Lesson 5: Use macOS Recovery Flashcards
• Access macOS Recovery utilities. • Reinstall macOS from macOS Recovery. • Create an external macOS Recovery disk.
When are you prompted to enter a firmware password?
You will see a prompt for a firmware password after you start your Mac up from macOS Recovery.
The firmware password prompt appears after you restart or turn on your Mac and then immediately press and hold <kbd>Command-R</kbd>.
You release the keys when you see the Apple logo, a spinning globe, or the prompt for a firmware password.
Which utilities are available when you start up from macOS Recovery?
macOS Recovery gives you access to:
- Restore from Time Machine Backup
- Install / Reinstall macOS
- Get Help Online through Safari
- Disk Utility
- Startup Disk
- Startup Security Utility (f.k.a. Firmware Password Utility)
- Network Utility
- Terminal
- Reset Password
What are the different macOS Recovery options and startup key combinations?
macOS Recovery installs different versions of macOS depending on the startup key combination you use:
- <kbd>Command-R</kbd>: Install the latest macOS that was installed on your Mac without upgrading to the latest version.
- <kbd>Option-Command-R</kbd>: Upgrade to the latest macOS that is compatible with your Mac.
- <kbd>Shift-Option-Command-R</kbd>: Install the macOS that came with your Mac or the version closest to it that is still available.
How can you create an external macOS installation disk?
You can create a macOS Recovery disk that includes the macOS Mojave tools and installation assets with the createinstallmedia command-line tool in macOS Installer.
