Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
If you are getting these errors while upgrading to Gutsy Gibbon.
warning: could not initiate dbus
current dist not found in meta-release
You can find the solution at Upgrade to Gutsy Gibbon, I have tried the solution and worked for me, but could not work for you, be sure to back up your /var/lib/update-manager/meta-release file first.