ZFS Issue on Rocky 8.10

Rocky Linux Help & Support
1

We have Rocky 8.10 installed with kernel (4.18.0-553.22.1.el8_10.x86_64) and installed zfs-2.1.16 from the zfsonlinux repo.

Earlier we had installed zfs-2.2.6 version and created zpool with same version. Now it is conflicting with zfs-2.1.16 version.

  1. How can we fully remove remains of zfs-2.2.6 as it is still showing when running “zpool version” and even after destroying the zpool with “zpool destroy -f ”

  2. How can we create zpool version that is compatible with zfs-2.1.16.

The command zpool version shows:
zfs-2.2.6-1
zfs-kmod-2.2.6-1

2

That is a question about ZFS, so people at “zfsonlinux” should know better.

AFAIK, the ZFS 2.1 is already almost out of support as development has focused on the newer versions. What made you to attempt to downgrade from 2.2 to 2.1?

3

Thanks,I have asked on zfsonlinux. Btw, zfs-2.1.16 was updated in Dec 2024. We choose to downgrade as in 2.2.6 all modules didn’t load & they haven’t added 2.2 & 2.3 in a repo yet, which causes issues while upgrading the zfs. We need a configuration that is easily upgradable in the long run.

Here is the output:

lsmod | grep zfs
zfs 5578752 0
spl 122880 1 zfs

This is what we require:

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