So, I've had Ubuntu for a good 6 months on my HP Chromebook 14. I downloaded and began playing Minecraft immediately with no problem. Then, today I go onto my laptop and open up Ubuntu. I double click my Minecraft folder and it opens up the .jar like a folder. Its marked as being allowed to execute as a program. I didn't change anything, but I've been looking on forums and haven't found this happening to anyone else. I've re-installed Minecraft multiple times,tried manually opening it from the terminal and everything but nothing has worked. If I need to re-install Ubuntu I will, but if this is fixable please like me know!


Follow these steps and your problems are gone.

Install Oracle Java 8

sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer

and then

sudo apt-get install oracle-java8-set-default

Use the minecraft-installer:

sudo add-apt-repository ppa:minecraft-installer-peeps/minecraft-installer
sudo apt-get update
sudo apt-get install minecraft-installer

Once installed, run Minecraft from the menu / Dash, login with your Minecraft account and the installation should start automatically.



Try reinstalling the openjdk package.

  1. Run sudo apt-get remove openjdk-7-jre

    If you don't have openjdk then skip to the last step

  2. NOTE - If you have a different version replace the 7 with the version number for your version
  3. Run sudo apt-get install openjdk-7-jre
That should work.

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