I have the same problem. It came up because I upgraded from ubuntu 18.04 LTS to 22.04 LTS (via 20.04 and then immediately upgrading again). Mainly leaving my comment here to indicate that this is an issue that affects many users.
The github issue at https://github.com/openzfs/zfs/issues/13709#issuecomment-1292880434 contains a workaround to make the system boot again after the zfs version upgrade, but imo this needs to be fixed urgently because: * Not everyone will find that workaround * Even after that workaround, old snapshots are still inaccessible * The fix seems to be easy for the repo maintainers, since the issue has been fixed in the latest version of zfs already ( as mentioned in https://github.com/openzfs/zfs/issues/13709#issuecomment-1433505102 ) @Walter thank you for the "How to apply the patch" guidance. I will try it once I have more time, since I noticed I already have zfs-dkms installed, but also a leftover kmod from 2020 and I don't feel confident that I won't break anything on accident. Does it still make sense to apply your patch, or would I rather figure out how to install zfs directly from the source from github? As far as I understand, dkms builds the kernel modules from source anyway? Cheers, lucid -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1987190 Title: ZFS unrecoverable error after upgrading from 20.04 to 22.04.1 Status in zfs-linux package in Ubuntu: Confirmed Bug description: I have a server that has been running its data volume using ZFS in 20.04 without any problem. The volume is using ZFS encryption and a raidz1-0 configuration. I performed a scrub operations before the upgrade and it did not find any problem. After the reboot for the upgrade, I was welcomed with the following message: status: One or more devices has experienced an error resulting in data corruption. Applications may be affected. action: Restore the file in question if possible. Otherwise restore the entire pool from backup. see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-8A The volumes still do not have any checksum error but there are 5 zvols that are not accessible. zpool status displays a line similar to the below for each of the five: errors: Permanent errors have been detected in the following files: tank/data/data:<0x0> I run a scrub and it has not identified any problem but the error messages are not there and the data is still not available. There are 10+ other zvols in the zpool that do not have any kind of problem. I have been unable to identify any correlation between the zvols that are failing. I have seen people reporting similar problems in github after the 20.04 to the 22.04 upgrade (see https://github.com/openzfs/zfs/issues/13763). I wonder how widespread the problem will be as more people upgrades to 22.04. I will try to downgrade the version of zfs in the system and report back ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: zfsutils-linux 2.1.4-0ubuntu0.1 ProcVersionSignature: Ubuntu 5.15.0-46.49-generic 5.15.39 Uname: Linux 5.15.0-46-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu82.1 Architecture: amd64 CasperMD5CheckResult: unknown Date: Sat Aug 20 22:24:54 2022 ProcEnviron: TERM=screen-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: zfs-linux UpgradeStatus: Upgraded to jammy on 2022-08-20 (0 days ago) modified.conffile..etc.sudoers.d.zfs: [inaccessible: [Errno 13] Permission denied: '/etc/sudoers.d/zfs'] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1987190/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
