Grub error leads to more errors

[mdovell at comcast.net]

I had a crash and after resetting (10.04 version) it stated on a command line grub rescue. First time I've seen it. I have a backup of a startup disk (usb stick) 
In attempting to reinstall it gets odd. It states I have well over 150 gigs of space but when I install it states I have less than one so it won't let me reinstall! 
Anyone know how this can happen? 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.ubuntu.com/archives/ubuntu-users/attachments/20101114/d989d254/attachment.html>