Blog Archives

How to install Bumblebee on Arch Linux

In this article I will describe how to install Bumblebee on Arch Linux. The Bumblebee-Wiki provides the following description for the software: “Bumblebee is an effort to make Nvidia Optimus enabled laptops work in GNU/Linux systems. Such feature involves two graphics cards with two different power consumption profiles plugged in a layered way sharing a single framebuffer”. Please be extremely cautious throughout the whole installation procedure, depending on your system you may end up with a messed up driver or system configuration! This “How To” is based on my system, here are the most relevant specs:

  • Lenovo ThinkPad T420s
  • CPU: Intel Core i7 – 2620M with integrated GPU
  • Graphics: NVIDIA 4200M Optimus Graphics (NVIDIA GF119M)

0. Preparations
1. Installation
2. Important and useful commands
3. Troubleshooting
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How to migrate from initscripts to systemd on Archlinux

In this how to I will describe how to migrate from initscripts to the “new” systemd init system on Archlinux. Initscripts will still work, but it is recommended to switch completely to systemd.

1. Update and installation
2. Migration and configuration
3. Optional improvements
4. Useful commands
5. Troubleshooting
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How to change the Java version/enviroment in Ubuntu

If you have installed multiple Java-Versions and you want to configure your system to use one of them as the default, there is a really simple command to achieve that goal:

1) Check Java version

$ java -version
  • The output should look similar to something like this:
    java version "1.7.0_147-icedtea"
    OpenJDK Runtime Environment (IcedTea7 2.0) (7~b147-2.0-0ubuntu0.11.10.1)
    OpenJDK 64-Bit Server VM (build 21.0-b17, mixed mode)

    As you can see my systems default is set to java-7-openjdk (1.7.0_147-icedtea).

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