Re: Virtual Device Support

[Martin <m_btrfs@ml1.co.uk>]

OK, so to summarise:


On 19/05/13 15:49, George Mitchell wrote:
> In reply to both of these comments in one message, let me give you an
> example.
> 
> I use shell scripts to mount and unmount btrfs volumes for backup
> purposes.  Most of these volumes are not listed in fstab simply because
> I do not want to have to clutter my fstab with volumes that are used
> only for backup.  So the only way I can mount them is either by LABEL or
> by UUID.  But I can't unmount them by either LABEL or UUID because that
> is not supported by util-linux and they have no intention of supporting
> it in the future.  So I have to resort to unmounting by directory ...

Which all comes to a way of working...

Likewise, I have some old and long used backups scripts that mount a
one-of-many backups disk pack. My solution is to use filesystem labels
and to use 'sed' to update just the one line in /etc/fstab for the
backups mount point label so that the backups are then mounted/unmounted
by the mount point.

I've never been able to use the /dev/sdXX numbering because the multiple
physical drives can be detected in a different order.

Agreed, that for the sake of good consistency, being able to unmount by
filesystem label is a nice/good idea. But is there any interest for that
to be picked up? Put in a bug/feature request onto bugzilla?


I would guess that most developers focus on mount point and let
fstab/mtab sort out the detail...

Regards,
Martin