After trying to install oracle9i as oracle user using the path:
cdrom/cdrom0/runInstaller

I get the follwing error:

You do not have permission to write to the inventory
opt/oracle/oracle8i/oraInventory. Installation cannot continue.:
permission denied


It looks like it is pointing to the already installed oracle8i


Many thanks,

Abdel Mabrouk

Oracle LazyDBA home page