Solution : https://service.sap.com/sap/support/notes/855297 (SAP Service marketplace login required)
Key words : 
<instance directory>/j2ee/cluster/ server0/log/defaulttrace, log files ======================================================================= 1     general ======================================================================= ======================================================================= 2     pre-installation ======================================================================= ======================================================================= 3     installation ======================================================================= -----------------------<i031908, erp extended e-selling components, post-installation date       section      description-----------------------------------------------------------------------17/, netweaver business intelligence java components, oracle 848436    sap netweaver 2004s installation, sap j2ee engine'sdeploy service, 'install software units'24/oct/05   4           xss, sap netweaver 2004s usage types, unix 858969    sap netweaver 2004s
Related Notes : 
       
| 920016 | Contents & applying HR Support Packages ERP6.00 | 
| 919550 | DB6: SAP NetWeaver 2004s SR1 - Installation on UNIX | 
| 883286 | SAPinst: Error in step "enableUsageTypes" for ERP 2005 | 
| 858969 | SAP NetWeaver 7.0 (2004s) Installation: IBM DB2 for z/OS | 
| 856272 | (outdated)SAP Software on UNIX: OS Dependencies SAP NW04s | 
| 851169 | (Outdated)Inst: SAP NetWeaver2004s - UNIX:Oracle | 
| 847174 | DB6: SAP NetWeaver 2004s - Installation on UNIX | 
| 723909 | Java VM settings for J2EE 6.40/7.0 |