1)Install Linux according to SAP note 839182. Disable firewall & SELinux
2)download j2dk1.4.2_... for linux & install it , ...............like /usr/java/jdk1.4.2_19
3)set environment Variable
like
export JAVA_HOME=/ /usr/java/j2dk1.4.2_19
export PATH=$PATH: /usr/java/j2dk1.4.2_19/bin
export SAPINST_JRE_HOME= /usr/java/j2dk1.4.2_19
export DISPLAY=<IP>:0.0
4) Dumps all related SAP sofware
and then start SAP Installtion
and also see the
http://forums.sdn.sap.com/thread.jspa?threadID=1319205&tstart=0