[aclug-L] Re: Debian From Scratch

[John Goerzen <jgoerzen@xxxxxxxxxxxx>]

On Thu, May 27, 2004 at 08:58:03AM -0500, Carl Davis wrote:
> 
> So, since for the third time I have messed up debian installation by trying 
> to compile to 2.6, I can get this CD, boot and try to fix up my screwed up 
> compiled system.  right?  Now if I only knew what to do to fix what I have 
> broken.

Yes.  In fact, you can even install one of the kernels that you boot
from on the CD.

You can, for instance, boot the CD and then:

mount /dev/hda1 /mnt
mount /dev/hda5 /mnt/usr
mount /dev/hda6 /mnt/var
mount -t proc none /mnt/proc
chroot /mnt

and you're in your regular environment.

Or, you can mount it and not do a chroot.

If your bootloader is toast, you can still boot your old Linux system
(or even a Windows partition).  When you boot the CD and the blue Grub
screen appears, press c.  Then, at the command line, use a command like:

root (hd0,0)
kernel /boot/vmlinuz-2.6.6 root=/dev/hd1
boot

Or you could boot Windows with:

root (hd0,0)
chainloader +1
boot

Grub is really slick and handy for repairing emergencies :-)

If you're really hosed, you've got all the tools to repair (or recreate)
your filesystems.  The kernel source is also on the cd under /usr/src.
Untar that into a filesystem somewhere and you can build yourself a new
kernel.

-- John

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