Debian Wheezy amd64 7.5 apt-get update & upgrade => zfsonlinux broken

[dpchrist]

zfsonlinux/pkg-zfs issue:

I have a machine running Debian Wheezy amd64 7.5. This morning, I did:

# apt-get update
# apt-get upgrade

After rebooting, my ZFS on Linux pool and file systems no longer work:

# zpool list
no pools available

# zfs list
no datasets available

I believe the ZFS kernel module is loaded:

# dmesg | grep -i zfs
[   30.541398] ZFS: Loaded module v0.6.3-763_ge883253, ZFS pool

version 5000, ZFS filesystem version 5

I have a single ZFS pool that uses two disks in a mirror, and they appear
to be working:

# l /dev/mapper/ST*
/dev/mapper/ST3000DM001-9YN_S1F042HH_crypt@
/dev/mapper/ST3000DM001_1CH_W1F1R3VC_crypt@

Perhaps an additional clue:

# zpool import
zpool: ../../lib/libzfs/libzfs_import.c:356: Assertion `nvlist_lookup_uint64(zhp->zpool_config, ZPOOL_CONFIG_POOL_GUID, &theguid) == 0' failed.
Aborted

STFW I see posts about kernel module and userland mismatches (?):

https://github.com/zfsonlinux/zfs/issues/2400

One work-around seems to be manually unloading kernel modules, manually finding and removing various ZFS files, rebooting, and re-installing debian-zfs. This is more complexity/ risk than I would like to undertake.

I am not adverse to wiping the system drive, doing a fresh install of Wheezy amd64 7.5, and doing a fresh install of debian-zfs. If I did so, would I be able to recover (import?) my ZFS pool?

The best solution would be for an update of http://archive.zfsonlinux.org/debian, I do an apt-get update & upgrade, reboot, and ZFS works again.

I need to resolve this problem in a timely fashion. Please advise.

TIA,

David

[FransUrbo]

Well known, and announced well in advance on the list:

https://groups.google.com/a/zfsonlinux.org/forum/#!searchin/zfs-discuss/Turbo$20Fredriksson%7Csort:date/zfs-discuss/jAMnJf_ve1A/s5NWdaxPKK8J

You should have issued apt-get dist-upgrade, not apt-get upgrade. And the pool will 'come back' after a reboot.

[dpchrist]

On 06/23/2014 01:55 AM, Turbo Fredriksson wrote:

Well known, and announced well in advance on the list:
https://groups.google.com/a/zfsonlinux.org/forum/#!searchin/zfs-discuss/Turbo$20Fredriksson%7Csort:date/zfs-discuss/jAMnJf_ve1A/s5NWdaxPKK8J

Okay. I believe I'm subscribed now.

You should have issued apt-get dist-upgrade, not apt-get upgrade. And the pool will 'come back' after a reboot.

Problem solved -- thank you. :-)

David