Can't get Minecraft to run on Ubuntu

minecraft

I have installed JDK and JRE from this tutorial and have tried many methods of starting it up, yet my results are always the same. If any one could please help me I would be very grateful.

Exception in thread "Thread-3" java.lang.UnsatisfiedLinkError: /home/dennis/.minecraft/bin/natives/liblwjgl.so: /home/dennis/.minecraft/bin/natives/liblwjgl.so: wrong ELF class: ELFCLASS32 (Possible cause: architecture word width mismatch)
    at java.lang.ClassLoader$NativeLibrary.load(Native Method)
    at java.lang.ClassLoader.loadLibrary1(Unknown Source)
    at java.lang.ClassLoader.loadLibrary0(Unknown Source)
    at java.lang.ClassLoader.loadLibrary(Unknown Source)
    at java.lang.Runtime.load0(Unknown Source)
    at java.lang.System.load(Unknown Source)
    at org.lwjgl.Sys$1.run(Sys.java:69)
    at java.security.AccessController.doPrivileged(Native Method)
    at org.lwjgl.Sys.doLoadLibrary(Sys.java:65)
    at org.lwjgl.Sys.loadLibrary(Sys.java:81)
    at org.lwjgl.Sys.<clinit>(Sys.java:98)
    at net.minecraft.client.Minecraft.F(SourceFile:1853)
    at aoe.<init>(SourceFile:20)
    at net.minecraft.client.Minecraft.<init>(SourceFile:77)
    at anv.<init>(SourceFile:36)
    at net.minecraft.client.MinecraftApplet.init(SourceFile:36)
    at net.minecraft.Launcher.replace(Launcher.java:136)
    at net.minecraft.Launcher$1.run(Launcher.java:79)

I play minecraft and I fixed the issue by: Using oracles version of java by using the wepupd8 teams java ppa. Follow this tutorial: http://www.ubuntugeek.com/how-to-install-oracle-java-7-in-ubuntu-12-04.html

Then try this in terminal

export LD_LIBRARY_PATH="/usr/lib/jvm/java-7-oracle/jre/lib/i386"

And then:

java -jar technic-launcher-latest.jar

If that doesnt work for you, you will have to update your jwgl files by following this tutorial I wrote (included references at bottom if you would rather use them):

Install OpenJDK Java 7

sudo apt-get install openjdk-7-jre

Then download the latest copy of LWJGL from here http://lwjgl.org/download.php and extract it

Copy the following to ~/.minecraft/bin

jinput.jar
lwjgl.jar
lwjgl_util.jar

And the following to ~/.minecraft/bin/natives

libjinput-linux.so
libjinput-linux64.so
liblwjgl.so
liblwjgl64.so
libopenal.so
libopenal64.so

Then restart Minecraft

Make sure you overwrite the files that Minecraft downloads, they are out of date.

Instead of doing as the other post suggests, my cousin was kind enough to inform me of this option(source) found by searching specifically for my distro, but which will work with others having this same issue as well. Part of the problem was already solved by running the following from terminal.

If using java 7:

export LD_LIBRARY_PATH="/usr/lib64/jvm/java-1.7.0-openjdk-1.7.0/jre/lib/amd64/"

If not using java 7 you should be able to find the variable on google fairly easy, for java 6 for example you might try:

export LD_LIBRARY_PATH="/usr/lib64/jvm/java-1.6.0-openjdk-1.6.0/jre/lib/amd64/"

Now that should work but it didn't, so after reading the post above I decided to do as suggested and add to ~/.bashrc Adding anywhere in the file will be fine just copy and paste the above using gedit or nano:

gnomesu gedit ~/.bashrc

Now save or Ctrl + s and close gedit and then run the following to update bash:

source ~/.bashrc

Try running minecraft again and you should be set.

Can't get Minecraft to run on Ubuntu

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