Grub and two installed distros (Fedora 4 and Mandriva LE2005)

08-15-2005	#1 (permalink)
jpalfree Linux Newbie Join Date: Jul 2005 Location: Montreal, CA Posts: 198	Grub and two installed distros (Fedora 4 and Mandriva LE2005) Hi, Grub already can boot fedora core 4 but i'd like to configure grub to boot mandriva aswell. I installed the lilo booter to a floppy and can start mandriva like that but i'd like grub to handle it. I"m sure there's an easy way to do it... probably edit /boot/grub.conf... but i don't know how. Can someone explain?

08-15-2005

#2 (permalink)

dylunio

Linux Guru

Join Date: Aug 2004

Location: Cymru

Posts: 4,157

Ok, it's quite easy to do this.

For my examples Mandriva will be hda3 and Fedora will be hda2 - change them to whatever the drives are.

Firstly mount the mandriva partition with

Code:

su
[rootpass]
mkdir /mnt/mandriva
mount /dev/hda3 /mnt/mandriva
ls /mnt/mandriva/boot

this will give an output like

Quote:

README.initrd System.map-ide-2.4.26 config-ide-2.4.26 vmlinuz
System.map config diag1.img vmlinuz-ide-2.4.26
System.map-2.6.11 config-2.6.11

I've hightlighted the inportant filename, this is the file you point grub at to boot.

Now let's edit the /boot/grub/grub.conf file. You should add a stanza like this:

Quote:

title Mandriva
kernel (hd0,2)/boot/vmlinuz root=/dev/hda3

Notice the (hd0,2) which is how grub names partitions and drives, this table should help you decice the right name for your mandriva partition and drive.

Quote:

/dev/hda1 (hd0,0) First hard disk on first IDE cable, first partition
/dev/hda2 (hd0,1) First hard disk on first IDE cable, second partition
/dev/hda3 (hd0,2) First hard disk on first IDE cable, third partition
/dev/hdb1 (hd1,0) Second hard disk on first IDE cable, first partition
/dev/hdb2 (hd1,1) Second hard disk on first IDE cable, second partition
/dev/hdb3 (hd1,2) Second hard disk on first IDE cable, third partition
/dev/hdc1 (hd2,0) First hard disk on second IDE cable, first partition
/dev/hdc2 (hd2,1) First hard disk on second IDE cable, second partition
/dev/hdc3 (hd2,2) First hard disk on second IDE cable, third partition
/dev/hdd1 (hd3,0) Second hard disk on second IDE cable, first partition
/dev/hdd2 (hd3,1) Second hard disk on second IDE cable, second partition
/dev/hdd3 (hd3,2) Second hard disk on second IDE cable, third partition

dylunio

__________________
Registered Linux User #371543!
Get force-get

May The Source Be With You

/dev/null
/dev/null2

08-15-2005	#3 (permalink)
jpalfree Linux Newbie Join Date: Jul 2005 Location: Montreal, CA Posts: 198	Success! Thanks very much! i did things a bit differently though. what i added to grub.conf is this: Code: title mandriva root (hda0, 4) kernel /boot/vmlinuz ro root=/dev/sda5 (because it's sata hard drive?) initrd /boot/initrd.img and it works... now it's on to another battle... not hearing anything from a detected motherboard soundcard... :S

08-16-2005	#4 (permalink)
dylunio Linux Guru Join Date: Aug 2004 Location: Cymru Posts: 4,157	I'm glad that I was able to help you setup grub __________________ Registered Linux User #371543! Get force-get May The Source Be With You /dev/null /dev/null2