Boot issues after hardware upgrade

TrueNAS General
1

I’ve had to upgrade my hardware due to a recent failure.

I tested booting on the new motherboard successfully after initial replacement, but I’ve also replaced my GT610 with an Arc A310. The GT610 required the motherboard to be in CSM mode, the new card can work in UEFI.

After swapping to the new card and booting I get an error that it can’t load the kernel (/root/25.04.2.6/boot/vmlinuz-6.12.15-production+truenas has invalid signature).

Could this be related to Secureboot (I think I ended up doing a BIOS reset after the first test when working on another problem) or due to TrueNAS being installed in CSM mode?

Would installing over the current version from a fresh ISO be worthwhile? Can I import a 25.04.2 into a 25.10 install or would I be best matching versions and completing the version update I was planning pre-hardware death.

Thanks in advance for any advice you can offer.

2

Do you have Apps, VMs or containers or is this just storage? I would make sure to download a current System Configuration and then do a fresh install and restore the System Configuration. If you have more than just storage, I would do the 25.04.2 install and then upgrade to 25.10

3

I’ve got a few container VMs and pihole and Plex app.

I’ll try disabling secureboot and retry, if that fails I’ll grab my backup from the upgrade and try a reinstall from the same version then.

4

It seems the simple answer was secureboot.

I don’t recall disabling it first time, so don’t know why it may not have been on before the CMOS clear.

Kernel loaded no issues after disabling secureboot and booted up to login.

Time to close it up and get it back into my computer room so I can network it back up!