Failed to start zfs-import after upgrading to PVE 8 from 7.4

Oct 2, 2022
Hi all,

i was testing the upgrade from 7.4 to 8 on one of my lokal nodes. The upgrade itself went fine and I was able to create a new test lxc etc.

But after restarting the node it does not boot up. After connecting a monitor I saw that during the boot process the following error occurs:

failed to start zfs-import@vm\x2ddata.service - Import ZFS pool vm\x2ddata

Before this the message is displayed that sof firmware file is mossing. and therefore failed to load DSP firmware and sof_probe_work failed.

The installation has been done with the installation Medium (USB stick) from Proxmox 2 years ago (Version 6 If I recall correctly) and since then I had no problems upgrading.

Any hints what do do now?

Update: I managed to boot into rescue mode but there is no network connection. I configured the node with static ipv4 but this seems to not work in rescue mode. Restarting networking service get stuck in infinity mode no error etc.

Update#2: I finally managed via live installer to chroot the system. Seems for my Lenovo machine I need to add non-free-firmware to the sources and install than with apt install eof-firmware-signed the package.

Now the error did not came up anymore but the failed to start zfs still exists. When I boot into recovery mode I can import and check the pool and everything seems fine but still during startup the service fails.

Any hints on this?
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