Shutdown causes fsck on USB disks

[Chris Ward]

I have a (Ubuntu 22.04) system with a number of external USB disks.
When I do a 'shutdown now' with these disks mounted, on the next start
the disks have to be fsck-ed. So it seems that the disks are not
unmounted cleanly on shutdown; maybe the disks report 'completion'
before the data is really written, and the machine powers off before
allowing the unmount writes to complete.

Is this a kernel problem, or should I take it up with the Ubuntu maintainers ?

Chris Ward.