ERP5 is a full featured high end Open Source / Libre Software solution published under GPL license and used for mission critial ERP / CRM / MRP / SCM / PDM applications by industrial organisations and government agencies.
It is distributed to linux community via packages for numerous distributions (Mandriva, Debian, Ubuntu,...) and a dedicated Live CD.

Get list of all open source ERP softwares like ERP5 ERP Software.