It is reported to work on theses unsupported machines: Here's the patch tool by dosdude for High Sierra, Iused his former patch to do the Sierra upgrade. I did open a new install of MS Office 2011 which had reports that it was not going to work but so far have seen no issues. I did my first install of 10.13 last night on a 2012 13" MBP without issue as expected but really have not looks at it yet. I posted this to see if anyone has done it yet, also because I know we will have question on it, and to see if anyone has attempted it yet and has any advice. I'm first going to try the install on a 2008 MacPro, then try it on either a 2008 and/or early 2009 MacBook Pro. But, after watching a couple of videos, right now it appears I will not have to do a firmware update. At the time I did it last year, it appeared that it couldn't be done on the 2008 MacPro.
I did the Sierra upgrade on a couple of MacPros 4,1 and it has worked excellently, after I did a firmware update patch to get it to read as a MacPro 5,1, so I am very optimistic on doing it again. Below you can see how much time you should plan on for each of the main steps that you need to take to install High Sierra.I am currently researching installing OS X 10.13 High Sierra on unsupported Macs. If not, that could take a long time to complete. One of the biggest factors will be if you are prepared for the macOS High Sierra update with a Time Machine backup. We can help outline the most likely time you need to complete the upgrade. We don’t know exactly how long your macOS High Sierra update will take since download times will vary based on your Internet connection and based on your device. Plan to set aside a little bit of time for this update, during which you cannot use your computer. If you are already on macOS High Sierra and just need to install the latest release like macOS 10.13.5, it will take at least 20 minutes to install. It will take longer to upgrade from macOS Sierra to macOS High Sierra. One of the most common questions is, “how long does the macOS High Sierra update take to finish?”
The macOS High Sierra update is large, and you may see an even larger update size if you are not coming from macOS Sierra. The new macOS 10.13.5 update is smaller and more focused, but it still takes a while to install. If you’re prepared, the new upgrade shouldn’t take too long to install on your MacBook, MacBook Air, iMac, MacBook Pro or other Mac.Īpple’s High Sierra update first arrived in late 2017 with plenty of new features for your Mac. The macOS High Sierra update is big, but the longest part of the upgrade is the installation for most users.
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