As next step I rebooted the MBP holding the alt-command-R keys to start from the Apple servers and did a new Internet install of Lion on the second partition.That done SL runs now without any problem - not one incompatibility issue in one month (would have been surprised because there were no major hardware changes from early to late 2011 MBP15').Now I ran the 10.6.8 combo update that I downloaded before cloning and did all the software updates and another reboot.There was one little glitch with the splash screen resolution (not full screen) but nothing serious.Using CarbonCop圜loner I cloned the clean SL installation one the first partition of the MBP, then disconnected the laptop and booted in SL.Then I formatted my MBP internal drive in target disk mode and created 3 partitions (SL, Lion, Bootcamp).As I couldn't lay my hands on a original MBP 15' Install-DVD from last summer (10.6.7) which should allow you to boot the MBP15' directly from it, I did a clean 10.6.7 install with my iMac 27' (iMac11,1 - i7 2.8 GHz) on an external hard drive starting from a 10.6.3 iMac install DVD and applying all the updates up to 10.6.7.For me it's just roaring and definitely not the 'King' of the MacOs as the name suggests. And personally, I'm not really happy with Lion, but that's an other story.

But hey, my love and I have some scientific software and also Adobe products that only run smoothly on Snow Leopard and all our other Mac's in the family are on SL so I had to give it a try to stay productive. 2012 and had not the slightest issue since.īut from Apple side it is NOT recommended and certainly NOT supported. I'd like to confirm that it IS possible to run Snow Leopard on a late 2011 MBP 15' without ANY FLAW although AppleCare technicians told me that it is not possible ! I did it on mine (CTO, 2.2 GHz i7) bought in fev.

How to back up macbook pro snow leopard