#Download macos catalina on mac install
#Download macos catalina on mac password
#Download macos catalina on mac download
#Download macos catalina on mac mac

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.

#Download macos catalina on mac install

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:

#Download macos catalina on mac download

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.

Getting started with ACPI (opens new window).

Now with all of this done, head to Setting up the EFI to finish up your work.

When the new owner starts up the Mac, they can use their own information to complete setup. If you're selling, trading in, or giving away your Mac, quit the setup assistant without completing setup, then click Shut Down.

#Download macos catalina on mac mac

When installation is complete, your Mac might start up to a setup assistant.

Your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.

Allow installation to complete without putting your Mac to sleep or closing its lid.

If the installer doesn't see your disk, or it says that it can't install on your computer or volume, you might need to erase your disk first.

If the installer offers the choice between installing on Macintosh HD or Macintosh HD - Data, choose Macintosh HD.

#Download macos catalina on mac password

If the installer asks to unlock your disk, enter the password that you use to log in to your Mac.Click Continue, then follow the onscreen instructions.

When you see a window with the option to reinstall macOS, your Mac has started up from Recovery. Then click Next and enter that user's administrator password, which is the password they use to log in to the Mac.

If you're asked to select a user you know the password for, select the user.

To select a Wi-Fi network, use the Wi-Fi menu in the upper-right corner of the screen.

You might be asked to select a Wi-Fi network or attach a network cable.

Keep holding the keys until you see an Apple logo or spinning globe.

Shift-Option-Command-R: When you press and hold these four keys at startup, macOS Recovery might offer the macOS that came with your Mac, or the closest version still available.

Option-Command-R: When you press and hold these three keys at startup, macOS Recovery might offer the latest macOS that is compatible with your Mac.

Command-R: When you press and hold these two keys at startup, macOS Recovery will offer the current version of the most recently installed macOS.

If none of them work, review the guidelines for using startup-key combinations.

Immediately after releasing the power button, press and hold one of these key combinations.

Press and release the power button to turn on your Mac.

If you're not using a Mac with Apple silicon, you're using an Intel-based Mac.