Re-installing GRUB from within Ubuntu
 

I have installed Ubuntu 4.10 Warty Warthog, Slackware 10.1, Simply MEPIS 3.3, Windows XP Professsional.

My only problem is that I am now unable to boot to Windows.
I had already brought up this issue in my previous post. (I discontinued it because it was goin too long.)

I have decided to reinstall GRUB. How do I do that?

As root run grub, tell it which partition it's menu.lst file is on then tell it to install itself on the MBR. Grub counts from 0 so numbers are one less than normal. It also uses numbers instead of letters so for example /dev/hda5 is (hd0,4) to grub. /dev/hda3 is (hd0,2) and /dev/hdb7 is (hd1,6). So if your Ubuntu is on /dev/hda4 issue the commands

Yeah thanks man.

But, I couldn't wait too long for your post and remembered that the MEPIS CD has a simple option to install GRUB.

I installed it on the MBR.

The main reason for installing GRUB, was to be able to boot to Windows.

I am still not able to boot to windows.

I am now really upset on this one.

The GRUB entry for my Windows partition was initially like this.

I changed it to

Still no use.

My family members are stuck up with this now......They desperately want Windows XP.:(

Now, with the GRUB installed from MEPIS CD, i am really stuck up.

I need to install the gRUB from Ubuntu.
I added the lines to /boot/grub/menu.lst for mepis, but still no use.

Now, MEPIS installed grub, which failed to detect Ubuntu and Slackware.
It detected Windows, but I still can't boot to windows.

How do I install GRUB using the Ubuntu Live CD?

I don't know if this helps at all but here is my stress-free and trouble-free way of multibooting.
I install the bootloader of each operating system into the root partition of each operating system. This eliminates trying to configure lilo or grub for booting different kernels.
I have GAG installed in the MBR. GAG is a boot manager capable of booting up to nine operating systems. Gag will work with modern hardware including large drives and sata drives. Gag is free.
I can install and remove operating systems at my liesure.
I have NO trouble with this system.

I know this sounds like a GAG commercial but I tried and searched out many of these bootmanagers and all others had trouble.

http://gag.sourceforge.net/

Is that foolproof?

Just asking you as a confirmation.

I have not been able to boot to windows, no matter what I try, So can you give me some hope regarding this one plz?

i had a similar problem and i couldn't boot froom windowxp,
the problem for me was solved when i selected on my pc bios LBA mode for the HDD.
This fixed the problem for me, hope it will help you.

My computer was already LBA Mode.

Usually, selecting the LBA mode is the first step in troubleshooting such problems.

Thanks for the reply though.

Before we get all upset, let's just lay out what operating systems you've got, and their relative addresses in a format as such...
Ubuntu hd(0,1)
Windows hd(0,0)
etc

This will give us more information to help you with

I guess this is a bumped topic, and the problem no longer exists.

This was done some weeks before, and I have done a clean install after that.

Anyways, thank you f1dave.

Jeez, and it was still at the top of the list :S

Ah well, glad it's fixed.