Success! Sarge is commanding an old IIci To answer some questions: - MacOS can be installed with the emulator BasilsikII without a floppy or cd drive - when using a kernel with a not matching ram disk it looks like http://bastian.appenzeller.net/dsc00819.jpg. - my graphic card runs in Linux without a problem (model is something with "supermac")
The installation did not finish correctly, there was a warning with mounting or unmountig partitions. Not to be sure what to do (and needed sleep), I switched to the console and used the "poweroff" command. The installation did not come to the part where to set the root password and create a user. Next time I booted in MacOS, I was able to boot with Penguin into the new installed Linux (the root password is just pressing return). When in the system, everything seems to be OK. Need to play a little bit more with it before knowing this. Unfortunately I did not test the network (one terminator is missing) . Thanks to everybody who helped!