Quote Originally Posted by daviddixit View Post
It says, at the end,

Idconfig deferred processing now taking place
master@mastermind:~$

Looks good. Try
Code:
sudo apt-get install gnome-session
again, and if no go, continue along oldfred's list to the very end if necessary.
Code:
# fix Broken packages -f
sudo apt-get -f install
sudo dpkg --configure -a