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Re: /sbin/update-grub: update-grub and/or installer generate wrong menue.lst - system becomes unbootable



Filippo Giunchedi wrote:
The upgrade itself went fine, but when I tried to reboot into the new
kernel, I found that lilo still showed the old boot menu, providing just
the old kernels. I installed grub.


this can be an unrelated issue to this bug and must be treated separately

I agree.



I don't know if it is possible to guess the current root device used for booting
(that would be useful though) and grub's guess is indeed wrong.


Unfortunately, I didn't remember the exact term for my raid; as the system became unbootable, the only solution was to reinstall from scratch.


have you tried to boot from a sarge's cd for example with the correct root=
option?

I was certainly a bit too enthusiastic after the smooth and wonderful upgrade to sarge. I should have been more careful in retaining boot disks etc. Unfortunately, I was (and still am) rather unexperienced regarding lilo, the main reason for installing grub. I could have known that in /etc/lilo.conf the names of the root= option are given as

root=/dev/rd/c0d0p3
boot=/dev/rd/c0d0

But unfortunately I didn't.

did you also had a look at sarge's release notes, especially
http://www.debian.org/releases/stable/i386/release-notes/ch-upgrading.en.html#s-newkernel

It would be nice, however, if grub were to automatically detect them correctly.

I would like to help further investigating how and what exactly went wrong (at the moment, I still have a backup of the server before the upgrade); as far as is possible on a production server.

Thanks for the help,

Johannes Wiedersich



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