ZFS and latest kernel

Hi,

just today OMV offered me to install 6.0.0-0.deb11.2. Unluckily the current ZFS Modul openmediavault-zfs 6.0.12 is "only" the zfs version 2.1.5 which throws and error when trying to compile. Telling it is only compatible till kernel 5.18. (It was working on my 5.19 kernel without issues). The https://github.com/openzfs/zfs/releases 2.1.6 tells also it is only compatible till kernel 5.19.

Then i thought ok lets boot kernel 5.19 which is still on the system. And normaly you can edit /etc/default/grub and adjust GRUB_DEFAULT=<#> to select and alternativ kernel , after updating grub, see below.

But somehow this is not working , i can only see on the monitor one line which is kernel 6.

Any ideas what im doing wrong ?

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root@nas06:~# update-grub

Generating grub configuration file ...

Found linux image: /boot/vmlinuz-6.0.0-0.deb11.2-amd64

Found initrd image: /boot/initrd.img-6.0.0-0.deb11.2-amd64

Found linux image: /boot/vmlinuz-5.19.0-0.deb11.2-amd64

Found initrd image: /boot/initrd.img-5.19.0-0.deb11.2-amd64

done

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Zitat von ryecoaaron

Install the kernel plugin. It will help you pick which kernel to boot. It will also help you install the zfs 5.19 kernel which has the zfs module built in (no need to compile).

Hi

thanks for the quick reply. But what is "the kernel plugin " ?

Sorry if this questions sounds stupid.

Yours

Hi

thanks. Worked.

I had to install twice as it didnt finish the first time. Might that the failing zfs build for kernel 6 was an issue.