Please check is same host name assigned to any other server in your network
Are you intending to do a multi-node shared APPL_TOP installation? From which group did you download these files from edelivery? A few weeks back, I tried to do this and the installer was not working.
You can try to uncheck use shared file system if not doing a multi-node install.
Please try to change the host name and see if it works.
I will check the process again...brb