Arch Linux User Repository

OpenZFS currently supports Linux kernel versions 4.18 - 6.14, as declared in the META file.

Options if your Linux kernel's version is not within that range:

1) Switch to another Linux kernel, such as linux-lts.

2) Prevent your kernel package from upgrading to an unsupported version until OpenZFS increases the maximum supported kernel version.

3) Modify this package to support your kernel by patching it on your local machine.

When requesting changes, please include detailed reasoning for the change.

If you receive this error when trying to build, it is because you have not imported the GPG keys used for verification.

==> ERROR: One or more PGP signatures could not be verified!

You have two options:

1) Import the two keys into your keyring. ArchWiki article. You can find the key IDs in the PKGBUILD file, in the validpgpkeys array. (recommended)

2) Alternatively, you can skip this verification by passing the --skippgpcheck argument to makepkg when building. (not recommended)

I don't think there's really much that depends too closely on the kernel version, I just add --ignore=linux --ignore=linux-zen --ignore=linux-headers --ignore=linux-zen-headers to my yay command and I can't think of a single time this has caused an issue for me yet. Obviously this does mean you aren't getting any kernel updates, mind, so if you are in a situation where most security updates are key I guess the LTS kernel is a safer bet.

Until zfs gets bumped upstream, I think a better solution is to run linux-lts so you can still keep the rest of your system packages updated.

Otherwise, you'll see something like this:

==> dkms install --no-depmod zfs/2.1.12 -k 6.5.3-hardened1-1-hardened
configure: error: 
        *** None of the expected "bops->release()" interfaces were detected.
        *** This may be because your kernel version is newer than what is
        *** supported, or you are using a patched custom kernel with
        *** incompatible modifications.
        ***
        *** ZFS Version: zfs-2.1.12-1
        *** Compatible Kernels: 3.10 - 6.3

Error! Bad return status for module build on kernel: 6.5.3-hardened1-1-hardened (x86_64)
Consult /var/lib/dkms/zfs/2.1.12/build/make.log for more information.
==> WARNING: `dkms install --no-depmod zfs/2.1.12 -k 6.5.3-hardened1-1-hardened' exited 10

Assuming you haven't cleared your pacman cache in the interim and have updated to a non-working kernel version, you should be able to just install the old packages from /var/cache/pacman/pkg rather than having to switch to a different kernel. I always keep an eye on the output of the DKMS build step after major kernel releases and roll back if it fails to build.

If you're reckless like me and updated without reading the notes informing that zfs is broken on 6.5 just install linux-lts and linux-lts-headers for the time being, dont forget to update your bootloader to boot into linux-lts.

Stay on 6.4.12 for time being, do not take linux or linux-headers until this package is updated to support 6.5

Linux 6.5 version errors out while building the dkms

==> dkms install --no-depmod zfs/2.1.12 -k 6.5.2-arch1-1
^[[24~configure: error: 
    *** None of the expected "bops->release()" interfaces were detected.
    *** This may be because your kernel version is newer than what is
    *** supported, or you are using a patched custom kernel with
    *** incompatible modifications.
    ***
    *** ZFS Version: zfs-2.1.12-1
    *** Compatible Kernels: 3.10 - 6.3

the current version is not compatible with Linux kernel v6.5, so if you using that, don't upgrade

@sgh: You need to build both and then install both at the same time. There's an option for this in paur, there is probably one for pacaur too.

pacaur -S zfs-dkms fails and gives me this. It seems like zfs-dkms and zfs-utils are not in sync.

==> Finished making: zfs-utils 2.1.12-1 (Wed Jun 7 23:13:31 2023) ==> Cleaning up... :: Installing zfs-utils package(s)... loading packages... resolving dependencies... looking for conflicting packages... error: failed to prepare transaction (could not satisfy dependencies) :: installing zfs-utils (2.1.12-1) breaks dependency 'zfs-utils=2.1.11' required by zfs-dkms :: Building zfs-dkms package(s)... ==> Making package: zfs-dkms 2.1.12-1 (Wed Jun 7 23:13:32 2023)

ZFS 2.1.12, which adds official support for the Linux 6.3 kernel, has been released!