How to set up de.oddb.org on Ubuntu (only through gem)

• Install Ruby 1.8.6 with oniguruma patch
• Install gem by Ruby 1.8.6
• Install PostgreSQL 8.4
• Create a table (oddb) by the user 'oddb'

 $ su
 # adduser oddb
 # 

• Install the following gem libraries
  1. dbd-pg (0.3.9)
  2. dbi (0.4.5)
  3. de.oddb (2.0.0)
  4. deprecated (2.0.1)
  5. facets (1.8.54)
  6. odba (1.0.0)
  7. pg (0.9.0)
  8. rclconf (1.0.0)