpool-backup feature@edonr enabled > local > rpool-backup feature@enabled_txg active > local > rpool-backup feature@encryption enabled > local > rpool-backup feature@filesystem_limits enabled > local > rpool-backup feature@large_dnode enabled > local > rpool-backup feature@livelist enabled > local > rpool-backup feature@multi_vdev_crash_dump enabled > local > rpool-backup feature@obsolete_counts enabled > local > rpool-backup feature@redacted_datasets enabled > local > rpool-backup feature@redaction_bookmarks enabled > local > rpool-backup feature@resilver_defer enabled > local > rpool-backup feature@sha512 enabled > local > rpool-backup feature@skein enabled > local > rpool-backup feature@vdev_zaps_v2 enabled > local > rpool-backup feature@zilsaxattr enabled > local > rpool-backup feature@zpool_checkpoint enabled > local > rpool-backup feature@zstd_compress enabled > local > > but it is unclear to me how to check compatibility issue: seems to there's > no 'extensible_dataset' so i'm safe... or better, seems active BOTH on > upgraded and non-upgraded dataset, and was not on feature list to be enabled > by upgrade... > > root@svpve3:~# zpool get all rpool | grep feature@ | grep extensible_dataset > rpool feature@extensible_dataset active local > > root@svpve3:~# zpool get all rpool-backup | grep feature@ | grep > extensible_dataset > rpool-backup feature@extensible_dataset active > local > > > There's some better description of these incompatibilities, or some > reference ZFS or GRUB docs about this? > > > Thanks. > -- _______________________________________________ pve-user mailing list [email protected] https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user
