[ubuntu] Ubuntu installer crashing

view full story

http://ubuntuforums.org – Im trying to install ubuntu 12.04 LTS on my desktop (Dell E521) I ran DBAN before this and i think it might have something to do with it. When i go to install Ubuntu i get a error saying "The following file does not match its source copy on the CD/DVD: /target/lib/firmware/ar9170-1.fw This is often due to a faulty CD/DVD disk or Drive. or a fualty hard disk. If i skip it, this error comes up... The installer encountered an error copying files to the hard disk [Errno 5] Input/output error I have tried using a CD and a USB stick to intstall it and i get the same th (Hardware)