Lesson 5: Use macOS Recovery Flashcards
• Access macOS Recovery utilities. • Manage Startup Security Utility. • Set a firmware password to secure macOS startup. • Manage Secure Boot and external boot options for Mac computers that have the Apple T2 Security Chip. • Reinstall macOS from macOS Recovery. • Create an external macOS Recovery disk.
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
- Network Utility
- Terminal
After you open Terminal, you can run the resetpassword command to reset a password for a local account.
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:
- Command-R: Install the latest macOS that was installed on your Mac without upgrading to the latest version.
- Option-Command-R: Upgrade to the latest macOS that’s compatible with your Mac.
- Option-Shift-Command-R: Install the macOS that came with your Mac or the version closest to it that’s still available.
What tool can you use to set a firmware password for your Mac?
How to turn on a firmware password
- Start up from macOS Recovery: Press and hold Command (⌘)-R immediately after turning on your Mac, and release the keys when you see the Apple logo or a spinning globe.
- When the utilities window appears, click Utilities in the menu bar, then choose Firmware Password Utility or Startup Security Utility. This utility is available only on Mac models that support use of a firmware password.
- Click Turn On Firmware Password.
- Enter a firmware password in the fields provided, then click Set Password. Remember this password.
- Quit the utility, then choose Apple menu > Restart.
How do you access Startup Security Utility?
Startup Security Utility is available only when you start from macOS Recovery.
Go to the Utilities menu, then choose Startup Security Utility.
If you set a firmware password for your Mac, when are you prompted to enter the firmware password?
You’ll see a prompt for a firmware password if you turn on your Mac and press a modifier key or keys to change the way the Mac starts up, such as T, D, Command-S, Command-R, or Option.
The firmware password prompt appears after you restart or turn on your Mac and then immediately press and hold boot modifier keys like Option or Command-R.
You release the keys when you see the Apple logo, a spinning globe, or the prompt for a firmware password.
When will your Mac require you to enter an administrator password before you can access macOS Recovery?
If your Mac has FileVault or Activation Lock turned on, you need to provide an administrator password before you can access macOS Recovery.
Can you set a firmware password for a Mac that doesn’t have the T2 Security Chip?
Yes, you can set a firmware password if your Mac does not have the Apple T2 Security Chip.
In Startup Security Utility, what are the default values for Secure Boot and for Allowed Boot Media?
By default, in Startup Security Utility, Secure Boot is set to Full Security, and Allowed Boot Media is set to “Disallow booting from external or removable media.”
What does the Secure Boot setting of Full Security ensure?
The Full Security setting ensures that your Mac will boot only from operating systems that are trusted by Apple and are still being signed by Apple.
How can you create an external macOS installation disk?
You can create a macOS Recovery disk that includes the macOS Catalina tools and installation assets with the createinstallmedia command-line tool in the macOS Installer app.
