I found a fix, although not the root cause. Apparently there is a problem with install order of jenkins and the java packages, or with the dependencies.
The problem was that in /etc/init/jenkins.conf: env JAVA_HOME="/usr/lib/jvm/default-java" But the default-java symlink wasn't there. To solve the problem I did the following (as root): cd /usr/lib/jvm ln -s java-6-openjdk default-java -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/901810 Title: Jenkins won't start on a fresh Oneiric install To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/jenkins/+bug/901810/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs