The Redhat linux reboot puts me into a maintenance shell because disks are discovered and name differently.

Sam Findo sam.findo at
Tue Feb 28 19:59:02 EST 2012

In RHEL 5 same as RHEL 6 you can get the UUID by using blkid.

On Tue, Feb 28, 2012 at 7:21 PM, Barry Brimer <lists at> wrote:

> > The problem; I guess is that the system is discovering & naming the disks
> > in different order everytime the server is rebooted.  For example the
> > /dev/sda which represents the raid5 device created on local internal SAS
> > disk is discovered as /dev/sdew ... and I guess this is the reason I am
> > being dropped into the maintenance shell.  I tell this because after I
> > login to the maintenance shell I see that the /dev/sda represents a 500G
> > SAN disk instead of a 600G internal disk.  The internal disk is named
> > /dev/sdew and  if I disconnect the fibre cables; the server boots just
> > fine.
> >
> > Is there a way to make sure that the disks are named consistently across
> > reboots?
> > Please suggest or point me in the right direction.
> Your /etc/fstab and /etc/grub.conf (really /boot/grub/grub.conf) should use
> LABELs to identify filesystems, not devices.  RHEL 6 also allows you to
> specify
> filesystems by UUID.  I don't know if that works in RHEL 5 or not.
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