Setup an Existing Octopress Repository After Git Clone

gistfile1.txt

Basically, you need to create and link the deploy directory to master branch.

First, we clone the repo and switch to the correct branch:
1) git clone https://github.com/username/username.github.io.git 
2) git checkout source

Then we need to setup the deploy directory.
1) mkdir _deploy
2) cd _deploy
3) git init
4) git remote add -t master -f origin https://github.com/username/username.github.io.git

Done! Now we can make changes in source branch and use rake gen_deploy as usual.

Using Oracle Java 7 is not formally supported by Ubuntu. There's plenty solutions for installing it, listed on https://help.ubuntu.com/community/Java .

The simplest one listed is this one:

sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java7-installer
It'll keep your java 7 installation up to date.

To automatically set up the Java 7 environment variables JAVA_HOME and PATH:

sudo apt-get install oracle-java7-set-default