well it started to install then it failed... now i cant boot to OS 8 disks or OS X disks :S im a bit stumped! wonder if its worth pulling the hard drive out, formatting it in a PC then reinstalling?
How big is your Hard Drive? if it is over 8GB it must have 2 partitions On it. the tray loading imacs have to have OS X on the fist partition and be no bigger then 8Gb For the boot partition
This is a Quote from lowendmac.com
If you have a hard drive over 8 GB in size, you must partition it or you will not be able to install Mac OS X. If you are creating the partition within OS X, it must be smaller than 7.4 GB as reported by Disk Utility (because sometimes a GB is billion bytes and sometimes it's 1,073,741,824 bytes); we suggest simply setting it at 7 GB to avoid having to redo the whole installation if the partition ends up bigger than specified (it happens). Mac OS X must be completely within the first 8 GB of space on your hard drive or you will not be able to run OS X.