Oracle: Desinstalando completamente

Tengo instalado Oracle XE 10.2.0.1-1.1 en mi Ubuntu. Hace unos días quería reinstalarlo porque las bases de datos se desbarataron después de que se corrompieron por un freeze del sistema. Intentaba deinstalarlo de muchas maneras y por alguna razón me quedaba mal instalado y tampoco podía reconfigurarlo apareciendome el mensaje:

Oracle Database 10g Express Edition is already configured

Después de sufrir un rato intentando varias soluciones, tuve éxito ejecutando el siguiente comando que limpia totalmente la instalación: 'sudo apt-get --purge remove oracle-xe-universal'

$ sudo apt-get --purge remove oracle-xe-universal
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following package was automatically installed and is no longer required:
  libdb4.8
Use 'apt-get autoremove' to remove them.
The following packages will be REMOVED:
  oracle-xe-universal:i386*
0 upgraded, 0 newly installed, 1 to remove and 58 not upgraded.
After this operation, 451 MB disk space will be freed.
Do you want to continue [Y/n]? Y
(Reading database ... 223556 files and directories currently installed.)
Removing oracle-xe-universal:i386 ...
Shutting down Oracle Database 10g Express Edition Instance.
Stopping Oracle Net Listener.

Purging configuration files for oracle-xe-universal:i386 ...
Processing triggers for ureadahead ...
Processing triggers for man-db ...
Processing triggers for bamfdaemon ...
Rebuilding /usr/share/applications/bamf.index...
Processing triggers for desktop-file-utils ...
Processing triggers for gnome-menus ...