* Ja Bu jb_int@care2.com [20071003 01:53]:

I am quite new to GRML (and Debian/Knoppix based distributions). However, I have some experience with other Linux distris.

So recently I got a virtual appliance with Grml installed already. One of the first things was to use apt-get (first attempt) and aptitude (second attempt) to upgrade all upgradable packages. The results was the same: I could not boot anymore. The only thing that appears is 'GRUB' without any further error message.

I have spent two days already to figure out what happens. I have seen reports about similar errors when updating ubuntu versions. The reason was a switch from hdX to sdX (and a mismatch of the UUIDs).

I checked all that: UUIDs are fine. And even with the device names the symptoms are the same.

I then tried to reinstall GRUB. The installation process yielded no errors (the menu.lst and the device map are fine). Nevertheless I get the same error :-(

Ok.

Then I thought: Maybe it's only a GRUB problem and tried LILO. With lilo I get some more information, but also the boot process stops very early. I get error messages about some modules that cannot be loaded. (I currently have no access and, thus, cannot type the exact error message here.)

The last 1-2 lines of the output would be interesting.

I am wondering whether this has something to do with the linux-kernel-header-grml package which apt-get/aptitude were keen to remove?

No, linux-kernel-header-grml does not contain any files used for booting stuff.

I am also wondering: I surely am not the only one who ever upgraded a GRML 1.0 system, or? Did noone ever encountered a similar problem?

I appreciate every hint which might bring me closer to a solution of this most annoying problem.

Can you please provide the output of:

dpkg --list mdadm lvm2 initramfs-tools lilo grub udev

of the system? (Just boot grml live and chroot into your system)

If you change the root=UUID=... line within grub/lilo to something like root=/dev/... (where the later device corresponds with your root partition) - does it boot then?

JFYI: I'll try to reproduce the problem on my own here, so you definitely won't be lost with a not-bootable system.

regards, -mika-