Package: zfs-initramfs
Version: 2.3.0-1
Severity: normal
Dear Maintainer,
*** Reporter, please consider answering these questions, where appropriate ***
* What led up to the situation?
I should have kept track of when I noticed the issue.
Some fateful day in May 2024, I rebooted for the first time in an
age, I was greeted with:
> No pool imported. Manually import the root pool
> at the command prompt and then exit.
> Hint: Try: zpool import -N
* What exactly did you do (or not do) that was effective (or
ineffective)?
I've settled on the following (after I'm dumped to the command prompt
with
the above 'hint')
zpool export -a # be certain everything exported
zpool import -N -R /root rootpool
zpool import # show all pools, of which there are many
zfs mount rootpool/ROOT/debian
zfs mount -a
exit
I do not know what zfs property (or what else) is wrong that is
causing the zfs initramfs script to fail to see/recognize the rootpool.
I've also tried regenerating the zpool.cache, followed by the
initramfs (and
then validating the new initramfs _contains_ the updated zpool.cache)
For what it's worth, my kernel (grub) commandline is:
/BOOT/debian@/vmlinuz-6.12.16-amd64 root=ZFS=/ROOT/debian
zfs-initramfs has worked for over a decade without any issue, and I'm
unaware of any changes that have been made to the zpool.
I do have some observations that apply in my particular case:
- `zpool import -N` is _not_ helpful; it dies horribly for me, at
least, as it still doesn't have an `altroot` the import needs to
be mounted against.
- It's _easy_ to import a zpool. Or search for how to do so.
- What isn't documented, or hinted at, is that the standard
`zpool import` isn't going to work, and that additional options
are required to mount the pool to the aforementioned altroot
(`-R`)
- The easy-to-find [Debian Root on ZFS
HowTo](https://openzfs.github.io/openzfs-docs/Getting%20Started/Debian/Debian%20Bookworm%20Root%20on%20ZFS.html)
has the user mount to `/mnt/ (ie. `-R /mnt`). The `initramfs`,
however, expects the pool to be imported to `/root`.
- My suggestion would be, for the hint:
Try: `zpool import -N; zpool import <poolname> -R /root`
... and maybe a shortened URL to help the poor sod who ever
sees the
message.
- It's taken me quite a while (of on-and-off effort) to decide whether
the
issue was with ZFS-upstream, or with the Debian package; the 'hint'
I'm
seeing in zfs-initramfs is why I'm reporting this, as it seems the
appropriate place.
- I'm at the point where I'm not sure where/how to add debug
statements to
the initramfs zfs script and have them 'stick' so I can see exactly
where and why it's failing to see my pool automatically.
* What was the outcome of this action?
I'm able to get the system booted, but it's not possible to
automatically reboot the system. Manual intervention is required
every time.
Output of `zpool get rootpool`: (Note - I've just apt upgraded to zfs-*
2.3.0-1, but haven't rebooted yet)
NAME PROPERTY VALUE SOURCE
rootpool size 3.59T -
rootpool capacity 34% -
rootpool altroot /root local
rootpool health ONLINE -
rootpool guid 1246700263549784553 -
rootpool version - default
rootpool bootfs - default
rootpool delegation on default
rootpool autoreplace off default
rootpool cachefile none local
rootpool failmode wait default
rootpool listsnapshots off default
rootpool autoexpand off default
rootpool dedupratio 1.00x -
rootpool free 2.34T -
rootpool allocated 1.25T -
rootpool readonly off -
rootpool ashift 12 local
rootpool comment - default
rootpool expandsize - -
rootpool freeing 0 -
rootpool fragmentation 9% -
rootpool leaked 0 -
rootpool multihost off default
rootpool checkpoint - -
rootpool load_guid 16122880430695053848 -
rootpool autotrim on local
rootpool compatibility off default
rootpool bcloneused 0 -
rootpool bclonesaved 0 -
rootpool bcloneratio 1.00x -
rootpool feature@async_destroy enabled local
rootpool feature@empty_bpobj active local
rootpool feature@lz4_compress active local
rootpool feature@multi_vdev_crash_dump enabled local
rootpool feature@spacemap_histogram active local
rootpool feature@enabled_txg active local
rootpool feature@hole_birth active local
rootpool feature@extensible_dataset active local
rootpool feature@embedded_data active local
rootpool feature@bookmarks enabled local
rootpool feature@filesystem_limits enabled local
rootpool feature@large_blocks enabled local
rootpool feature@large_dnode enabled local
rootpool feature@sha512 enabled local
rootpool feature@skein enabled local
rootpool feature@edonr enabled local
rootpool feature@userobj_accounting active local
rootpool feature@encryption enabled local
rootpool feature@project_quota active local
rootpool feature@device_removal enabled local
rootpool feature@obsolete_counts enabled local
rootpool feature@zpool_checkpoint enabled local
rootpool feature@spacemap_v2 active local
rootpool feature@allocation_classes enabled local
rootpool feature@resilver_defer enabled local
rootpool feature@bookmark_v2 enabled local
rootpool feature@redaction_bookmarks enabled local
rootpool feature@redacted_datasets enabled local
rootpool feature@bookmark_written enabled local
rootpool feature@log_spacemap active local
rootpool feature@livelist enabled local
rootpool feature@device_rebuild enabled local
rootpool feature@zstd_compress enabled local
rootpool feature@draid enabled local
rootpool feature@zilsaxattr active local
rootpool feature@head_errlog active local
rootpool feature@blake3 enabled local
rootpool feature@block_cloning enabled local
rootpool feature@vdev_zaps_v2 active local
-- System Information:
Debian Release: trixie/sid
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 6.12.10-amd64 (SMP w/32 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_WARN, TAINT_OOT_MODULE,
TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages zfs-initramfs depends on:
ii busybox-static [busybox] 1:1.37.0-4
ii initramfs-tools 0.145
ii zfs-dkms [zfs-modules] 2.3.0-1
ii zfsutils-linux 2.3.0-1
zfs-initramfs recommends no packages.
zfs-initramfs suggests no packages.
-- no debconf information
