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I seem to remember there was a way to take the install disk that ships with a Mac, and make it a universal installer. Pacifist?
I have multiple copies of retail Snow Leopard but the latest Apple makes is 10.6.3 and Thunderbolt Macs need 10.6.6 at least.
How can I do that from the 10.6.6 install disk that cam with my MacBook Pro. I need to take a Lion iMac that shipped with Lion down to Snow Leopard. I got it to work thanks to this thread,
http://forums.macresource.com/read.php?1...sg-1224408 but I really want to make a disk for future needs.
Thanks!
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your best bet would be to find some original iMac disks, just to make sure you have the correct video drivers and also the bundled apps just in case. Maybe a friend with an iMac will let you copy his/her disks?
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Can't you just boot that iMac into Target Mode - and install the OS of your choice onto that disk?
That's the way I always do it.
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The problem is that retail Snow Leopard discs have 10.6.3 and the ThunderBolt Macs need 10.6.6 at least.
I may be missing what you are saying?
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In the past, the model-specific installers had a file embedded in the installer that verified compatibility of the target machine. Ditto for some drop-in upgrade disks that required presence of a previous version of OSX to run. In those cases, universalizing the installer involved making a disk image of the install disk and editing out or revising the pesky compatibility-check file and burning a copy of the edited installer. Doing this with your OS 10.6.6 installer would require figuring out what strategy that installer uses to accept/decline your proposed installation target.
Is it possible to run the new machine in target disk mode connected to your OS 10.6.6-compatible Mac Pro? If so, then you could install directly from the 10.6.6 installer via the Mac Pro. The Mac Pro will treat the iMac as an associated non-boot hard disk and not notice anything else about it. As long as the target disk installation is fully upgraded to 10.6.6, the iMac should work when you return to using the drive as the iMac boot disk.
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Thanks Janit--that makes lots of sense, I will give it a try. Maybe that is what JimmyPoo meant also.
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Looks like I can get a 10.6.7 DVD from AppleCare. Thanks all.
