[TriLUG] Linux forums other than trilug?

[Ken Mink]

Tom,
   No where in yout post did I see you mention running grub-install or
updating the first state image in the master boot record. When grub is
installed, it is told which partition grub.conf can be found on. I
think yours is still looking on /dev/hda8. You need to update the MBR
grub image to look on /dev/hdb1.
   I could be wrong and quite frequently am.

Ken


On Thu, 9 Sep 2004 08:34:15 -0400, Tom Bryan <tbryan at python.net> wrote:
> So, I've posted about this question a couple of times, and it looks like
> everyone's as stumped as I am.  I'm just about googled out.  What other high
> quality (high signal-to-ratio) forums do you all use when TriLUG can't answer
> your question?
> 
> In case anyone wants to take a crack at the original question, I'm having
> trouble with grub and a wrong kernel image version number.  I wanted to move
> my root partition, which contains both / and /boot to another hard drive.
> 
> > > Boot knoppix or equivalent, and mount the old and new partition.  It'll go
> > > faster if the two drives are on different IDE channels.
> > >
> > > cp -avx /mnt/old/* /mnt/new/
> > >
> > > I suggest reading the man page to see just what those flags are doing.
> >
> > Thanks.  That seemed to copy everything, but do I need to do something
> >  special with the kernel image?  Or am I forgetting something silly?  I'm
> >  getting the following error in grub
> >
> > kernel /boot/vmlinuz-2.4.20-8 ro root=/dev/hdb1
> > Error 15: File not found
> >
> > /dev/hda8 was my old root partition.  /dev/hdb1 is supposed to be my new
> > root partition when I'm all done.  grub.conf looks like this on both
> > partitions:
> >
> > default=0
> > timeout=10
> > splashimage=(hd1,0)/boot/grub/splash.xpm.gz
> > title Red Hat Linux (2.4.20-8)
> >         root (hd0,7)
> >         kernel /boot/vmlinuz-2.4.20-8 ro root=/dev/hda8
> >         initrd /boot/initrd-2.4.20-8.img
> > title Red Hat Linux (2.4.20-8 new hard drive)
> >         root (hd1,0)
> >         kernel /boot/vmlinuz-2.4.20-8 ro root=/dev/hdb1
> >         initrd /boot/initrd-2.4.20-8.img
> >
> > /boot/vmlinuz-2.4.20-8 was copied using cp -avx from /dev/hda8 to /dev/hdb1
> > (while they were both mounted from using Knoppix).  I ran rdev to switch
> > /boot/vmlinux-2.4.20-8 on /dev/hdb1's root device to /dev/hdb.
> 
> That's it.  :-/  I copied all of the files from one partition to another (when
> they were both mounted under Knoppix) and tried to boot.  The file really is
> /boot/vmlinuz-2.4.20-8 when I mount it under Knoppix or my initial hard drive
> (hd0,7).  Grub is the only thing that seems to see all of those (System.map,
> vmlinuz, initrd, etc.) as 2.4.18-3.  Where does it get that number?  If I
> change grub.conf to say that the kernel on (hd1,0) is vmlinux-2.4.18-3, then
> grub will try to boot it, but then it can't find /lib/modules/2.4.18-3/, of
> course.  Ugh!
> 
> I'm just about to report a bug in grub because I can't figure out how else to
> determine where 2.4.18 is coming from.
> 
> ---Tom
> 
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