Re: fsck fails with "partition in use" error after partition umount'ed
On 30 November 2014 at 17:47, Joel Roth <joelz@pobox.com> wrote:
> I notice that /dev/sdb1, an ext4 partition on a USB drive has remounted
> read-only.
>
> I try
>
> umount /dev/sdb1
>
> then
>
> fsck /dev/sdb1
>
> fsck from util-linux 2.25.2
> e2fsck 1.42.12 (29-Aug-2014)
> /dev/sdb1 is in use.
> e2fsck: Cannot continue, aborting.
>
> Is there a way that a volume can be in use without being
> mounted?
Yes. If you have disk errors (not data, disk). It'll be prominent in
your logs (if it's a SATA grep for ATA). For your sake I hope I'm
wrong or that it's just a loose connection.
You may find that the device had problems during boot, and the fsck is
'trying' to fix them - but is unable to access the disk.
<snipped>
>
> The underlying issue is that the driver detects an I/O
> error.
See comment above.
>
> Regards,
>
> Joel
>
>
> --
> Joel Roth
>
Kind regards
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