Hey all who can help,

I have a dual boot Win XP and Ubuntu 5.10 Breezy Badger and Im getting the "Blue Screen" with UNMOUNTABLE_BOOT_VOLUME when i choose Windows in GRUB.

I was contemplating on using the Windows XP CD and using the repair utility {fixboot} to fix this issue with windows. But i was reluctant, thinking that it might rewrite the boot partition thereby screwing up GRUB. Is this true ?

How can i fix this Windows issue without it affecting GRUB or Ubuntu ?

This problem started because of some unforseen power failures while using Windows. I was using Windows and Ubuntu dual boot with GRUB for a pretty long time before this problem.

Thanks

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I post this as help, but I'm a newbie, so I STRONGLY suggest to hear someone else before to do anything.
I am a dual-booter too, and in the past I reinstalled Windows a number of times. I have GRUB as bootloader, and each time Windows overwrited the Master Boot Record with its bootloader. So, having more than one Linux partition installed on my system, I used installation disk to reinstall one of the distro with grub, and then I restored the previous menu.lst in /boot/grub.
This isn't a good way to install GRUB, I know it, but this should mean that you could use your Windows CD to do whatever you want, then reinstall GRUB (in another way than I did that time), and have back your system working.
To install GRUB from your system when only Windows is working, I think the best way is to use a Live distro able to do this. For this topic, alas, I have no suggestion...
A thing to be keep in mind is that, in my sistem, GRUB is installed in MBR. I don't know if your system is different.

Remember the first sentence of this post!

Don't be afraid of losing any boot loader, be it Windows MBR, Lilo or Grub. They all can be restored. You restore one boot loader by overwriting it on another.

Both Grub and Lilo hold their system files in /boot/grub and /etc directories respectively and can be restored as ofter as you wish.

Task B in the last link of my signature document all the commands for restoring the above 3 boot loaders. For Grub one can do it with (1) a Grub bootable floppy, (2) a Live CD, (3) Distro original installation CD if it has a rescue mode.