$ sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. uwe@taz:~/Downloads$ sudo apt-get update Hit http://archive.canonical.com raring Release.gpg Hit http://extras.ubuntu.com raring Release.gpg Hit http://ppa.launchpad.net raring Release.gpg Hit http://apt.puredata.info raring Release.gpg Hit http://archive.canonical.com raring Release Hit http://extras.ubuntu.com raring Release Hit http://archive.ubuntu.com raring Release.gpg Ign http://ppa.launchpad.net raring Release.gpg Hit http://apt.puredata.info raring Release Hit http://archive.canonical.com raring/partner Sources Hit http://extras.ubuntu.com raring/main Sources Ign http://ppa.launchpad.net raring Release.gpg Hit http://archive.ubuntu.com raring-updates Release.gpg Hit http://apt.puredata.info raring/main amd64 Packages Hit http://archive.canonical.com raring/partner amd64 Packages Hit http://extras.ubuntu.com raring/main amd64 Packages Hit http://ppa.launchpad.net raring Release.gpg Hit http://apt.puredata.info raring/main i386 Packages Hit http://archive.canonical.com raring/partner i386 Packages Hit http://archive.ubuntu.com raring-backports Release.gpg Hit http://extras.ubuntu.com raring/main i386 Packages Hit http://ppa.launchpad.net raring Release Ign http://ppa.launchpad.net raring Release Hit http://archive.ubuntu.com raring-security Release.gpg Ign http://ppa.launchpad.net raring Release Hit http://archive.ubuntu.com raring Release Hit http://ppa.launchpad.net raring Release Hit http://archive.ubuntu.com raring-updates Release Hit http://ppa.launchpad.net raring/main amd64 Packages Hit http://archive.ubuntu.com raring-backports Release Hit http://ppa.launchpad.net raring/main i386 Packages Hit http://archive.ubuntu.com raring-security Release Ign http://archive.canonical.com raring/partner Translation-en_US Ign http://extras.ubuntu.com raring/main Translation-en_US Hit http://archive.ubuntu.com raring/main Sources Ign http://archive.canonical.com raring/partner Translation-en Ign http://extras.ubuntu.com raring/main Translation-en Ign http://apt.puredata.info raring/main Translation-en_US Hit http://archive.ubuntu.com raring/restricted Sources Ign http://apt.puredata.info raring/main Translation-en Hit http://archive.ubuntu.com raring/universe Sources Hit http://archive.ubuntu.com raring/multiverse Sources Hit http://archive.ubuntu.com raring/main amd64 Packages Hit http://archive.ubuntu.com raring/restricted amd64 Packages Hit http://ppa.launchpad.net raring/main amd64 Packages Hit http://ppa.launchpad.net raring/main i386 Packages Hit http://archive.ubuntu.com raring/universe amd64 Packages Hit http://archive.ubuntu.com raring/multiverse amd64 Packages Hit http://archive.ubuntu.com raring/main i386 Packages Hit http://archive.ubuntu.com raring/restricted i386 Packages Hit http://archive.ubuntu.com raring/universe i386 Packages Hit http://archive.ubuntu.com raring/multiverse i386 Packages Hit http://archive.ubuntu.com raring/main Translation-en Hit http://archive.ubuntu.com raring/multiverse Translation-en Hit http://archive.ubuntu.com raring/restricted Translation-en Hit http://archive.ubuntu.com raring/universe Translation-en Hit http://archive.ubuntu.com raring-updates/main Sources Hit http://archive.ubuntu.com raring-updates/restricted Sources Hit http://archive.ubuntu.com raring-updates/universe Sources Hit http://archive.ubuntu.com raring-updates/multiverse Sources Hit http://archive.ubuntu.com raring-updates/main amd64 Packages Hit http://archive.ubuntu.com raring-updates/restricted amd64 Packages Hit http://archive.ubuntu.com raring-updates/universe amd64 Packages Hit http://archive.ubuntu.com raring-updates/multiverse amd64 Packages Hit http://archive.ubuntu.com raring-updates/main i386 Packages Hit http://archive.ubuntu.com raring-updates/restricted i386 Packages Ign http://ppa.launchpad.net raring/main Translation-en_US Hit http://archive.ubuntu.com raring-updates/universe i386 Packages Ign http://ppa.launchpad.net raring/main Translation-en Err http://ppa.launchpad.net raring/main amd64 Packages 404 Not Found Hit http://archive.ubuntu.com raring-updates/multiverse i386 Packages Err http://ppa.launchpad.net raring/main i386 Packages 404 Not Found Ign http://ppa.launchpad.net raring/main Translation-en_US Ign http://ppa.launchpad.net raring/main Translation-en Err http://ppa.launchpad.net raring/main amd64 Packages 404 Not Found Hit http://archive.ubuntu.com raring-updates/main Translation-en Err