This project aims to ease the provisioning of an Oracle Database XE 11g instance running on Ubuntu 11.10 with 64bit. To run your Oracle Database XE 11g instance on Ubuntu 12.04 you should have a look at https://github.com/hilverd/vagrant-ubuntu-oracle-xe.
modules/oracle/files/oracle-xe-11.2.0-1.0.x86_64.rpm.zip
.vagrant up
from your checkout directory.33.33.33.10:1521/xe
with credentials sys/manager
or system/manager
.