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Remember that you do this at your own risk, you could lose all your data (it's your responsibility to do a Time Machine backup first!), expect bugs and crashes, and this patcher is still under development. This documentation is more thorough than for previous versions of this patcher, but it may still be incomplete. In addition, thanks to Ben Sova, MachInit, johncaling40, and Travis Parker for their contributions to this patcher.

Ausdauersportler for integrating patches for iMac Metal GPU support.

This turned out to be a good way to make LegacyUSBInjector function under Big Sur, and more generally and more importantly, it was absolutely essential for improving overall patcher reliability.

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testheit for describing how to use a kmutil feature that I was previously unaware of.

ParrotGeek for developing the LegacyUSBInjector kernel extension that allows USB to work on various pre-2011 Mac models, and for creating the 'trampoline' that allows the installer to be patched at runtime without first running Terminal commands.

highvoltage12v for developing the first 802.11n Wi-Fi patches for Big Sur (no longer used by default, but still available through the -wifi=hv12v-old and -wifi=hv12v-new options for patch-kexts.sh), as well as patches used for Metal GPU support on 2011 iMacs.

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jackluke for figuring out how to patch the Recovery USB to bypass compatibility checks and AMFI enforcement in the absence of NVRAM boot-args settings.

ASentientBot for developing the Hax series of installer patches which are so incredibly helpful for installing Big Sur on unsupported Macs, as well as for his patch to NVDAResmanTesla.kext which allows the GeForce Tesla (9400M/320M) framebuffer to work in Big Sur.

Thanks to the following people for their hard work to get Big Sur running on unsupported Macs: For 2008 Mac Pros (MacPro3,1) in particular, Big Mac is clearly a better option than this patcher (at least for now).

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You, therefore, need to install OpenCore Legacy Patcher into your Macintosh HD instead.A primitive USB patcher for installing macOS Big Sur on unsupported Macsīy the way, if you have a Mac Pro, Big Mac by StarPlayrX is another patcher worth considering. Once you disconnect the external drive from your Mac, you have no channel to boot into macOS Ventura anymore. You have installed the OpenCore Legacy Patcher in your external storage device in its EFI partition. Step 2: Install OpenCore Legacy Patcher into your internal hard disk Now you run macOS Ventura on your Mac, you need to download and install OpenCore Legacy Patcher again as you do in the preparation stage. Step 1: Download and install OpenCore Legacy Patcher again If the bootup process goes wrong, re-hold the Option key until you see the EFI Boot option with the OpenCore icon, and then select the grey hard disk with Macintosh HD by default. Now, you can use OpenCore Picker to boot into macOS Ventura. Follow the onscreen wizard to complete the installation work.Shut down Disk Utility, and then tap macOS Ventura.Choose your internal hard drive (always Macintosh HD) and click Erase.Select Disk Utility on the installation screen.These old-fashioned Macs are incompatible with the newly-coming macOS Ventura.īefore installing macOS 13 on your Mac, you can check your Mac model first with simple operations. Unsupported Macs refer to devices shipped many years ago with outdated hardware, an old operating system, and antique computer parts. Unsupported Macs that are able to run macOS Ventura FAQ about installing macOS Ventura on an unsupported Mac Bonus tips on running macOS Ventura on your Mac How to install macOS Ventura on an unsupported Mac? Things you should know about OpenCore Legacy Patcher Don't be upset yet, you can get how to install macOS Ventura on your unsupported Mac with step-by-step instructions in this article. However, some too old-schooled Macs cannot receive this notification for Apple offers no official macOS Ventura upgrade for them.

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Or, you can tick Automatically keep my Mac up to date option for making your Mac update itself. Too often, Mac users are able to upgrade to macOS Ventura manually by clicking the Apple menu > About This Mac > Software Update > Upgrade now.

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After long-awaited expectations, macOS 13 Venture, replacing macOS 12 Monterey, is now available as a free software upgrade on Macs with Apple Silicon chips and Intel-based Macs.