New to the forum, I had a question regarding my laptop. I have an old IBM 390e Thinkpad and I just got a 12 gb hard drive. When I start my computer up without the boot disk it reads "no operating system found". I know that I have to format and partition the new drive as well as install an os. When I use the start up disk and try fdisk, the computer is telling me that there is no fixed disk present. I had a 6.49 gb hard drive before and it was working but then one day it started doing the same thing as previously explained. I thought the 6.49 was a bad drive so I picked up the 12gb on ebay. Is there something I am missing? Any help would be awesome.