I tried a few discussions before deciding it would be wise to ask here. I don't know when I lost Unity desktop. I had to bank on Gnome and Cinnamon I had alongside Unity. I was using one of these alternatives while I noticed that Unity desktop is no longer an option during log in, and is missing. Most guides online say use
sudo apt-get install ubuntu-desktop
But I am having dependency issues here.
Another thing is I want to upgrade to 16.04. I thought of waiting for the point release, but would go ahead anyway now. But for that, when I use
sudo update-manager -d
I get a partial upgrade notice and it fails eventually. When I agree with Partial Upgrade option, Ubuntu says impossible to install ubuntu-desktop or something similar. The Partial Upgrade throws an error and take back to the Partial Upgrade option. Thus, I am not able to try 16.04 as well. Please help..
$ sudo apt-get install ubuntu-desktop Reading package lists... Done
Building dependency tree Reading state information... Done Some
packages could not be installed. This may mean that you have requested
an impossible situation or if you are using the unstable distribution
that some required packages have not yet been created or been moved
out of Incoming. The following information may help to resolve the
situation:
The following packages have unmet dependencies: ubuntu-desktop :
Depends: ubuntu-session but it is not going to be installed
Depends: unity-control-center but it is not going to be installed
Depends: unity-settings-daemon but it is not going to be installed
Recommends: xul-ext-webaccounts but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
sudo apt-get install -fafter it fails?