I "cloned" OSX 10.4 to a 8GB USB Stick and use boot /pci@f2000000/usb1b,1/disk@1:,\\:tbxi via Open Firmware. Its a A1054, 1.2 GHz. Apple Logo shows up, then the forbidden symbol appears. Meaning either wrong OS verison or it cant find the BootX. Pointing towards the BootX, I completely fail at : boot /pci@f2000000/usb1b,1/disk@1:,/System\Library\CoreServices\Bootx:,\\:tbxi What am I missing or what am I doing wrong here ? Is that command line even 100% correct ? Maybe I will need to clone OS 9.x to the stick and boot from it, because OSX 10.4 is "too new" to boot with it ? Or shall I try to "Fire Wire with Target Disk Mode" between a A1007 and the A1054, trying OSX and/or OS 9.x ? Quite confused I am, by all the googling.