I've installed Red Hat Linux 6.2 (RH62) on my 10GB /dev/hda. I later realized that my project would need MS-Windows NT 4 (NT4). I plugged in a 3GB on /dev/hdb but swapped it to temporarily be /dev/hda so I can install NT4. However, I'd like my RH62 to be at /dev/hda and NT at /dev/hdb. I configure lilo so that I have the following config:

boot=/dev/hda
timeout=50
prompt
default=linux
vga=normal
read-only
map=/boot/map
install=/boot/boot.b
image=/boot/vmlinuz-2.2.16-3
label=linux
root=/dev/hda1
other=/dev/hdb1
label=nt
table=/dev/hdb1

RH62 sure runs but when I choose nt at lilo prompt, nt can't boot. Why is this? Based on the documents I found on the net, I can make NT4 reside at /dev/hda and my RH62 at /dev/hdb but I it needs a lot of RH62 reconfigurations.

Thanks for the help...

NT bootloader
 

It sounds like the NT boot loader might be pointing to the wrong drive. You should be able to edit the boot.ini file the NT machine to correct that, but it might be more trouble than its worth.

Linux can most definitely reside on /dev/hdb with NO special modifications. The easiest way to fix this is probably to move the NT drive back to /dev/hda, but it still won't boot because you have overwritten the MBR with LILO most likely. So, after making that drive the Primary Master (/dev/hda), boot to a Win98 boot floppy and run FDISK /MBR to repair the boot record. After that is done and you get NT booting fine, you should be able to install Linux to /dev/hdb with NO problems.