#How to downgrade mac os x 10.10 to 10.8 full#
– a full backup of your current harddrive running OSX 10.7 Lion and all your personal files (simply put : “a Time Machine backup of your Mac”) – the 32-bit MLPostFactor v3.0 installer-patcher (should be put inside your Applications folder also) you can download from here : – an official version of the OSX 10.8 installer, (re)downloaded from the Mac App Store inside your Applications Folder (sorry, pirated versions don’t work…) – one of the Intel-Macs mentioned above (running MacOSX 10.7 Lion and at least 2GB of RAM) !!! THIS IS FOR (RATHER) EXPERIENCED MAC-USERS ONLY, AND SHOULD NOT BE DONE ON YOUR ‘ONE AND ONLY’ MAC !!! – it’s provided “as-is”, so no support from anyone (neither the developer nor me), and no guarantee it will fully or even partially work in your case (especially not if you do not strictly follow all of the directions !!) – the SMB client is not working properly (the SMB server is), so file transfer is crippled – some (but very little) software is not compatible due to various reasons e.g. – regular OSX updates are disabled, you can only use a special OSX-update routine …and I must say : “(in my case) it runs smoother than MacOSX 10.7”, but there are a few downsides, especially these ones : Late 2006 (and newer) versions of the Macbook, MacBook Pro, Mac Pro and XserveĮarly 2008 (and newer) versions or the Macbook Air
#How to downgrade mac os x 10.10 to 10.8 install#
Yes, thanks to the guys from MLPostFactor, it’s now possible to install OSX 10.8 Mountain Lion (even 10.8.4) on these older Intel-Macs :Įarly 2006 (and newer) versions of the iMac and Mac mini And a new version that supports installing OSX 10.11 El_Capitan is in the works.įor more info (and downloads), go to the info page on : MacPostFactor also supports installing OSX versions up to OSX 10.10 Yosemite on older Macs. MLPostFactor has been succeeded/replaced by MacPostFactor, and is now being updated by a new crew of programmers.
I read somewhere that it is possible to install the latest version of OSX 10.8 Mountain Lion on my Mac, even though the official installer refuses to install.
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