PPAs are extremely useful, making installing and maintaining apps in Ubuntu and derivatives (such as Linux Mint) extremely easy. However, upgrading the system or problems/changes in the maintainer of the PPA can turn things into a pain the neck. Y PPA Manager is a tool from Web UPD8 designed specifically to keep all this under control in a easy way.
Some of the functions are:
- List the packages available in a PPA added on your system
- Download packages from PPAs without adding them
- PPAs backup / restore, along with all the PPA keys
- Update single repositories using a command line tool (by the way, when you add a PPA using Y PPA Manager, it’s updated without updating all the software sources) called “update-ppa” – usage example: “sudo update-ppa ppa:webupd8team/java”
- Some options that should help you re-enable the working PPAs when upgrading to a newer Ubuntu / Linux Mint version
- Remove duplicate PPAs
- Unity quicklists / optional AppIndicator
Installing Y PPA Manager is as easy as copy and pasting the next lines:
sudo add-apt-repository ppa:webupd8team/y-ppa-manager sudo apt update sudo apt install y-ppa-manager
If you are having problems with expired GPG keys:
We know that feeling. The maintainer of a repository changes something and suddenly we start having problems with the GPG Keys. In my case, this happens -too frequently, under my point of view- with QGIS. Luckily we can fix invalid GPG keys with a single-line command:
sudo apt-key list | \ grep "expired: " | \ sed -ne 's|pub .*/\([^ ]*\) .*|\1|gp' | \ xargs -n1 sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys
- sudo apt-key list Lists all keys installed in the system.
- grep “expired: “ Leaves only lines with expired keys.
- sed -ne ‘s|pub .*/\([^ ]*\) .*|\1|gp’ Extracts keys.
- xargs -n1 sudo apt-key adv –keyserver hkp://keyserver.ubuntu.com:80 –recv-keys Updates the expired keys with those found in the Ubuntu key server.