
Boot: no progress after (OK) Finished modprobe@efi_pstore.service - Load Kernel Module efi_pstore.
Ubuntu (Kubuntu) 25.10 in VirtualBox. Following an upgrade, I had just one boot failure.
The machine appears to be fine following a simple reset, but I'm curious. Is there enough in this screenshot to tell, or guess, what was wrong at the time?
I do have a snapshot of the machine in the pictured state, however I don't know whether it will be useful for diagnosis – there was no response to physical keyboard input (I did not try the soft keyboard).