[SATLUG] Trying to understand UUID and grub
j at jvpappas.net
Thu Nov 20 18:01:21 CST 2008
Your email indicated you were querying via /dev/sdx rather than the explicit
partition number. Can you include the contents of your /boot/grub/menu.lst
so that I can see what you are talking about?
On Thu, Nov 20, 2008 at 15:11, Charles Mims <chmims at gmail.com> wrote:
> I can see where a disk would have a guid and each partitions on it have a
> guid. But I am asking for the guid on a partition using *blkid *and
> *and getting
> two different numbers. Or at least that is what I think I am doing.
> On Thu, Nov 20, 2008 at 11:29 AM, John Pappas <j at jvpappas.net> wrote:
> > I am not using a GUID boot setup (LVM), but I am thinking that you need
> > be using the partition GUID, not the disk GUID. Try using sdxy where y
> > your root partition. You may need to specify your boot part GUID as
> > but I know at least your root partition GUID.
> > On Wed, Nov 19, 2008 at 19:34, Charles Mims <chmims at gmail.com> wrote:
> > > I am trying to understand UUID #. I understand that it is a unique ID
> > for
> > > a device.
> > > But unfortunately it seems to be able to change for partitions which
> > seems
> > > to be
> > > causing problems with GRUB. I have tried substituting /dev/sdx but
> > > doesn't
> > > seem to be the solutions. So I am trying to find out the UUID # for a
> > > partition
> > > so I can use that. How ever I seem to be getting two different #'s .
> > >
> > > #/sbin/blkid /dev/sdx gives me one UUID #. Which does not seem to
> > > with
> > > reformating the partition. However!
> > >
> > > #/sbin/vol_id /dev/sdx returns a different UUID # and that number
> > > if
> > > the
> > > partition is reformated.
> > >
> > > My concern is that installing a different distro of Linux and lettting
> > > write a new
> > > GRUB to the MBR seems to result in being unable to load the the
> > previously
> > > installed
> > > distro. Simply copying the old grub config to the new doesn't seem
> > > work.
> > >
> > > Charles
> > > --
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