It is very usefull to install PeopleSoft using VirtualBox (4.1.10).
This is possible to install possible on OEL or Solaris 11 x86-64 as this is now supported by Oracle.
It's even more helpfull if you can access to the installation disk on a Shared Drive.
Sadelly, this is not working yet, as you will get the following error message:
"mmap failed for CEN and END part of zip file"