The wiki page does have the software properties method documented: https://wiki.ubuntu.com/Testing/EnableProposed
I don't have software-properties-gtk installed (and until now didn't know the name of the command to launch it), so apt-add-repository was my first attempt. Thanks -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to software-properties in Ubuntu. https://bugs.launchpad.net/bugs/1829588 Title: make it easy to add proposed; help text outdated Status in software-properties package in Ubuntu: Confirmed Bug description: Adding -proposed should be as easy as running: sudo add-apt-repository proposed But this doesn't work: $ sudo add-apt-repository proposed Error: 'proposed' invalid It'd be nice if add-apt-repository could work for all of: - adding main - adding restricted - adding universe - adding multiverse - adding partners - adding proposed - adding security - adding universe Thanks To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/1829588/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp