Anybody know where there's a definite list of all Macs that can boot from a USB device? Can any Mac with built-in USB do it, or only some? And if so, what's the absolutely smallest, stripped down, bare-bones OS (Classic) I could get away with. I'd like to put together a bootable emergency USB thumb drive with a few repair utils on it.
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Not all USB macs. The original iMac can't boot from the usb.
"Sawtooth" G4's and up can boot from USB.
I think i remember hearing someplace that only dual usb ibooks and above can boot from usb.
We've talked about this before, and it is Sawtooth and up.
Anything PowerMac, iBook, etc. released after that can boot from USB.
In a fit of extreme boredom recently I wasted an hour squeezing 9.2 onto a 64MB USB key. I had to throw away nearly every extension, all the help files, a few fonts, etc. If you plan on fitting any utilities on there then it's probably not worth bothering with anything smaller then a 128MB drive.
"Blessing" the system folder so my Titanium would actually boot off was also a black art. After about the third iteration it worked, but I don't know what *made* it work.
--Peace
I booted OS 9.x and Techtool on a 120 meg usb Superdisk drive on my old ruby iMac 400 (summer 2000) model.