Lennart Sorensen wrote:
On Thu, Mar 23, 2006 at 08:01:16PM -0800, David Liontooth wrote:
I cloned a drive, starting with the MBR:
dd if=/dev/hda of=/dev/hdc bs=446 count=1
However, after installing the cloned drive in the new machine, all I get
is a scrolling GRUB filling the screen. I downloaded an amd64 netboot
CD, mounted / and /boot in /target, and issued
chroot /target
Everything in there works fine -- the applications run. (I'm sitting at
another computer at this point with remote access to the installer). But
what I was counting on working, namely
grub-install /dev/hda
How about grub-install '(hd0)' ? Does that work?
When cloning a disk, you have to remember the MBR contains block maps of
where on the rest of the disk to read stage2 for grub. After that it
can read filesystems and doesn't care if files move. So doing a
grub-install on a drive after messing with the partitions is a good
idea.
Len Sorensen
Hi Len,
No, it'd didn't -- when I booted with the installation CD, chroot didn't
see the drives at all, even though chroot was running on the drive I was
trying to do a grub-install on. This is different from my experience
with boot floppies and I thought it was perhaps a change in policy. I
still don't understand why this failed -- I ended up installing a new
partition. This is amazingly user-unfriendly, so I'm trying to
understand what happened. Surely I can use an installation CD as a
rescue disk still?
SuSE -- in the old days, before I found religion -- had a feature in
their installation disk that looked at an existing installation and
sanitized it. In this case, all I wanted was to do a grub-install and I
couldn't do it.
So this is not policy? It should have worked? The command you suggest is
what I tried, along with several variants. It simply did not see the
drives. Nor could I get to the MBR outside of the chroot, as the
installer insists on setting up its own base-install before it lets you
run grub. Maybe I should ask, what is the command in the install-disk
that eventually runs grub?
I'm just amazed how continually frustrating it is to install Debian --
the experience compares with nothing else. A fresh install is obviously
way ahead of where it used to be, but a simple rescue on machines that
don't have floppy drives is still an arcane science.
Dave
--
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
