quik to boot into debian command-option-o-f at boot to enter OF if your output-device is set correct then bye to boot from the MacOS selected in your Startup disk control panel or boot to continue booting Debian from disk
Mac should have two partitions (one per system folder), although there is a utility called system picker which allows you to "bless" a system folder to boot from. haven't played with OS9, but above works with 7.5.5,8.1,8.5/8.6,debian and OF 1.0.5 on a s900(9500 clone) w/2x604e's. OT: BTW, MacOS 7.5 is a free download
