Re: [tlug] Kernel panic

[Brian Chandler <brian@example.com>]

Brian Chandler wrote:
<snip>
> A little Ubuntubox popped up and said "Updates? You want updates?" 
> so I clicked it.

What actually happened after that is unclear, but the system crashed, 
and I just rebooted it. I imagine that something basic, unrelated to 
whatever the specific update was, got written back wrong, or failed to 
get written back right.

> But the end result is that the system is dead. I understand that in 
> trying to boot itself Linux can't find the whateveritis on the hard 
> disk,....

I found out a bit more. The Ubuntu docs say that the installer is "not 
designed" to reinstall the whole operating system over the same 
partition, because this is almost never necessary.

Anyway, the boot message I am getting says "... unable to mount root fs 
on unknown block (0,0)." If I boot from the cdrom I can see the files 
and stuff in /dev/sda1, which I believe is (hd0,0) in grub, and the 
relevant lines from the grub menu.lst file are as follows:


title		Ubuntu 7.10, kernel 2.6.22-14-generic
root		(hd0,0)
kernel		/boot/vmlinuz-2.6.22-14-generic 
root=UUID=3840d4c7-3e25-4344-8adb-3d3e6107b8ff ro quiet splash
initrd		/boot/initrd.img-2.6.22-14-generic
quiet

title		Ubuntu 7.10, kernel 2.6.22-14-generic (recovery mode)
root		(hd0,0)
kernel		/boot/vmlinuz-2.6.22-14-generic 
root=UUID=3840d4c7-3e25-4344-8adb-3d3e6107b8ff ro single
initrd		/boot/initrd.img-2.6.22-14-generic

title		Ubuntu 7.10, memtest86+
root		(hd0,0)
kernel		/boot/memtest86+.bin
quiet

What should I look at next?

Meanwhile, I would be grateful for advice, *particularly* from non-gurus 
on the best approach to avoiding spending whole days just trying to do 
something I known nothing about. Does anyone know anything about paid 
support services - Canonical and so on? Or anything obvious that I have 
missed. Thanks.

Brian Chandler