Originally Posted by Lola Kews
As I said in the other post Ubuntu downloaded OK, I downloaded by Torrent.
However when I open up K3B and try to copy the file (by burn ISO image to DVD) it just hangs or I get a note saying "the image is not a valid ISO9660 image, am I sure I want to continue"
This is a pretty straight forward type of thing so I can't see that I'm doing anything wrong.
Is the drive in which you are trying to burn the ISO functioning properly? Have you recently had success at burning an ISO file with it? Do you have another PC that you could try to burn the ISO with? Can you download the ISO file directly from here: Download Ubuntu
by clicking on the download button and then burn the ISO onto a disk?
I may misunderstand you but I think there is some confusion about what an md5sum (aka hash or md5 hash) is and how to use it. An md5 hash is a long string of characters like this:
If you download an ISO you can check it’s integrity by comparing the md5 hash given on the download page (or where ever it is located on the download site) to the md5 hash that is generated when you run the md5sum command from within the folder where the ISO resides. If the two strings of characters match then you know the ISO downloaded successfully and it’s still intact.
All md5 hash for the ISO files available on the Ubuntu download page are here:
Instructions for checking an md5sum are here: How To Check MD5SUM