Guys, thank you for your help. THis is the conclusion I have come to. There is no way (known to me) how to install additional packages from ISOs if they are required as dependency for some other RPM not from the ISO (just try to install sapdb and don't use your CDRoms). I have successfully mounted the ISOs as CD from loopback, but even then the dependency checker wouldn't accept/recognize the path. I have passed parameter through the published InstallDruid and SinglePackageWindow scripts but that didn't worked. So what worked was to mount the ISOs and manually install the dependend packages before I try to install the sapdb rpm. Thanks again for suggestions. I have had to learn much mroe about administering Linux tha I really needed to know ;-) Miro