zfs-dkms broken

[Heiko Robert]

Ubuntu 22.04 installed on a odroid M-1 using netboot_default

5.18.0-odroid-arm64 #1 SMP PREEMPT Ubuntu 5.18.0-202205181718~jammy (2022-05-18) aarch64 aarch64

zfs kernel module is missing although zfsutils-linux have been installed without error.

# /sbin/modprobe zfs
modprobe: FATAL: Module zfs not found in directory /lib/modules/5.18.0-odroid-arm64

I tried to install/compile manually but get

Preconfiguring packages ...
Selecting previously unselected package zfs-dkms.
(Reading database ... 59206 files and directories currently installed.)
Preparing to unpack .../zfs-dkms_2.1.4-0ubuntu0.1_all.deb ...
Unpacking zfs-dkms (2.1.4-0ubuntu0.1) ...
Setting up zfs-dkms (2.1.4-0ubuntu0.1) ...
Loading new zfs-2.1.4 DKMS files...
Building for 5.18.0-odroid-arm64
Building initial module for 5.18.0-odroid-arm64
ERROR (dkms apport): kernel package linux-headers-5.18.0-odroid-arm64 is not supported
Error! Bad return status for module build on kernel: 5.18.0-odroid-arm64 (aarch64)
Consult /var/lib/dkms/zfs/2.1.4/build/make.log for more information.
dpkg: error processing package zfs-dkms (--configure):
 installed zfs-dkms package post-installation script subprocess returned error exit status 10
Processing triggers for initramfs-tools (0.140ubuntu13) ...
update-initramfs: Generating /boot/initrd.img-5.18.0-odroid-arm64
Using DTB: rockchip/rk3568-odroid-m1.dtb
Installing rockchip into /boot/dtbs/5.18.0-odroid-arm64/rockchip/
Installing rockchip into /boot/dtbs/5.18.0-odroid-arm64/rockchip/
flash-kernel: installing version 5.18.0-odroid-arm64
Generating boot script u-boot image... done.
Taking backup of boot.scr.
Installing new boot.scr.
Errors were encountered while processing:
 zfs-dkms
needrestart is being skipped since dpkg has failed
E: Sub-process /usr/bin/dpkg returned an error code (1)

/var/lib/dkms/zfs/2.1.4/build/make.log

/var/lib/dkms/zfs/2.1.4/build/module/zfs/../os/linux/zfs/zfs_sysfs.c: In function ‘zfs_kobj_init’:
/var/lib/dkms/zfs/2.1.4/build/module/zfs/../os/linux/zfs/zfs_sysfs.c:188:22: error: ‘struct kobj_type’ has no member named ‘default_attrs’
  188 | zkobj->zko_kobj_type.default_attrs = zkobj->zko_default_attrs;