grub question

[justanotheruser]

hello,
I have 2 disks and the following config in my system.

disk1 sda:
sda1 : primary Lilo based installed (65MB) :I can't remember if Lilo was installed here
sda2: extended partition
sda3: logical redhat root
sda4: logical redhat swap

disk2 sdb:
sdb1: XP
sdb2: vista
sdb3: spare
sdb4: extended partition
sdb5: logical suse root
sdb6: logical suse main
sdb7: logical suse swap

Depending on the BIOS boot priority settings, the machine will boot LILO or GRUB .
The questions I have are :
1. I can't remember where LILO and GRUB were installed on the disk so :
is LILO in disk1 sda 's MBR or sda root partition?
is GRUB in disk2 sdb 's MBR or sdb root partition?
How can I find this out ?

2. How can I setup grub / menu.lst to boot the Linux version on disk1 SDA and/or how can I setup LILO.conf to boot the Linux version (suse) on disk2 SDB?
thx

[Jonathan183]

You could try the tutorials in the linked posting. If you want additional help setting up grub ...
Set BIOS to boot from disk with grub installed. Start linux and as root run

fdisk -l

and post output here. Also post the contents of /boot/grub/menu.lst file here as well.

[justanotheruser]

fdisk is not the question .fdisk doesn't tell you whether grub or lilo is in the MBR or the root partition which is what I am trying to find out.

furthermore the other question is to do chainloading from 1 drive to another drive which I don't see your link is pointing to with grub tutorial

[Jonathan183]

The Grub tutorial linked in the post explains about setting up grub if you want to have a go without further assistance ... the tutorials provide information and links to all the information you should need to setup grub to boot both versions of Linux you have on your system. It also explains how to boot Windows if it happens to be on the second hard disk.

I thought what you wanted to be able to do was boot all operating systems from a single grub menu ... I suggested if you needed further assistance that you post the output of fdisk -l so that someone helping you can be clear how the disks are being identified with the BIOS setup the way you intend using it.

It would be useful if you also post the contents of the LILO config file so that we know kernel location, name and additional parameters required.

[justanotheruser]

Keep in mind I 'd rather use GRUB/SUSE to boot to LILO/REDHAT

Here is the installation order:
SDB was connected to the system: installed XP,VISTA then SUSE/GRUB.
then connect SDA ,install REDHAT/LILO

DISK SDA will boot LILO fine
DISK SDB will boot GRUB fine

but it requires me to change BIOS settings !which is what I am trying to avoid.

I installed the LILO/REDHAT separately on disk SDA from disk SDB because of concern of corruption/space use which then will affect my XP/VISTA/SUSE usage later on

Here is the grub/menu.lst:

###for SUSE/GRUB
title openSUSE 10.3
root (hd0,4)
kernel /boot/vmlinuz-2.6.22.5-31-default root=/dev/disk/by-id/scsi-SATA_WDC_X vga=XXXX
initrd /boot/initrd-2.6.22.5-31-default

### MS bootmanager for XP /vista
title windows 1
rootnoverify (hd0,4)
chainloader (hd0,0)+1

###I AM TRYING TO GET REDHAT/LILO BOOT FROM GRUB
title redhat/lilo
root (hd1,0)
chainloader+1

[devils casper]

You have installed both lilo and GRUB in MBR of disks and chainloading will not work. You have to install one of the Boot Loader in Boot Sector of / partition.

I would suggest you to use GRUB instead of lilo because its pretty easy to tweak GRUB.

Set SuSe disk as First Boot Device in BIOS and boot it up. Mount /boot partition of RedHat and post the filenames stored in /boot. Post the output of fdisk -l command too.
We will add an entry of RedHat in SuSe GRUB and you wont have to change BIOS order after that.