I'd like to move my Fedora drive into a machine that has windows xp on it now. The drive is currently sda in it's machine. It will end up being sdb in the next setup. I've already made a copy of the boot sector of the Fedora drive and copied it to c: on the xp machine. I've also set up NTLDR to refer to that boot sector file.
Now in a few days, I will be getting a nice new case and power supply. I think that I'll have to edit the grub config file and the fstab file.

I'd appreciate comments on the chances of this working.

device.map:

# this device map was generated by anaconda
(hd0) /dev/sda

proposed change

# this device map was generated by anaconda
(hd1) /dev/sdb

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
grub.config:

# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You do not have a /boot partition. This means that
# all kernel and initrd paths are relative to /, eg.
# root (hd0,0)
# kernel /boot/vmlinuz-version ro root=/dev/sda1
# initrd /boot/initrd-version.img
#boot=/dev/sda
default=0
timeout=5
splashimage=(hd0,0)/boot/grub/splash.xpm.gz
hiddenmenu
title Fedora (2.6.24.7-92.fc8)
root (hd0,0)
kernel /boot/vmlinuz-2.6.24.7-92.fc8 ro root=LABEL=/1 rhgb quiet
initrd /boot/initrd-2.6.24.7-92.fc8.img
title Fedora (2.6.24.5-85.fc8)
root (hd0,0)
kernel /boot/vmlinuz-2.6.24.5-85.fc8 ro root=LABEL=/1 rhgb quiet
initrd /boot/initrd-2.6.24.5-85.fc8.img


proposed change

# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You do not have a /boot partition. This means that
# all kernel and initrd paths are relative to /, eg.
# root (hd0,0)
# kernel /boot/vmlinuz-version ro root=/dev/sda1
# initrd /boot/initrd-version.img
#boot=/dev/sdb
default=0
timeout=5
splashimage=(hd1,0)/boot/grub/splash.xpm.gz
hiddenmenu
title Fedora (2.6.24.7-92.fc8)
root (hd1,0)
kernel /boot/vmlinuz-2.6.24.7-92.fc8 ro root=LABEL=/1 rhgb quiet
initrd /boot/initrd-2.6.24.7-92.fc8.img
title Fedora (2.6.24.5-85.fc8)
root (hd1,0)
kernel /boot/vmlinuz-2.6.24.5-85.fc8 ro root=LABEL=/2 rhgb quiet
initrd /boot/initrd-2.6.24.5-85.fc8.img
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fstab:

LABEL=/1 / ext3 defaults 1 1
LABEL=/home /home ext3 defaults 1 2
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
LABEL=SWAP-sda2 swap swap defaults 0 0


proposed change

LABEL=/2 / ext3 defaults 1 1
LABEL=/home /home ext3 defaults 1 2
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
LABEL=SWAP-sdb2 swap swap defaults 0 0

I don't know how to interpret your fstabs (what's that LABEL thing do?), but you have the right idea. Use ntldr to chain to Grub, and alter menu.lst and 'fstab' to account for the fact that the drive is now 'sdb'.