http://ppa.launchpad.net raring/main i386 Packages 404 Not Found Ign http://ppa.launchpad.net raring/main Translation-en_US Ign http://ppa.launchpad.net raring/main Translation-en Ign http://ppa.launchpad.net raring/main Translation-en_US Hit http://archive.ubuntu.com raring-updates/multiverse Translation-en Ign http://ppa.launchpad.net raring/main Translation-en Hit http://archive.ubuntu.com raring-updates/restricted Translation-en Hit http://archive.ubuntu.com raring-updates/universe Translation-en Hit http://archive.ubuntu.com raring-backports/main Sources Hit http://archive.ubuntu.com raring-backports/restricted Sources Hit http://archive.ubuntu.com raring-backports/universe Sources Hit http://archive.ubuntu.com raring-backports/multiverse Sources Hit http://archive.ubuntu.com raring-backports/main amd64 Packages Hit http://archive.ubuntu.com raring-backports/restricted amd64 Packages Hit http://archive.ubuntu.com raring-backports/universe amd64 Packages Hit http://archive.ubuntu.com raring-backports/multiverse amd64 Packages Hit http://archive.ubuntu.com raring-backports/main i386 Packages Hit http://archive.ubuntu.com raring-backports/restricted i386 Packages Hit http://archive.ubuntu.com raring-backports/universe i386 Packages Hit http://archive.ubuntu.com raring-backports/multiverse i386 Packages Hit http://archive.ubuntu.com raring-backports/main Translation-en Hit http://archive.ubuntu.com raring-backports/multiverse Translation-en Hit http://archive.ubuntu.com raring-backports/restricted Translation-en Hit http://archive.ubuntu.com raring-backports/universe Translation-en Hit http://archive.ubuntu.com raring-security/main Sources Hit http://archive.ubuntu.com raring-security/restricted Sources Hit http://archive.ubuntu.com raring-security/universe Sources Hit http://archive.ubuntu.com raring-security/multiverse Sources Hit http://archive.ubuntu.com raring-security/main amd64 Packages Hit http://archive.ubuntu.com raring-security/restricted amd64 Packages Hit http://archive.ubuntu.com raring-security/universe amd64 Packages Hit http://archive.ubuntu.com raring-security/multiverse amd64 Packages Hit http://archive.ubuntu.com raring-security/main i386 Packages Hit http://archive.ubuntu.com raring-security/restricted i386 Packages Hit http://archive.ubuntu.com raring-security/universe i386 Packages Hit http://archive.ubuntu.com raring-security/multiverse i386 Packages Hit http://archive.ubuntu.com raring-security/main Translation-en Hit http://archive.ubuntu.com raring-security/multiverse Translation-en Hit http://archive.ubuntu.com raring-security/restricted Translation-en Hit http://archive.ubuntu.com raring-security/universe Translation-en Ign http://archive.ubuntu.com raring/main Translation-en_US Ign http://archive.ubuntu.com raring/multiverse Translation-en_US Ign http://archive.ubuntu.com raring/restricted Translation-en_US Ign http://archive.ubuntu.com raring/universe Translation-en_US Ign http://archive.ubuntu.com raring-updates/main Translation-en_US Ign http://archive.ubuntu.com raring-updates/multiverse Translation-en_US Ign http://archive.ubuntu.com raring-updates/restricted Translation-en_US Ign http://archive.ubuntu.com raring-updates/universe Translation-en_US Ign http://archive.ubuntu.com raring-backports/main Translation-en_US Ign http://archive.ubuntu.com raring-backports/multiverse Translation-en_US Ign http://archive.ubuntu.com raring-backports/restricted Translation-en_US Ign http://archive.ubuntu.com raring-backports/universe Translation-en_US Ign http://archive.ubuntu.com raring-security/main Translation-en_US Ign http://archive.ubuntu.com raring-security/multiverse Translation-en_US Ign http://archive.ubuntu.com raring-security/restricted Translation-en_US Ign http://archive.ubuntu.com raring-security/universe Translation-en_US W: Failed to fetch http://ppa.launchpad.net/michael-astrapi/ppa/ubuntu/dists/raring/main/binary-amd64/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/michael-astrapi/ppa/ubuntu/dists/raring/main/binary-i386/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/techzilla/misc/ubuntu/dists/raring/main/binary-amd64/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/techzilla/misc/ubuntu/dists/raring/main/binary-i386/Packages 404 Not Found E: Some index files failed to download. They have been ignored, or old ones used instead. uwe@taz:~/Downloads$ sudo do-release-upgrade Checking for a new Ubuntu release No new release found