Grub Question

English Install/Boot/Login
#1

I currently have 11.1 installed on my laptop.

Want to make a dual boot install of 11.2 on the second hard drive.

I want a simple way to revert back to 11.1.

My confusion is how the new install of 11.2 on the second hard drive handles grub. I assume the new install uses /boot/grub/menu.lst on sda, my primary hard drive?

My plan is to make a backup of /boot/grub/menu.lst on sda

Install 11.2 on sdb formatting sdb ext4

If I want to revert to 11.1 then boot to 11.1 and cp my-backup-of-menu.lst back to /boot/grub/menu.lst on sda

reboot and reformat sdb back to ext3

Will this get me back to my 11.1 OK?

#2

Just don’t write a bootloader. Then manually add an entry to 11.1 to boot 11.2

#3

Thanks caf

What would that entry look like?

64 bit install, if that matters

Wouldn’t the 11.2 install need to boot to sdb to complete the install?

#4

When the install completes it will reboot - sort of - I think it will boot up but if it doesn’t don’t worry. When you do reboot proper you’ll be back at 11.1

From 11.1 you add something like this:

#Don't change this comment - YaST2 identifier: Original name: SUSE 11.2# 
title openSUSE 11.2
root (hd0,8) 
configfile /boot/grub/menu.lst

But you can do via YaST
See swerdna’s: Linux HOWTOs and Tutorials: Suse Linux 10.0, 10.1 openSUSE 10.2, 10.3, 11.0, 11.1

Of course super grub disk will boot it regardless

#5

Thanks caf this sounds much simpler using Swerdena’s tut on using the 11.1 install disk to re-install the 11.1 boot loader