Can I boot in Target Mode if the hard disk is bad?
Just curious, if the hard disk is bad, can I still boot in to Target Mode ? To paraphrase, do I need to have a working hard drive and OS in order to boot in Target Mode?
Up to a point...
If your drive is having problems you may have a problem gaining access to it with any method.
Target mode does not use your HD's OS, so going into it won't be the issue. Access to the HD from the other system could be a problem because of the condition of your HD. Try cooling your system in your refrigerator for a few hours if you have problems. Sometimes cooling can help in accessing a drive thats going.
Update: A 600 MHz G3 iBook was brought to me. Symptom was it gets perpetually stuck in the opening screen with the Apple logo and spinning wheel icon on boot. Hard drive problem with OS, I surmise. So I connect it to my Powerbook via a firewire cable and boot it in target mode. It doesn't mount. So I launch Disk Utility and the bad iBook HDD shows up in it. I erase it with the Utility tools, and everything seems good. I try to clone my Powerbook HDD to it with SuperDuper! but after 80% of the process is done I get an error message and the process aborts. Looks like the target HDD finally gave up the ghost.