Jack Byers byersj@xxxxxxxxxxx
aaron konstam responded
There are three things strange about these instructions. they are:
1. I am not sure but you are assuming that you can save the MBR on a
disk without mounting it or giving the system access to the grub.conf in
the disk. Maybe this will work but it seems strange.
2. I would expect to have to mount the disk with / and/or /boot on it.
3. Then I would expect to do chroot /mnt/sysimage
tom horsley responded to Aaron Konstam
The resuce mode boot already has copies of grub and other things
in the rescue boot image, and the raw disk devices are there even
if I don't mount them. Grub only needs access to the disk device
to write the MBR, not any mounted partitions.
These instructions do assume that your original /boot partition
and all the kernel images and grub config files are still there
on whatever (hd0,0) maps too. If they've been clobbered as well,
these instructions won't help much. In that case you'll need to mount
the disks and restore them from back (you do have backups,
right? :-).
----
jack byers response:
aaron, tom
thanks to both for your responses
I agree with tom's first paragraph above, re grub not needing mounted
partitions
tom's 2d paragraph above sounds like another response to me.
Maybe i didnt make it clear, but in the msg that aaron responded to,
I had already reported success on getting my original grub boot menu back
which i assume could only happen if indeed i had managed to restore grub
to the mbr.
to answer tom's last question, nothing else was clobbered,
so it all just worked:
my use of tom's instructions,
first booting off a knoppix cd, and
aided by an initial grub> find /boot/grub/stage1
worked perfectly
Jack
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