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How to Boot from External Drive?
Posted by: Ammo
Date: July 25, 2008 05:37PM
Under Tiger, I used SuperDuper to copy my internal boot drive to an external Firewire drive, which I was then able to boot from. However, when I attempt to do the same thing in Leopard, it always defaults to the internal drive when I start up. Has something changed since Tiger, and if so, is there a work-around for it? I'd like to use a larger external Firewire as my default boot drive.
Re: How to Boot from External Drive?
Posted by: graylocks
Date: July 25, 2008 05:42PM
when you restart, i believe holding down the option key during a restart will give you a choice of bootable drives. chose the one you want.

or, go into System Preferences/Start Up and select the boot drive of choicd. restart. these are the options in Tiger so I assume that hasn't changed.



Edited 1 time(s). Last edit at 07/25/2008 05:42PM by graylocks.
Re: How to Boot from External Drive?
Posted by: mikebw
Date: July 25, 2008 05:51PM
used to be apple-option-shift-delete would force the computer to look for alternate bootable volumes after power on
Re: How to Boot from External Drive?
Posted by: Biff Lugnut
Date: July 25, 2008 05:55PM
the drive format matters. There's two different formats. One that'll boot PPC, one that'll boot intel.

IIRC, it's under options, in the partition subpane.
Re: How to Boot from External Drive?
Posted by: MacMagus
Date: July 25, 2008 06:10PM
Yeah.. more info, please.

What computer was used to make the clone?

What computer are you trying to boot with the clone?

Did you use the latest version of SuperDuper?
Re: How to Boot from External Drive?
Posted by: BigGuynRusty
Date: July 25, 2008 07:03PM
Quote
Biff Lugnut
the drive format matters. There's two different formats. One that'll boot PPC, one that'll boot intel.

IIRC, it's under options, in the partition subpane.
Intel will boot from APM, or GUID.
It is PPC that will only boot from APM.
Real common mistake with the non-tech.

BGnR



Re: How to Boot from External Drive?
Posted by: Ammo
Date: July 26, 2008 01:11PM
Quote
MacMagus
Yeah.. more info, please.

What computer was used to make the clone?

What computer are you trying to boot with the clone?

Did you use the latest version of SuperDuper?

Sorry - I needed to be away from the computer for a while.

I am running the latest version of SuperDuper. SuperDuper erases the destination drive before it copies from the first drive, but I don't see an option to choose the type of format it uses when erasing the drive. I am copying 10.5 from the internal drive of an Intel Mac Mini. I want the Mini to use the external drive as the default startup drive. I also don't see an option in Disk Utility to choose the type of format.
Re: How to Boot from External Drive?
Posted by: guitarist
Date: July 26, 2008 03:34PM
Quote

I also don't see an option in Disk Utility to choose the type of format.

in Disk Utility, select the drive, or volume from the column on the left.

Then you'll see a row of options on the right: First Aid, Erase, RAID, and Restore. Select Erase.

The first thing you'll see is your options. Volume Format.

The drop down bar gives you several options, Mac OS Extended (Journaled) Mac OS Extended, MS-DOS FAT, etc., and whether or not you want to install Mac OS 9 Disk Drivers, etc.

I think you can only see these options on your non-boot drive(s) i.e., your external, or secondary hard drives.

But yes, the option is there. I think you missed it. Or you're trying to select the drive you're currently booting from, and the options are grayed out.
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