USB booting

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DrBunsen's picture
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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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martakz's picture
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Not all USB equiped macs. Th

Not all USB macs. The original iMac can't boot from the usb.

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"Sawtooth" G4's and up can bo

"Sawtooth" G4's and up can boot from USB.

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I think i remember hearing so

I think i remember hearing someplace that only dual usb ibooks and above can boot from usb.

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We've talked about this befor

We've talked about this before, and it is Sawtooth and up.

Anything PowerMac, iBook, etc. released after that can boot from USB.

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Eudimorphodon's picture
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Re: USB booting

DrBunsen wrote:

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.

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

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Joined: May 16 2004
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I booted OS 9.x and Techtool

I booted OS 9.x and Techtool on a 120 meg usb Superdisk drive on my old ruby iMac 400 (summer 2000) model.