gijs@ranger-mb-linux:~$ sudo do-release-upgrade --devel-release
Checking for a new ubuntu release
Done Upgrade tool signature
Done Upgrade tool
Done downloading            
extracting '/tmp/tmpLBSn9i/hardy.tar.gz'
authenticate '/tmp/tmpLBSn9i/hardy.tar.gz' against '/tmp/tmpLBSn9i/hardy.tar.gz.gpg' 

Reading cache

Checking package manager
Reading package lists: Done
Reading state information: Done
Reading state information: Done
Reading state information: Done
Done http://security.ubuntu.com gutsy-security Release.gpg
Done http://us.archive.ubuntu.com gutsy Release.gpg
Hit http://security.ubuntu.com gutsy-security Release
Done http://us.archive.ubuntu.com gutsy-updates Release.gpg
Hit http://us.archive.ubuntu.com gutsy Release
Hit http://us.archive.ubuntu.com gutsy-updates Release
Done http://security.ubuntu.com gutsy-security Release
Hit http://security.ubuntu.com gutsy-security/main Packages
Hit http://security.ubuntu.com gutsy-security/restricted Packages
Hit http://security.ubuntu.com gutsy-security/main Sources
Hit http://security.ubuntu.com gutsy-security/restricted Sources
Hit http://security.ubuntu.com gutsy-security/universe Packages
Hit http://security.ubuntu.com gutsy-security/universe Sources
Hit http://security.ubuntu.com gutsy-security/multiverse Packages
Hit http://security.ubuntu.com gutsy-security/multiverse Sources
Done http://us.archive.ubuntu.com gutsy Release
Hit http://us.archive.ubuntu.com gutsy/main Packages
Hit http://us.archive.ubuntu.com gutsy/restricted Packages
Hit http://us.archive.ubuntu.com gutsy/main Sources
Hit http://us.archive.ubuntu.com gutsy/restricted Sources
Done http://us.archive.ubuntu.com gutsy-updates Release
Hit http://us.archive.ubuntu.com gutsy/universe Packages
Hit http://us.archive.ubuntu.com gutsy/universe Sources
Hit http://us.archive.ubuntu.com gutsy/multiverse Packages
Hit http://us.archive.ubuntu.com gutsy/multiverse Sources
Hit http://us.archive.ubuntu.com gutsy-updates/main Packages
Hit http://us.archive.ubuntu.com gutsy-updates/restricted Packages
Hit http://us.archive.ubuntu.com gutsy-updates/main Sources
Hit http://us.archive.ubuntu.com gutsy-updates/restricted Sources
Done downloading            

Updating repository information
Done http://us.archive.ubuntu.com hardy Release.gpg
Done http://us.archive.ubuntu.com hardy-updates Release.gpg
Done http://security.ubuntu.com hardy-security Release.gpg
Done http://security.ubuntu.com hardy-security Release
Done http://us.archive.ubuntu.com hardy Release
Done http://security.ubuntu.com hardy-security Release
Done http://us.archive.ubuntu.com hardy-updates Release
Done http://us.archive.ubuntu.com hardy Release
Done http://security.ubuntu.com hardy-security/main Packages
Done http://us.archive.ubuntu.com hardy-updates Release
Done http://security.ubuntu.com hardy-security/restricted Packages
Done http://security.ubuntu.com hardy-security/main Sources
Done http://security.ubuntu.com hardy-security/restricted Sources
Done http://security.ubuntu.com hardy-security/universe Packages
Done http://security.ubuntu.com hardy-security/universe Sources
Done http://security.ubuntu.com hardy-security/multiverse Packages
Done http://security.ubuntu.com hardy-security/multiverse Sources
Done http://security.ubuntu.com hardy-security/main Packages
Done http://security.ubuntu.com hardy-security/restricted Packages
Done http://security.ubuntu.com hardy-security/main Sources
Done http://us.archive.ubuntu.com hardy/main Packages
Done http://security.ubuntu.com hardy-security/restricted Sources
Done http://security.ubuntu.com hardy-security/universe Packages
Done http://us.archive.ubuntu.com hardy/restricted Packages
Done http://security.ubuntu.com hardy-security/universe Sources
Done http://security.ubuntu.com hardy-security/multiverse Packages
Done http://us.archive.ubuntu.com hardy/main Sources
Done http://us.archive.ubuntu.com hardy/restricted Sources
Done http://security.ubuntu.com hardy-security/multiverse Sources
Done http://us.archive.ubuntu.com hardy/universe Packages
Done http://us.archive.ubuntu.com hardy/universe Sources
Done http://us.archive.ubuntu.com hardy/multiverse Packages
Done http://us.archive.ubuntu.com hardy/multiverse Sources
Done http://us.archive.ubuntu.com hardy-updates/main Packages
Done http://us.archive.ubuntu.com hardy-updates/restricted Packages
Done http://us.archive.ubuntu.com hardy-updates/main Sources
Done http://us.archive.ubuntu.com hardy-updates/restricted Sources
Done http://us.archive.ubuntu.com hardy/main Packages
Done http://us.archive.ubuntu.com hardy/restricted Packages
Done http://us.archive.ubuntu.com hardy/main Sources
Done http://us.archive.ubuntu.com hardy/restricted Sources
Done http://us.archive.ubuntu.com hardy/universe Packages
Done http://us.archive.ubuntu.com hardy/universe Sources
Done http://us.archive.ubuntu.com hardy/multiverse Packages
Done http://us.archive.ubuntu.com hardy/multiverse Sources
Done http://us.archive.ubuntu.com hardy-updates/main Packages
Done http://us.archive.ubuntu.com hardy-updates/restricted Packages
Done http://us.archive.ubuntu.com hardy-updates/main Sources
Done http://us.archive.ubuntu.com hardy-updates/restricted Sources
Done downloading            

Checking package manager
Reading package lists: Donehardy-security/multiverse Packages: 95   
Reading state information: Done
Reading state information: Done
Reading state information: Done

Calculating the changes

Restoring original system state

Aborting
Reading package lists: Donegutsy-security/multiverse Packages: 95   
Reading state information: Done
Reading state information: Done
Reading state information: Done