getting error when trying to install weblogic 1032+fmw 11.1.1.2 over cent os 5.8 64 bit

Dear all, i am getting following error when trying to install fmw 11.1.1.2 over cent os 5.8 64 bit

[2012-12-23T01:50:09.410-05:00] [as] [ERROR] [] [oracle.as.provisioning] [tid: 45] [ecid: 0000Jj6Glmt7i4foTWuXMs1GpdL700000^,0]
[2012-12-23T01:50:09.411-05:00] [as] [ERROR] [] [oracle.as.provisioning] [tid: 45] [ecid: 0000Jj6Glmt7i4foTWuXMs1GpdL700000^,0] [[
oracle.as.provisioning.util.ConfigException:
Error while starting the domain.
Cause:
Starting the Admin_Server timed out.
Action:
See logs for more details.
    at oracle.as.provisioning.util.ConfigException.createConfigException(ConfigException.java:123)
    at oracle.as.provisioning.weblogic.ASDomain.startDomain(ASDomain.java:3142)
    at oracle.as.provisioning.weblogic.ASDomain.startDomain(ASDomain.java:3033)
    at oracle.as.provisioning.engine.WorkFlowExecutor._startAdminServer(WorkFlowExecutor.java:1647)