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Install Snow Leopard into partition on system running Lion

Lion will not allow install. Reboot, hold down C key, Snow Leopard disk ejects.

MacPro 3 GHz, G4 400, Intel iMac, MacBook, Pismo PB, 1G iPod, Mac OS X (10.6.1), Alienware Aurora, Trek Y66, Ludwig Vistalites, Birth. Drums. Dea

Posted on Jan 5, 2012 7:12 PM

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35 replies

Jan 5, 2012 7:51 PM in response to Mike on Maui

Could be that Lion systems will not allow SL to partition the disk, assuming you are using the SL disk to change the partition (you did not say yay/nay).


You could boot into "Recovery Partition" and use Lion to re-partition the disk, but I would not do that myself without a VERY VERY good backup of my Lion system disk and a "Recovery Partition thumb drive" *just in case*.


But you may want to wait on "forum veterans" before trying any of my potentially destructive advice.

Feb 20, 2012 6:51 PM in response to Mike on Maui

The snow leopard "Full Retail" disc has 10.6.3 on it. If your Mac is too new, 10.6.3 software is too old for that Mac, and it won't boot the disc.


If you have another Mac, you can sometimes install snow Leopard 10.6.3 onto the other Mac, run software update to get to 10.6.8, then clone that 10.6.8 onto your Mac Pro. But you have to start with the "Full Retail" or you don't get all the Drivers, and your other Mac has to be old enough to boot 10.6.3.

Install Snow Leopard into partition on system running Lion

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