update xbmcuntu 13.0 nach 13.1

Checking for a new Ubuntu release
Your Ubuntu release is not supported anymore.
For upgrade information, please visit:
http://www.ubuntu.com/releaseendoflife


Fehl Upgrade tool signature
  404  Not Found [IP: 2001:67c:1360:8c01::18 80]
Fehl Upgrade tool
  404  Not Found [IP: 2001:67c:1360:8c01::18 80]
Es wurden 0 B in 0 s geholt (0 B/s)
WARNING:root:file 'raring.tar.gz.gpg' missing
Failed to fetch
Fetching the upgrade failed. There may be a network problem.