[linux-lvm] Re: LVM2 + Linux 2.6.1 questions

Måns Rullgård mru at kth.se
Mon Jan 26 10:44:02 UTC 2004

"Dale Gallagher" <foobar at mighty.co.za> writes:

> Hi there
> I've successfully setup LVM2.2.00.08 and
> device-mapper.1.00.07 on a Slackware 9.1 host with Linux
> 2.6.1.  I have a question or two:
> 1) Would a shutdown error something like the following, be
> attributed to LVM and/or device-mapper?
> /proc/devices: fopen failed - no such file or directory

It's probably caused by LVM.  I see them too.  Everything works
anyway, so I don't care that much.

> 2) Why do I see, for example, a /dev/mapper/v01-home entry,
> instead of /dev/v01/home, when running 'df' and 'mount'?  I
> see that /dev/mapper/v01/home symlinks to
> /dev/mapper/v01-home, which must account for this, though I
> thought that because I'd specified /dev/v01/home, that it'd
> appear as such?  Not that this really matters I suppose ;-)

I see the /dev/vg/link name.

> $ df -h | grep v01
> /dev/mapper/v01-home  2.9G  444M  2.4G  16% /home
> /dev/mapper/v01-usr   2.0G  1.1G  760M  60% /usr
> /dev/mapper/v01-var   985M   30M  906M   4% /var
> $ mount | grep v01
> /dev/mapper/v01-home on /home type ext3 (rw)
> /dev/mapper/v01-usr on /usr type ext3 (rw)
> /dev/mapper/v01-var on /var type ext3 (rw)
> 3) Does anyone know when LVM2 specific docs, such as a
> HOWTO and FAQ will be available?

It doesn't seem like you need one, if you've gotten this far.

Måns Rullgård
mru at kth.se

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