Q: I can't boot from a Leopard DVD while using Lion (10.7.2)
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Jan 16, 2012 2:48 PMby baltwo,If that new iMac came with Lion, it most likely won't boot with the SL install disc because the DVD is missing components required to boot it. See Computer-specific Mac OS X releases and Don't install a version of Mac OS X earlier than what came with your Mac
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Jan 21, 2012 11:44 AMby William Ahroon,27" iMac was purchased with Leopard (or Tiger) and was upgraded to Snow Leopard. Upgraded to Lion (10.7.2) recently. I wanted to go back to use Quicken 2007 by installing a copy of Leopard on an external Firewire drive. However, my Lion-equipped iMac will not boot from the Leopard DVD.
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Jan 21, 2012 12:48 PMby baltwo,See http://support.apple.com/kb/SP576 and http://www.everymac.com/systems/apple/imac/stats/imac-core-i5-2.66-27-inch-alumi num-late-2009-specs.html for clarification. AFAICT, there wasn't an i7 version.
