dracut states that zfs 2.3.0 module is missing on Fedora

[nwildner]

System information

Type	Version/Name
Distribution Name	Fedora
Distribution Version	41
Kernel Version	6.12.9-200.fc41
Architecture	x86_64
OpenZFS Version	zfs-2.3.0-1.fc41

Describe the problem you're observing

While following the Fedora ZFS on Root documentation, I can go as far as installing all zfs related packages, build the module with /sbin/dkms autoinstall -k 6.12.9-200.fc41.x86_64 but when I try to regenerate initrd dracut fails stating that there are is zfs module available.

The only thing that it is really specific from my setup is that I already have an encrypted zpool with datasets for Arch Linux and Debian so, I'm just fiddling around with a brand new dataset for Fedora. Arch also uses zfs 2.3 and it is working great.

Describe how to reproduce the problem

• Create a dataset for Fedora
• Unpack the rootfs for fedora, chroot it and update from inside the chroot
• Install zfs rpm packages, add modules to dracut config files.
• Generate modules with /sbin/dkms autoinstall -k 6.12.9-200.fc41.x86_64
• Generate initrd with dracut --verbose --force --kver 6.12.9-200.fc41.x86_64 or by using the find script provided at the wiki.

Include any warning/errors/backtraces from the system logs

Dracut failure log.

--- snippet ---
+ dracut --verbose --force --kver 6.12.9-200.fc41.x86_64
dracut[E]: No '/dev/log' or 'logger' included for syslog logging
dracut[I]: Executing: /usr/bin/dracut --verbose --force --kver 6.12.9-200.fc41.x86_64
dracut[I]: *** Including module: systemd ***
dracut[I]: *** Including module: fips ***
dracut[I]: *** Including module: fips-crypto-policies ***
dracut[I]: *** Including module: systemd-ask-password ***
dracut[I]: *** Including module: systemd-initrd ***
dracut[I]: *** Including module: systemd-journald ***
dracut[I]: *** Including module: systemd-modules-load ***
dracut[I]: *** Including module: systemd-sysctl ***
dracut[I]: *** Including module: systemd-sysusers ***
dracut[I]: *** Including module: systemd-tmpfiles ***
dracut[I]: *** Including module: systemd-udevd ***
dracut[I]: *** Including module: nss-softokn ***
dracut[I]: *** Including module: i18n ***
dracut[I]: *** Including module: drm ***
dracut[I]: *** Including module: plymouth ***
dracut[I]: *** Including module: kernel-modules ***
dracut[I]: *** Including module: kernel-modules-extra ***
dracut[I]: *** Including module: pcmcia ***
dracut[I]: *** Including module: zfs ***
dracut-install: Failed to find module 'zfs'
dracut[E]: FAILED:  /usr/lib/dracut/dracut-install -D /var/tmp/dracut.WPlsHi/initramfs -H --kerneldir /lib/modules/6.12.9-200.fc41.x86_64/ -m zfs
dracut[F]: installkernel failed in module zfs
DebugExec: process (PID=69575) terminated with exit status: 1

DKMS status and end of log when the module was built:

--- snippet ---
Cleaning build area... done.
Building module(s).................. done.
Signing module /var/lib/dkms/zfs/2.3.0/build/module/zfs.ko
Signing module /var/lib/dkms/zfs/2.3.0/build/module/spl.ko

Running the post_build script:
Cleaning build area... done.

Installing /lib/modules/6.12.9-200.fc41.x86_64/extra/zfs.ko.xz
Installing /lib/modules/6.12.9-200.fc41.x86_64/extra/spl.ko.xz
Running depmod... done.
Autoinstall on 6.12.9-200.fc41.x86_64 succeeded for module(s) zfs.


/sbin/dkms status
zfs/2.3.0, 6.12.9-200.fc41.x86_64, x86_64: installed

zfs.conf

cat /etc/dracut.conf.d/zfs.conf 
add_dracutmodules+=" zfs "
force_drivers+=" zfs 

RPM packages:

rpm -qa | grep zfs
zfs-release-1-5.fc36.noarch
libzfs6-2.3.0-1.fc41.x86_64
zfs-dkms-2.3.0-1.fc41.noarch
zfs-2.3.0-1.fc41.x86_64
zfs-dracut-2.3.0-1.fc41.noarch

Modules:

find /lib/modules/6.12.9-200.fc41.x86_64/ | grep 'zfs\|spl.ko'
/lib/modules/6.12.9-200.fc41.x86_64/extra/zfs.ko.xz
/lib/modules/6.12.9-200.fc41.x86_64/extra/spl.ko.xz

Please let me know if any additional information is needed.

[wiesl]

Had also similar topics:

Any old kernel module versions/dkms versions?

Try:

find /var/lib/dkms/zfs -mindepth 1 -maxdepth 1 -type d | sort
e.g.
rm -rf /var/lib/dkms/zfs/2.2.3

find /var/lib/dkms/zfs -mindepth 1 -maxdepth 1 -xtype l | sort
e.g.
rm -f /var/lib/dkms/zfs/kernel-6.8.9-300.fc40.x86_64-x86_64

find /var/lib/dkms/kvdo -mindepth 1 -maxdepth 1 -type d | sort
rm -rf /var/lib/dkms/kvdo/6.2.7.17

# zfs/2.3.0 kernel 6.12.9
dnf reinstall kernel-modules-core-6.12.9-200.fc41.x86_64
# maybe also necessary
dkms install --force zfs/2.3.0 -k 6.12.9-200.fc41.x86_64
depmod -a
dracut --force --kver 6.12.9-200.fc41.x86_64
ls -l /lib/modules/6.12.9-200.fc41.x86_64
ls -l /boot