If you are Using Unity click the top icon in the dash and search for "update manager".
In the update manager click on the Settings button at the lower-left corner of the window, and entering your password if prompted to do so.
Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team.
## Uncomment the following two lines to add software from Canonical's ## 'partner' repository.
As with any other progress window, the window should have a minimize button but no maximize or close button, and should be 33 em wide.
If you stop the check, the progress window should morph into an info alert with the title “Software Updater” and primary text “You stopped the check for updates.”.
If you already have an open question at https://answers.launchpad.net/ubuntu Update Manager).
deb trusty universe deb-src trusty universe ## N. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence.
Please satisfy yourself as to ## your rights to use the software. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features.
If you do decide to re-enable such a PPA repository, I strongly suggest only enabling ONE PPA repository at a time for stability reasons, not several at the same time. Please make sure to close all open programs, including all package managers like Synaptic, Update Manager, Software Center, Add/remove programs, etc ...
No other package manager should be running while running the commands below.