Upgraded to 25.04 from 24.10 - fails to boot

Performed an in-place upgrade within the web UI - changing train from TrueNAS SCALE ElectricEel 24.10 [release] to TrueNAS SCALE Fangtooth 25.04 [release].

Default GRUB entry set to 25.04.0:


Resulting in error: checksum verification failed:

Resulting in Kernel panic:

On restart, changing GRUB to use 24.10.2.1 restores the system to a functioning state.

This is a on a HPE ProLiant MicroServer Gen10 - BIOS 5.12.

1 Like

Have you tried to do a clean 25 install to a USB / external drive and boot from that, loading your config to see if that works?

No, I have not.

I think I ran into this once. Try turning off secure boot in the BIOS.

I too had this same problem upgraded via web ui to 25.04 rebooted and no web interface.
Set back to 24.10.2.1 and all good again.

i have a similar issue with HP Proliant ML310e GEN8>
When booting 24.10.2.1 ( Fresh Install) it is all ok
When booking 25.04.0 (Fresh install) I get middleware unable to start


i have tried to delete the log files but this is a new install so the log file should be small

This is the log from journalctl -xeu middlewared.service

middlewared not starting is an issue for me and several others. I don’t work for iX, but I suggest you review this bug report: Jira

FWIW, I get the same python messages.