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ALTERNATIVES TO DISK UTILITY FOR ERASING MAC MAC OS
ALTERNATIVES TO DISK UTILITY FOR ERASING MAC INSTALL
ALTERNATIVES TO DISK UTILITY FOR ERASING MAC MAC

Eject (⏏) or F12 or mouse button or trackpad button: Eject removable media, such as an optical disc. Disabled when using a firmware password.Command-V: Start up in verbose mode. Disabled when using a firmware password.

T: Start up in target disk mode. Disabled when using a firmware password.Disabled in macOS Mojave or later, or when using a firmware password. Command-S: Start up in single-user mode.To use the default boot image on the server, press and hold Option-N instead. Disabled when using a firmware password.

ALTERNATIVES TO DISK UTILITY FOR ERASING MAC MAC

N: Start up from a NetBoot server, if your Mac supports network startup volumes.

Or use Option-D to start up to this utility over the internet. Disabled when using a firmware password.

D: Start up to the Apple Diagnostics utility.

If your Mac is using a firmware password, it ignores this key combination or starts up from macOS Recovery.

Option-Command-P-R: Reset NVRAM or PRAM.

If your Mac is using a firmware password, you're prompted to enter the password.

Option (⌥) or Alt: Start up to Startup Manager, which allows you to choose other available startup disks or volumes.

macOS Recovery installs different versions of macOS, depending on the key combination you use. If your Mac is using a firmware password, you're prompted to enter the password. Or use Option-Command-R or Shift-Option-Command-R to start up from macOS Recovery over the internet.

Command (⌘)-R: Start up from the built-in macOS Recovery system.

Keep holding until the described behavior occurs. I suggest using Ethernet if possibleīecause it is three times faster than wireless.To use any of these key combinations, press and hold the keys immediately after pressing the power button to turn on your Mac, or after your Mac begins to restart. Note : You will need an active Internet connection.

ALTERNATIVES TO DISK UTILITY FOR ERASING MAC INSTALL

Reinstall Lion: Select Reinstall Lion/Mountain Lion and click on the Install button. The Erase button and wait until the process has completed. The Security button and set the ZeroData option to one-pass.

ALTERNATIVES TO DISK UTILITY FOR ERASING MAC MAC OS

Set the format type to Mac OS Extended (Journaled.) Optionally, click on Click on the Erase tab in the DU main window.ģ. After DU loads select your startup volume (usually Macintosh HD) from the Select Disk Utility from the main menu and click on the Continue button.Ģ. Install or Reinstall Lion/Mountain Lion from Scratchīe sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.ġ. If you need to erase the drive and reinstall: Select the Recovery HD and click on the downward pointing arrow button. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Open DU, select your volume, click on the Enable Journaling icon in the DU toolbar. However, you do not have to erase the drive in order to Journal it. The erase option is not disabled, you simply cannot erase a startup drive. You are posting about Lion in 10.3 and earlier forum.