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: 91.189.91.15 80]
Err Upgrade tool
404 Not Found [IP: 91.189.91.15 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!
tail -n 1 /etc/update-manager/release-upgrades
show?