Currently Being ModeratedJul 21, 2013 1:18 PM (in response to apple-owner)
You CAN NOT boot a Mac from a Disk Image. You have to Restore that image to a drive/disc of some type, USB thumb, standard HDD or DVD disc.
You can restore that image to a thumb or standard drive or to a DVD disc if you have a external DVD drive on your Retina.
Currently Being ModeratedJul 21, 2013 3:32 PM (in response to LowLuster)
According to the chart, you will need a minimum of build 10D2063a. My Full retail 10.6.3 DVD contains Build 10D575, so that falls short.Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
Currently Being ModeratedJul 21, 2013 7:32 PM (in response to LowLuster)
I'm not booting from a DMG. I've created bootable USB sticks and bootable external HDDs. Sorry if I confused you, I'm not sure how to express myself more clearly.
Interesting tip to make sure the build is at least 10D2063a. Thanks for that; I hadn't clued in on it. Sounds like my only recourse, in that case, will be to call Apple and pay for the machine-specific system disc to be sent. It appears to be the only way out of the woods. Cheers!
Currently Being ModeratedJul 22, 2013 9:13 PM (in response to apple-owner)
For posterity: I tried a retail 10.7 Lion bootable USB. When booting the mid-2010 MBP i7, I pressed option and the USB was recognized as a bootable volume. Selecting it results in the "No Entry"/Prohibited symbole (a circle with slash). I'm unable to install 10.7 even though it is a later build than required for my laptop.
Resetting SMC doesn't help. Command+R is of no use. Can't get there from here.
Currently Being ModeratedJul 23, 2013 7:45 AM (in response to apple-owner)
This must be a version of 10.7 that you purchased, not just a re-download of a version for a Mac that shipped with 10.7.
TS2570-Gray screen or prohibitory sign appears during startupMac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
Currently Being ModeratedAug 4, 2013 10:50 AM (in response to apple-owner)
Confirming for posterity: Ordering the system recovery disk from Apple with a special build of 10.6.3 (post-retail 10.6.3, but pre-10.6.4) was the only way to install OS X. If you're in the same boat I was in, trust me that I tried it all before throwing in the towel and paying $17 + shipping for the device-specific DVD from Apple.
Thank you to all who helped and responded. Much appreciated, folks!
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