PS: Can't boot after kernel upgrade

[Ralf Mardorf]

On Fri, 2010-09-17 at 15:58 +0200, I wrote:
> Hi :)
> 
> I made a kernel upgrade from 2.6.32-24-preempt #39-Ubuntu to #4x-Ubuntu,
> AFAIR it's 42.
> 
> It's nearly a default Ubuntu Studio without the needed kernel-rt,
> because I wasn't able to get a kernel-rt that's bootable for Ubuntu
> Studio on my machine.
> 
> There's just one relevant change, that wasn't a problem until now and
> that doesn't seem to be the reason for the issue I've got now:
> --- --- --- ---
> suse11-2:/home/spinymouse11.2 #
> cat /media/ubuntu_studio/usr/sbin/update-grub
> #!/bin/sh -e
> exec grub-mkconfig -o /boot/grub/grub.cfg_$(date +"%b-%d-%Y_%H-%M-%S")
> "$@"
> --- --- --- ---
> 
> I kept my manually edited menu entry, the first one, while the second
> one is the latest generated grub.cfg_$(date +"%b-%d-%Y_%H-%M-%S").
> 
> menuentry 'Ubuntu Studio 10.04, Kernel 2.6.32-24-preempt' --class ubuntu
> --class gnu-linux --class gnu --class os {
> 	recordfail
> 	insmod ext2
> 	set root='(hd1,11)'
> 	search --no-floppy --fs-uuid --set 54b5bb8c-356a-4268-8592-e76aac7941a8
> 	linux	/boot/vmlinuz-2.6.32-24-preempt
> root=UUID=54b5bb8c-356a-4268-8592-e76aac7941a8 ro   #quiet
> 	initrd	/boot/initrd.img-2.6.32-24-preempt
> }
> 
> menuentry 'Ubuntu, with Linux 2.6.32-24-preempt' --class ubuntu --class
> gnu-linux --class gnu --class os {
> 	recordfail
> 	insmod ext2
> 	set root='(hd1,11)'
> 	search --no-floppy --fs-uuid --set 54b5bb8c-356a-4268-8592-e76aac7941a8
> 	linux	/boot/vmlinuz-2.6.32-24-preempt
> root=UUID=54b5bb8c-356a-4268-8592-e76aac7941a8 ro   quiet splash
> 	initrd	/boot/initrd.img-2.6.32-24-preempt
> }
> 
> I can't boot, but get a message that
> 
> /dev/disk/by-uuid/54b5bb8c-356a-4268-8592-e76aac7941a8 does not exist
> 
> Is there something different for Ubuntu Studio compared to other Ubuntus
> regarding to those kernel problems?
> 
> My all day Linux are Hardy (64 Studio 3.0 beta) and Karmic (64 Studio
> 3.3 alpha) were self compiled kernel-rt and 64 Studio kernel-rt are ok.
> 
> Obviously /dev/disk/by-uuid/54b5bb8c-356a-4268-8592-e76aac7941a8 still
> does exist and is readable ;).
> 
> I tried to go on with fixing some issues and building mudita24, but get
> an additional issue :S.
> 
> Any help is welcome.
> 
> Cheers!
> 
> Ralf

PS:

I still can boot Ubuntu Studio kernel 2.6.32-23-preempt and I do have a
backup for Ubuntu Studio with an older 2.6.32-24-preempt, but I won't
restore this backup, because I installed some apps, fixed Ubuntu Studio,
so that PA is fine with my Envy24 card etc., but it might help to get
the current 2.6.32-24-preempt version running?!