This method allows you to download much older versions of OS X, currently supporting all Intel versions of OS X(10.4 to current) If you want to check the integrity of your download, you can check this repository of checksums (opens new window), although do note that these are crowdsourced checksums and may not be a reliable way to check for authenticity. Note 2: Running Cmd+Shift+G in Finder will allow you to easily jump to ~/macOS-installerįrom here, jump to Setting up the installer to finish your work.Note: We recommend to move the Install macOS.app into the /Applications folder, as we'll be executing commands from there.Mount it and you'll find the installer application. Once finished, you'll find in your ~/macOS-Installer/ folder a DMG containing the macOS Installer, called Install_macOS_11.1-20C69.dmg for example. This is going to take a while as we're downloading the entire 8GB+ macOS installer, so it's highly recommended to read the rest of the guide while you wait. If you need a particular versions of macOS, you can select it by typing the number next to it. Mkdir -p ~/macOS-installer & cd ~/macOS-installer & curl > installinstallmacos.py & sudo python installinstallmacos.pyĪs you can see, we get a nice list of macOS installers. Open a terminal window then copy and paste the below command: If you've already mapped your USB ports (opens new window) and disabled XhciPortLimit, you can boot macOS 11.3+ without issues.įrom a macOS machine that meets the requirements of the OS version you want to install, go directly to the App Store:įor machines that need a specific OS release or can't download from the App Store:įrom a macOS machine that meets the requirements of the OS version you want to install, go directly to the App Store and download the desired OS release and continue to Setting up the installer.CAUTION: With macOS 11.3 and newer, XhciPortLimit is broken resulting in boot loops (opens new window).
macOS 12 and above note: As recent macOS versions introduce changes to the USB stack, it is highly advisable that you map your USB ports (with USBToolBox) before installing macOS.This method allows you to download macOS 10.13 and newer, for 10.12 and older see Downloading macOS: Legacy OS.
For everyone else, you can either download macOS from the App Store or with Munki's script. You can skip this and head to formatting the USB if you're just making a bootable OpenCore stick and not an installer. To start we'll want to grab ourselves a copy of macOS. While you don't need a fresh install of macOS to use OpenCore, some users prefer having a fresh slate with their boot manager upgrades.
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