mountain lion

I have a 2009 Mac Pro 4,1 with firmware updated to 5,1. I use it to run older software I still need. I've created a USB boot installer for Mountain Lion 10.8.5, but I keep getting a message that it couldn't complete the purchase & isn't compatible with my computer. I've tried disconnecting...

I'm trying to install Mountain Lion using MacPostFactor on my MBP2,2. Whenever I try to boot into it, it brings up a window that says "Creating MacPostFactor recovery (small)" then it reboots after about 15 seconds. It boot loops and does this repeatedly. Is there a way I can bypass this or fix...

I have been having difficulty booting up my MacBook Pro 2012 15", where the screen was not working, but i could hear the start up sound etc. I decided to reboot the laptop in recovery mode (CMD + R) and then erase the hard drive and start a fresh, as everyone was backed to the cloud. So i...

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A few months ago, my dual-boot Mac laptop ran High Sierra and Mountain Lion. They talked to each other. Now, having recently "upgraded" to Mohave, they are having communication issues. So far, here are some curious results of switching to Mohave. Some apps create their own folders under Mohave...

Hi, I got a cheap Macbook Pro 13 inch 2012 pre retina. It came with High Sierra, which ran REALLY slow. I reinstalled it and it was still very slow, so I tried installing Sierra and El Capitan, but it was the same, so I booted while pressing shift+option+cmd+r and it installed Mountain Lion, the...

Hello, I have an old MacBook Pro 13" 2.5 Ghz Intel Core i5 4 GB 1600 MHz DDR3 (mid 2012?). I have been using 10.8.5 Mountain Lion, ever since I bought this computer when it was new. If I did not need certain software that requires 10.9/10.10 or newer, I would keep my mac exactly how it is now...

I'm wanting to partition my 1.12Tb Fusion drive on my (late 2012) iMac i7 3.1Ghz, 8Gb Ram, 21.5 inch, 10.14.6 (I will update to 10.15 when stable update released) - so dual boot to 10.14/15 or 10.8. I'm wanting to put an older OS like 10.8 on the new small partition to run older software better...

Ethan Nelson-Moore (known on this forum under the nick parrotgeek1, a collaborator of Collin Mistr, the latter known as Dosdude1) has successfully undertaken the job of porting Firefox "Quantum" to some older unsupported versions of Mac OS X, namely, Lion and Mountain Lion, lowering the min...

Hi. I'm on a mid-2012 MBP and have just done a full reset of everything and installed a new copy of Mountain Lion. I then tried to upgrade to Mojave but was met with the following message: "This Apple ID has not yet been used with the App Store. Please review your account information". I...

First of all, I'd like to mention that I'm not an advanced user but I manage quite fine Well, I have this old machine that has been running perfectly on MacOS X Leopard for years now and which I have upgraded to MacOS X Snow Leopard and then to MacOS X Lion but I want to go further, this is...

Hello, Long time lurker, first time poster... After my 2012 MBP bit the dust last year I've been using workarounds on a 2016 MBP as my main work machine. I've been using Adobe CS6 and am happy with it for print production work - I really don't need anything newer or fancier. However... you...

Hello, I keep getting this error on Tuxera NTFS 2010.12-RC app and I don't know what it means or how to solve it for that matter. I'd like to uninstall it completely from the system and reinstall the same version that I currently have or reinstall it with a version that'll work with 10.8.5. Has...

Tried macOS Extractor out on my old MacbookPro 2,1. Installation went great, I've got 10.8.5 running on the system, however there's no graphical acceleration. Usage is painful with animations. I have inferred from my reading that 10.8.x would support GPU acceleration - and is essentially the...

Hello everyone, I've been looking into buying a new sound interface for a while and the focusrite scarlett seems to be a very good card, but... Everywhere I look they say that these cards are only compatible with OS X 10.9 and above but that's not the case. I just got the opportunity to try one...

I installed ML to my mbp2,2(C2D, x1600) via mlpf v0.3. But when I tried to install 'Security Update 2015-006), my mbp causes unexpected errors, and It won't boot. It was the same when running in safe mode. and Combo Update has also failed. What should I do?

I have a mid 2007 MacBook Core 2 Duo (black) and want to install the Mac OS X Mountain Lion installer on it to later use MLPost Factor to install ML on this machine. However, when I go on my purchased tab in the app store and find my ML installer, I can't download it to the computer. Is there...

Hi Everyone, I have been having quite the struggle trying to update my Mid-2009 MBP to the "latest" MacOS. Initially I wanted to install Sierra. I booted (CMD-R), wiped the main partition, then attempted to upgrade. The only available option was Mountain Lion, which was already installed. Even...

hi I'm trying to bring my old 2007 black MacBook back to life. After a few hardware upgrades I'm trying to now install Mountain Lion (Currently running lion 10.7.5) by way of MacPostFactor. My issue is that I can't get the purchased Mountain Lion OS out from the Apple Store since it won't...

hi, For the third time (the last year) in a row my mac won't start up. Neither in single mode, safe mood or regular boot. It does in recovery mode. I've tried back up through terminal but my folders are not found. I've used fsck_hfs many many times on the disk0s2 partition. It modified the...