ChromeOS | Linux Development Environment | update all applications installed using Flatpak

• Open the Linux Development Environment menu.
• From within the menu select Penguin to open a Linux Terminal windows.
• First we are going to check for update by typing:

sudo apt update

• Once the check has been completed, we next need to perform any updates that Linux has found. To do this we simply type the following:

sudo apt-get dist-upgrade

• As applications install via Flatpak have not been updated. We can use the following command to see which applications need updating:

flatpak list

• We now need to update all applications that were installed using Flatpak:

sudo flatpak update

• Flatpak will now install any updates for our applications.
• When we are once again presented with the command prompt we can close the terminal window, and use our Linux applications. 
• To close the terminal window simply typing:

exit

• When you press enter on the keyboard you will be returned to the LDE menu.

Note: Sometimes things can go wrong and you are presented with a “no remote refs found similar to flathub” error message. Based on the error message, the instance of Linux cannot find the Flathub repository for the package we are looking to download. So we need to use a specific command that will instruct Linux to repair the Flathub link.

• Mydoodads article – ChromeOS | Linux Development Environment | Update a single application in Flatpak.
• Mydoodads article – ChromeOS | Linux Development Environment | update all applications installed using Flatpak.
• Mydoodads article – ChromeOS | Linux Development Environment | uninstall an application.
• Mydoodads article – ChromeOS | Linux Development Environment | fix “no remote refs found similar to flathub” error.

• Google support article – Setup Linux on your Chromebook.
• Wikipedia –Virtual Machine.
• mydoodads article – ChromeOS | Linux Development Environment | Install Flatpak onto a Chromebook.
• Website – Flathub.
• Website – Flatpak.