Hello I have installed XP on Linux now my MBR is re-written by XP's default BOOTMANAGER but now I want to install GRUB. Is there any possible way of installin GRUB through Live-CD and moreover I have made a seperate partition for boot. Pls help me in installin in grub.

Depending on the distribution your using the steps to recover with a live-cd are different. If its a RedHat distro your using, boot up with the first CD. Type linux rescue at the boot: prompt.

You'll be asked some questions about setting up the network configuration (not needed) and which keyboard type your using. You will then be asked if you want to mount existing linux installations. Answer 'ok' to this one.

Once fully booted type chroot /mnt/sysimage. This will change you to the root directory (/) of your linux installation.
Next type grub-install /dev/hda. change the /dev entry to reflect the settings on your PC. This should re-install grub in the MBR.

Easiest way to restore grub is

1. Boot with a live CD. Login and open an (X) terminal as root.
2. Mount your installed Linux partition. Then chroot to the Linux partition (where you originally installed grub from.)
3. run grub-install /dev/hda (subsitute this with where the MBR is located) from the chroot'ed environment.

The full manual can be found here, please also check it out before your proceed
http://www.gnu.org/software/grub/man...l#Installation

Hope that helps.

MR.Slackdaemon I did wat u said but now the error is "/sbin/grub"- not found.

What distro are you using?

Since you claim XP has been installed on top of the Linux I assume you no longer have the Linux.

Grub is normally packaged inside a Linux and so installing Grub without the Linux is possible but takes a bit of understanding of Grub.

The following thread 1 and 2 (Section C) have examples of installing Grub in a data-only partition.

Yes you can source Grub from a Live CD.

Thread 1 is interesting because I made XP to boot Grub without installing a Linux. Don't think it has been done before.

When you chrooted to /mnt/sysimage did you get any warning messages? It seems that the chroot did not work so your PATH searches are relative to the root of the CD instead of /mnt/sysimage.