update-grub keeps on converting my root device to a uuid

[Michael Bienia]

After the upgrade to grub 0.97-11ubuntu7 upgrade-grub converts everytime my root-device from my kopt line to a uuid. I'm using a self-compiled kernel without a initrd. My kopt line looked like
# kopt=root=/dev/sda5 ro
but after running update-grub it's always converted to
# kopt=root=UUID=bb90f216-5cfb-442a-a258-7afc6f3030ad ro
The problem is my kernel doesn't boot with a UUID as root-device. Changing it back to root=/dev/sda5 works but I can't get this change permanent as update-grub keeps overwriting it.

[Paul Wagland (paul-kungfoocoder)]

It gets worse... even with the default ubuntu kernel, if your root device is on an LVM partition, you can no longer boot either.

This has already been fixed in debian:

http://packages.debian.org/changelogs/pool/main/g/grub/grub_0.97-13/changelog.html#versionversion0.97-5

[lithorus (lithorus)]

I have the same problem, but with /dev/md0. I basically have to edit the grub startup menu everytime I boot my machine.

[Pascal de Bruijn (pmjdebruijn)]

Isn't this the same as:
https://bugs.launchpad.net/ubuntu/+source/grub/+bug/62195

[Walter Tautz (wtautz)]

still a problem in feisty. The weired part is of kopt root=UUID=xxxxxbbsss ro then it will not get updated
with update-grub runs, unless one puts in kopt root=/dev/hdawhere / is mounted on /dev/hda it gets
over written with the UUID value, however, if one makes up some crap like

kopt root=axyaljdfljdglkj ro

it will not get updated.....

clearly what should happen is # kopt should never be modified, after all it's suppose to be edited by
humans. If a human makes a mistake so be it. The program shouldn't presume to do something for me.

Second it could support some kind of method option, i.e., if I say kopt root=UUID then it will make a point
of looking up the UUID of the root device, presumably via vol_id and substitute that value for the various
cmdline parameters for the kernels found in /boot and not overwrite the option kopt!

[Hauke Zuehl (hzuehl)]

Just a question:
Where do I have to look to fix that bug?

Regrads,
Hauke