Booting Problem

akhiezer lfs65 at cruziero.com
Wed Dec 9 07:58:16 PST 2009


20091209: mathan kumar <newindian2005 at gmail.com> wrote:
>
> When i boot my BLFS i got the following error and i cant go further. Once i
> press enter key the system gets powered off.
>
> "The superblock could not be read or does not describe a correct ext2
> filesystem.  If the device is valid and it really contains an ext2
> filesystem (and not swap or ufs or something else), then the superblock
> is corrupt, and you might try running e2fsck with an alternate superblock:
>     e2fsck -b 8193 <device> "


I got exactly this on a recent LFS-6.5 build. Turns out the host system 
(Slackware 13.0) was naming hard-disk devices/partitions as /dev/hda, 
/dev/hda1, ..., /dev/hda4, etc. Whereas the newly-compiled LFS kernel, 
was calling the same devices/partitions as /dev/sda, /dev/sda1, ..., 
/dev/sda4, etc.

I gather/guess that the converse can happen: i.e. your host sytem 
uses '/dev/sda...' naming system, and your newly-compiled LFS-kernel 
is looking for 'dev/hda', etc; depends on your kernel config.

Ref, e.g.:
http://linuxfromscratch.org/pipermail/faq/2009-December/000399.html

As is the way of these things, the problem you're getting may of 
course be due to something else. But, hth ...



akhiezer





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