# 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
Examples, Annoyances and Peculiarities with Oracle, Java and BI Publisher
# cd /etc/yum.repos.d
# mv ULN-Base.repo to ULN-Base.repo.old
# wget http://public-yum.oracle.com/public-yum-el5.repo