Jack Byers byersj@xxxxxxxxxxx
tom horsley:
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? :-).
aaron konstam:
Ok, I am just being picky. What you are saying is ok as long as:
1. The rescue disk is for the same version of FC as the system whose MBR
you are updating.
2. The system on hd0 has not had its grub updated in any way.
In most cases that will be true but for many of us who grab the first
rescue disk we have available you instructions will get you in trouble
---
aaron,
your comment 1. doesn't seem to jibe with my experience:
i used a knoppix cd to reboot and run those cmds
to restore the mbr on an fc5 system
Jack
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