I was expecting this to happen when I installed XP (don't worry it's only on 7Gb, Deb on other 30Gb!) but wasn't expecting it to be so confusing to fix.
Anyway I prepared myself with Knoppix but that didn't help me (most likely due to a lack of my knowledge in what to do). So I create the boot from instructions at http://www.desktop-linux.net/grub.htm.
That works fine, once I get into grub:
Filesystem type is reiserfs, partition type 0x83
[Linux-bzImage, setup=0x1400, size=0x10937c]
And it all goes fine until:
VFS: Cannot open root device "<NULL>" or unknown-block(9,0)
Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs on unknown-block(9,0)
I'm lost, confused and have a lack of sleep (thank you Bill), have no idea what to do next, if anyone has any ideas..?
Thanks in advance