How to add the OpenCPN PPA into an Ubuntu system
You have two options to add the PPA to your system, either using the commandline Terminal or the GUI provided by the system, chose one that suits you better, not both.
If you are using a non-standard variant of Ubuntu or a newer/older/whatever version than the one used while creating this guide, the GUI may be slightly different, try to use common sense before you start to be furious that the guide below does not work - it does. If it still does not work for you, ask in the support forum, providing exact steps you performed and exact error output you get.
There are two PPA repositories, one for stable versions only and one that includes beta versions. If you want the beta versions replace the "ppa:opencpn/opencpn" string in the following instructions with "ppa:nohal/opencpn".
From the command line
Open a Terminal
and enter the following commands:
sudo apt-get install software-properties-common
sudo add-apt-repository ppa:opencpn/opencpn
sudo apt-get update
sudo apt-get install opencpn
Using the graphical configuration tools
Start the Ubuntu Software Center
From the Edit
menu, select Software Sources...
On the Other
tab, click on Add...
In the dialog shown, fill in ppa:opencpn/opencpn
(for stable versions) or ppa:nohal/opencpn
(for beta versions) and click on the Add Source
Wait until Ubuntu Downloads the necessary information and the progress indicator disappears
From now on you are able to install OpenCPN as any other software. You will also get new stable versions automatically while updating your system.