On Tue, Mar 06, 2018 at 02:11:10PM +0100, Lukas Czerner wrote:
> > > > Seems like it only hits when mounting from fstab, I have
> > > >
> > > > LABEL=BOOT /boot auto noatime 1 2
> > > >
> > > > Anyhow, Eric's patch solved the problem.
> > >
> > > BTW which distro was this happening on?
> >
> > This is on Gentoo
> >
> > Jocke
>
> It's good that Eric's patch fixes the complainig, however the question
> is why is it trying the other fs when you have specified auto and blkid
> is able to recognize it. Weird.
>
> Do you know how the mount is called from your init script ?
>
> Can you reproduce it by running mount -a (probably using a different
> file system since it's /boot we're talking about here).
>
> If so then please can you use these debug environment variables and show
> us the output ?
>
> LIBMOUNT_DEBUG=all LIBBLKID_DEBUG=all mount -a
I guess the problem is "mount -a -t <pattern>", and it's libmount bug.
The option -t is used in two ways by mount(8), for -a it's pattern
to filter fstab, and for standard mount operation it FS type.
Unfortunately the current -a implementation does not zeroize the
pattern when try to mount the selected FS and "auto" is not translated
to FS type (because -t <type> is expected).
And there is fallback code in libmount to use /{proc,etc}/filesystems if FS is
unknown... in this file ext3 is before ext4. That's the story :-)
I'll fix it.
Anyway, it would be nice to have LIBMOUNT_DEBUG=all (or =0xffff for
old versions) output to be sure it's really the -a issue.
You can try to reproduce:
# echo 'LABEL="TESTBABY" /mnt/test auto noatime 0 0' >> /etc/fstab
# mount -av -t nosomething
Karel
--
Karel Zak <kzak@xxxxxxxxxx>
http://karelzak.blogspot.com
