> I had Windows NT installed on my system. I installed Redhat linux 6.0
> on the same system. But lilo gave me an error message during the
> installation process when I tried to include the NT partition in the
> boot sequence. So I omitted it for now. How can I setup the computer
> now so I can boot both systems. I have linux running now and it's
> working great of course. But I need to run NT sometimes. What should I
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> Share what you know. Learn what you don't.
You got several replies but in total they were a bit incoherent,
so let me try to go over some relevant points. I hope I
don't confuse you more.
1. Lilo can boot NT, but it has to be done in exactly the right
way or you have to be lucky. I don't know why you got an error
message during installation. See below for details.
2. If you put lilo in the master boot record, which is the default
choice, there is a good chance you made it impossible to boot
NT. I've seen machines with NT/Linux with lilo in the MBR which
worked fine---and one of the responses to your question had a
lilo.conf file doing exactly that---but every time I've tried
it, NT had indigestion. I would not put lilo in the MBR if
I were running NT. If you in fact did that, however, all is
not lost. Somewhere on the NT boot floppy or NT CD you should
find the NT fdisk. If you can put it on a bootable floppy,
even a DOS floppy, then executing the command
from the floppy should restore the master boot record. After
this NT should boot by default, but you won't be able to boot
Linux from the disk. If you made a boot floppy for Linux,
you can boot Linux using that and proceed.
3. Once you have restored the MBR and can boot NT, you can
arrange to have the NT boot loader boot both NT and Linux.
This is described in the Linux+NT mini HOWTO.
4. If this is all on one disk, the following is simpler I
believe. First, boot using your boot floppy, and configure
lilo.conf so that the first line
puts lilo in the first sector of the root partition or
if separate the boot partition. Here's an example of what
lilo.conf might look like
But lilo still won't be able to boot
because the first partition is the active partition. (When the BIOS
starts booting it looks in the MBR to see which partition
is active and goes there. So it will never get where lilo
is.) You can change this by running fdisk and toggling the
statuses of the partitions so the first partition
is no longer active and
the partition where you put lilo is active. I
don't remember if you can do this while Linux
is running from one of those partitions. If not proceed
Use your Linux boot floppy and rescue mode floppy
(if you've created them). Note it could take a very long
time to boot from the boot floppy. Alternately just boot
the Linux installation floppy, do a custom install and get to the
part where you can partition by running fdisk. Either
way run fdisk and just toggle the active partition as
described above. Now you should be able to boot both
Linux and NT.
Dept. of Mathematics, Northwestern Univ., Evanston, IL 60208