System Recovery

[Jarod Wilson]

On Thu, 2008-07-17 at 14:41 -0400, Ben Scott wrote:
> On Thu, Jul 17, 2008 at 12:03 PM, Michael ODonnell
> <michael.odonnell at comcast.net> wrote:
> > ... silent promotion to /dev/sda and
> > all references to /dev/sdb* are (if you're lucky) now useless
> > while all references to /dev/sda* now refer to the device that
> > was formerly /dev/sdb*.
> 
>   Yah, that's why Red Hat and others have switched to using filesystem
> labels instead of physical devices to specify mounts.  Even if the
> disks moves, the label stays the same.  Of course, this ended up
> trading one set of problems for another.  In particular, by default,
> root disks from all Red Hat systems will have the same label ("/").
> If you need to put a disk from one Red Hat system in another, you now
> have two filesystems with the same label.  :-(

...which is why Red Hat (well, Fedora) and others have gone to
UUID-based mounting now. :)

(Fedora 9 does so by default, as does Ubuntu 8.04, iirc, and so will
RHEL6, more likely than not)



-- 
Jarod Wilson
jarod at wilsonet.com