If you do want to give it a go, though, you can find step-by-step instructions and download the macOS Sierra Patch tool here. While we know this worked on Sierra dev previews, we’re also unsure if Apple has managed to patch the borderline ‘hack’, so let us know your mileage in the comments below. In other words, you should have bit of technical know-how if you’re going to try this, and backup all your data first. These are the late-2008 and mid-2009 MacBook Air, early-2008 and mid-2008 MacBook Pro, early-2008 iMac and early-2008 Mac Pro. On certain devices, too, the workaround will kill your Wi-Fi functionality. That utility, along with a USB drive with a capacity of at least 8GB and a copy of Sierra, should let you install macOS on that handful of older devices.Īll the usual caveats apply: installing macOS Sierra on an unsupported computer could bork it (and your data), as well as likely voiding your warranty. Of course, just because it’s possible doesn’t mean it’s straightforward, which is why developer Colin Mistr (aka dosdude1) created the macOS Sierra Patch Tool. After installing the OS you can restore your old files from a time machine backup. This gives you the latest version of the macOS currently or most recently installed. Before you remove the old hard drive you need to prepare the USB stick so you can install it on the new drive. Install while your Mac is started up from macOS Recovery. Then try updating or installing macOS again. Early-2009 (or newer) Mac Mini or white MacBook Use Disk Utility to repair your startup disk.Late-2009 (or newer) MacBook Air or unibody MacBook.Early-2008 (or newer) Mac Pro, iMac, or MacBook Pro.That would mean support for devices from early-2008, namely: Related: How to download macOS Sierra right now Fear not, there’s a way to install the new software on older devices – here it is.ĭespite Apple’s guidance that it’s only late-2009 devices and onwards that will be able to run the OS, theoretically you should be able to run Sierra on computers with a CPU utilising the Penryn microarchitecture. The Mac must also be using macOS High Sierra or later, the latest version of macOS Sierra or the latest version of OS X El Capitan.Apple’s latest desktop operating system, macOS Sierra, is now here, but the macOS Sierra system requirements stipulate that it’s only supported by certain Apple hardware. To download an installer suitable for creating a bootable installer, use the App Store or use a web browser to download from a compatible Mac. Booted into Internet Recovery Mode to do clean install. But I neglected to make a copy of High Sierra to reinstall before I send the machine for trade in. I found I can get a 50 trade in for the old one, so why not I used Disk Utility to erase the drive. Checked date in Terminal (it's correct) 2. Reinstall MacOS 10.13 I have a 9 year old MacBook Pro running High Sierra that I used until one month ago when I replaced it with a new MacBook Pro. Got the first message that said 'The recovery server could not be contacted. Follow the onscreen installation instructions.Ī bootable installer can be useful if you want to install macOS on multiple computers without downloading the installer each time, or when you can’t install using the other methods. First booted into Recovery Mode and wiped internal drive to do clean install. Open your Applications folder and double-click the macOS installer, named Install. pkg file, then follow the onscreen instructions to install the macOS installer into your Applications folder. dmg file to open it and see the package (.pkg) file within.ĭouble-click the. Once it’s done downloading, the installer will attempt to run but you’ll. Since you’re running Mojave, clicking Get will launch the new Software Update interface in System Preferences and start downloading the approximately 5.2GB High Sierra Installer. Use these links to download a macOS disk image (.dmg) file.ĭouble-click the. This should take you to the macOS High Sierra page in the Mac App Store.
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