Adding Software Oracle Linux 5

I downloaded the one of the Oracle Developer Days VM and was trying to install subversion via the Add/Remove Software dialog (which is basically a GUI for yum). It turns out the VM you download points to Oracles internal yum servers. To fix this follow these steps (as root, the default password is oracle):

# cd /etc/yum.repos.d
# mv ULN-Base.repo to ULN-Base.repo.old
# wget http://public-yum.oracle.com/public-yum-el5.repo

Open the public-yum-el5.repo file in a text-editor and change the enabled flag for the first repository to enabled=1