USB Startup drive

[wts]

Can a power mac that has OS X Tiger installed boot up /start up from a USB external hard drive or stick that has the same system installed ,OS X Tiger ?

And if not why not ?

 

[jrsx]

It can, but unofficially.

http://hints.macworld.com/article.php?story=20061017084322177
http://ben-collins.blogspot.com/2010/08/booting-your-ibook-g4-from-usb-stick.html

It's very hit and miss, but there you go.

Good luck!

 

[Intell]

PowerPC Macs can officially start up from a USB device: http://support.apple.com/kb/TA25908 Apple never said they couldn't.

 

[jrsx]

How come they say a USB drive containing a valid System folder can be used at startup, but do not explain how? I've never once been able to boot from USB.

 

[Intell]

A valid System folder is one that contains all the needed parts of a Classic Mac OS installation and it properly blessed.

 

[wts]

and it properly blessed

How is that done please ?

 

[Intell]

How is that done please ?

In Mac OS X you use the bless command in Terminal. In Classic Mac OS, you use the Startup Disk control panel.

 

[wts]

In Mac OS X you use the bless command in Terminal. In Classic Mac OS, you use the Startup Disk control panel.

I wish i could understand and act on that information.

Perhaps you could give me an URL that tells me what I type into Terminal

and

what i do in the Startup Disk Control panel.

 

[Intell]

Here is Apple's documentation on it: https://developer.apple.com/library/mac/documentation/Darwin/Reference/Manpages/man8/bless.8.html