Ok, this is not really a question but a tip/hint workaround etc. I was messing around and hosed up my linux installation. From XP i deleted all my partitions and rebooted to my fedora cd. I realized I hadn't done some things first so I exited install and rebooted my computer hoping to get to Winders.
Instead I got to a Grub prompt, obviously because i deleted /boot where mbr/grub was pointing. So here is what I did to boot to Winders.
@the GRUB> prompt
Then from windows I repaired my MBR. Now booting was normal again, and back to fedora install for me!
Now granted I could have just booted to dos floppy and did "fdisk /mbr" to repair the mbr, but I didn't want to have to find my usb floppy drive.
Hope this helps someone.