Re: magic device renumbering was -- Re: Linux 2.4.2ac20

[Andreas Dilger <adilger@turbolinux.com>]

Christoph writes:
> In article <Pine.SGI.4.31L.02.0103141026460.532128-100000@irix2.gl.umbc.edu> you wrote:
> > drivers change their detection schemes; and changes in the kernel can
> > change the order in which devices are assigned names.
> >
> > For example, the DAC960(?) drivers changed their order of
> > detecting controllers, and I did _not_ have fun, given that the machine in
> > question had about 40 disks to deal with, spread across two controllers.
> 
> Put LABEL=<label set with e2label> in you fstab in place of the device name.
> P.S. UUID= work, too - but I prefer a human-readable label...

Works OK for ext2 only.  I'm still waiting on the reiserfs folks to add a
UUID and LABEL to their superblock.

However, for raw partitions, you will need to use LVM to get rename-safe
device labels.  You probably want LVM anyways, if you have 40 disks...

Cheers, Andreas
-- 
Andreas Dilger  \ "If a man ate a pound of pasta and a pound of antipasto,
                 \  would they cancel out, leaving him still hungry?"
http://www-mddsp.enel.ucalgary.ca/People/adilger/               -- Dogbert