Where to get detailed information on failed updates?

Im running HA Generic x86-64 on an old laptop that doesn’t have UEFI. Everything works fine except some occasional updates.
This time it fails to update Home Assistant Operating System from 12.0 to 12.1.
I have looked in the logs on why the update fails but cant find anything that really points at any update related.
Can i elevate the logs for the update script/process so i can se where i fails? And if possible leave out normal boot process information.