[Nottingham] What happened to my kernel?
camilo at mesias.co.uk
Thu May 17 12:55:10 BST 2007
> kernel 2.6.15-28-386
> kernel 2.6.15-28-386 (recovery mode)
> kernel 2.6.15-23-386
> kernel 2.6.15-23-386 (recovery mode)
> (and memory test)
> Sadly trying to click any of them comes up with the
> root (hd1,0)
> Error 21: selected disk does not exist
It's possible that a partial upgrade has left your grub config in an
I'd suspect that something to like IDE/SCSI/SATA driver rearrangements
in the kernel has resulted in a change in the way your disks are
numbered (I have seen this with recent Fedora test releases).
If you get a grub screen, choose any kernel and press 'e' to edit the
grub commands. Find something that looks like root (hd1,0) and
experiment with changing the 1 to a 0 (ie. (hd0,0) - you might have to
press 'e' again to edit a line, then return or 'b' to boot.
If you find a working combination then edit /etc/grub.conf or
/boot/menu.lst (should be the same file) to reflect the working (hdx,0).
There may be other problems like moving disk drivers in and out of the
kernel, and not making an initrd, but they would give different errors
(you'd boot part way before getting an error).
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