glabel nor tunefs save my labels

[Roland Smith]

On Tue, May 11, 2010 at 07:08:40PM +0200, David DEMELIER wrote:
> Thanks for all your answers.
> 
> markand at Melon ~ $ sudo tunefs -p /dev/ad0s1f
<snip>
> tunefs: volume label: (-L)                                 usr
> 
> It's weird, as you can see the label is set but nothing in /dev/label,
> /dev/ufs, /dev/vol !

The labels are removed when the partition is mounted somewhere!
So, you will only see the labels of unmounted partitions/disks in devfs.

See for yourself (commands run on my 8.0-RELEASE-p2 system):

Checking that this partition is labeled;

    # tunefs -p /dev/ad6s1a
    ...
    tunefs: volume label: (-L)                                 rootbk

When it is mounted,

    # mount 
    ...
    /dev/ad6s1a on /mnt/bk/root (ufs, local)

there are no labels:

    # ls /dev/ufs/* /dev/ufsid/*
    ls: No match.

After unmounting

    # umount /dev/ad6s1a
    # ls /dev/ufs/* /dev/ufsid/*
    /dev/ufs/rootbk              /dev/ufsid/482e0880cf225c60

Both the label set with tunefs and the ufsid label appear!

Mount it again and the labels disappear again;

    # mount /mnt/bk/root
    # ls /dev/ufs/* /dev/ufsid/*
    ls: No match.

Hope this helps.

Roland
-- 

R.F.Smith                                   http://www.xs4all.nl/~rsmith/
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