Unable to boot from ext drive

skiltrip

macrumors 68030
Original poster
May 6, 2010
2,813
213
New York
On my new MBP (2011 2ghz 15") I'm unable to boot from external bootable clones. I have a FireWire drive and a USB. Both bootable clones I made from 2 other macs recently (2010 iMac and 2010 MBP). I turn on my MBP, hold down the alt key, I get the drive selection, select it, then boot from it, but maybe 20 seconds later the ext drive stops spinning and the MBP just stays on the white screen with the Apple logo.

Same exact thing with both external drives.

Ideas?
 

axu539

macrumors 6502a
Dec 31, 2010
929
0
Superduper. And Ive booted from both of them before on other macs.
You can't boot the new Macs with drives cloned from older Macs. The newer ones have a new build of OS X with a new version of the kernel in order to support the newer processors.
 

bcaslis

macrumors 68020
Mar 11, 2008
2,164
188
Your problem is that you cloned other Macs. Every new model ships with a slightly updated OS to support it's new hardware. You need to clone an OS installation on your new machine, not your old machine.
 

skiltrip

macrumors 68030
Original poster
May 6, 2010
2,813
213
New York
Your problem is that you cloned other Macs. Every new model ships with a slightly updated OS to support it's new hardware. You need to clone an OS installation on your new machine, not your old machine.
I was able to boot a 2010 iMac i7 from a clone made on a 2010 MBP Core2Duo. I figured I could use the iMac i7 clone to boot the 2011 MBP i7.
 

axu539

macrumors 6502a
Dec 31, 2010
929
0
I was able to boot a 2010 iMac i7 from a clone made on a 2010 MBP Core2Duo. I figured I could use the iMac i7 clone to boot the 2011 MBP i7.
When the 2010 models came out, they didn't use a new build of Snow Leopard. The next 2011 MBPs ship with a new version of the kernel 10.7.1 instead of 10.6, so there's an incompatibility now.
 

skiltrip

macrumors 68030
Original poster
May 6, 2010
2,813
213
New York
When the 2010 models came out, they didn't use a new build of Snow Leopard. The next 2011 MBPs ship with a new version of the kernel 10.7.1 instead of 10.6, so there's an incompatibility now.
Cool. Thanks. much appreciated.

I'll make a fresh clone just to make sure everything is well.