Having some problems! Every time I try perform the update from 12.04 to 14.04 I am met with the following error:
kev@masterpc:~$ sudo do-release-upgrade Checking for a new Ubuntu release Err Upgrade tool signature 404 Not Found [IP: 18.104.22.168 80] Err Upgrade tool 404 Not Found [IP: 22.214.171.124 80] Fetched 0 B in 0s (0 B/s) WARNING:root:file 'quantal.tar.gz.gpg' missing Failed to fetch Fetching the upgrade failed. There may be a network problem.
In the software centre under software sources I have used both servers (Australian & Main server) but to no avail. My network also appears to be fine!