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Re: Sid: Grub2 faling to boot: Unknown device UUID



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On Friday 24 July 2009, Curt Howland was heard to say:
> But when it tries to load, I get the error that "device (shows UUID
> from /boot/grub/grub.cfg) not found"

Micha Feigin <michf@post.tau.ac.il> wrote:
> I also had problems with uuid and just disabled it (you need to give 
> the appropriate device file though instead, such as root=/dev/sda1). 
> Not sure how I disabled it (not next to my linux box at the moment) 
> but try looking for a uuid option under /etc/default/grub2 
> or /etc/grub2 or something similar    

Ok, another in the continuing saga.

Sure enough, /etc/default/grub does have the entry:

=========
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter 
# to Linux
#GRUB_DISABLE_LINUX_UUID=true
=========

Removing it and running update-grub does indeed remove the UUID from 
the Linux boot command line in /boot/grub/grub.cfg:

=========
menuentry "Debian GNU/Linux, Linux 2.6.30-1-686" {
        set root=(hd0,1)
        search --no-floppy --fs-uuid --set 
8946a06a-195e-4e5d-ba10-5ebc16dbf84b
        linux   /boot/vmlinuz-2.6.30-1-686 root=/dev/hda1 ro  quiet
        initrd  /boot/initrd.img-2.6.30-1-686
=========

However, I still get the error when trying to boot that device 
8946a06a-195e-4e5d-ba10-5ebc16dbf84b is not found.

So I press "e" to edit, and remove the entire "search" line. When I do 
that, the system boots just fine.

The result of all this is that the UUID in the "search" line is what 
is now giving the error.

So now to get the UUID out of the "search" line.

Any suggestions?

Curt-

- -- 
The Magistrate, enrobed in taxes, condemns the thief in stolen rags.

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