Install Oracle XE on Ubuntu

Following some of the directions here, I did something like this:

Added

deb http://oss.oracle.com/debian unstable main non-free

to /etc/apt/sources.list and then:

# wget http://oss.oracle.com/el4/RPM-GPG-KEY-oracle  -O- | sudo apt-key add -
# apt-get update
# apt-get install oracle-xe

Then it was off and running.
$ export ORACLE_HOME=/usr/lib/oracle/xe/app/oracle/product/10.2.0/server
$ export PATH=$PATH:$ORACLE_HOME/bin
$ sqlplus sys@XE as sysdba

I used the nifty web interface http://127.0.0.1:8888/apex to make myself a new user.