Running ISO Without Burning to DVD

In order to perform the udpate you need the alternate CD that you can download from here.

You can find all the relevant instructions on how to perform the upgrade on the official ubuntu site. Of course you do not need to burn the actual CD or DVD. Once mounted, an ISO is no different than the real thing, in this case.

If you are more of a GUI than of a CLI type, then you can mount the .iso image by installing either of these two applications (both in the standard repos and they are substantially identical to your purpose):

• gisomount
• gmountiso

It's very easy. You won't have problems, you'll see! :)

HTH, mac.

It could be an issue with the drive controller it is plugged into, or it could be an issue with Windows. Did your cousin use Windows 7 to burn DL discs? Also, have you tried your burner in your cousin's computer?

Reinstalling Windows may help, but there is no way to know until you try.