At the time of installation whether all the packages CAT**** were executed at the server, since you have created the sample database then only access will be done.

In Unix flavour, Export the Profile paths etc.( wonder any chance to create a sample database Here).

VastDBA, please check the question, he says it is PERSONAL ORACLE on HIS pc. So how on the earth you are taking him to Unix flavor, export profile bla bla bla.........?