I guess this is trivial and most commonly asked question, but I'd reiterate it again here as I'm not able to find a correct solution. I'm trying to install Ubuntu Cloud setup on VMWare using the package from http://download.ubuntu.com and have this basic installation setup issue as per the below image. file:///cdrom/pool/main/k/klibc/klibc-utils_1.5.25-1ubuntu2_amd64.deb was corrupt The issue is I cannot continue by skipping this as you know this happens to be the most important setup. How can I fix this? Help is sincerely appreciated.