[K12OSN] restore backup with chroot + grub-install

[Robert Arkiletian]

I backed up our RH9 server today using tar to save both / and /home 
partitions to a mobile drive. Wondering if I can use a different version 
of grub to restore once I untar to the new drive. I'm thinking "chroot 
/sbin/grub-install". (Not sure of syntax for chroot and grub-install). 
Can someone explain it.  Do I use grub on gnoppix or the untared RH9 
that I'm restoring? Also booting with gnoppix, grub is version .95 and 
in RH9 it's 0.93. Does it matter if the version of grub is different? 
BTW the server has / on /dev/sda1 and the backup drive with the tar 
files is /dev/hdb3 which I would mount from gnoppix as /mnt/hdb3

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Robert Arkiletian
C++ GUI tutorial http://fltk.org/links.php?V219