linux-kernel - Shutdown causes fsck on USB disks

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Message-ID: <CAC=wTOhzzjrynMZv9iKSFKY7ef+YVz=iE38iVxiVuOuXoWzY-w@mail.gmail.com>
Date:   Thu, 9 Mar 2023 09:05:08 +0000
From:   Chris Ward <tjcw01@...il.com>
To:     linux-kernel@...r.kernel.org
Subject: Shutdown causes fsck on USB disks

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.