#Boot to disk utility apple how to#
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#Boot to disk utility apple mac#
#Boot to disk utility apple windows#

When you select this option, CCC will configure the task to use Apple's APFS replicator to clone the selected source to the selected destination. We recommend that you dedicate a volume to the backup task, because the volume will have to be erased to establish a bootable backup.

#Boot to disk utility apple how to#

your macOS Big Sur startup disk) as the source to a task, and a destination that is not an already-established Big Sur volume, CCC will offer some choices for how to proceed with the task depending on how the selected destination is configured.

When you select an APFS volume group (e.g. What to expect as you configure your first backup task For subsequent backups, CCC will use its own file copier and will copy just the differences from your Mac's Data volume. When you configure a CCC backup task to make a clone of a Big Sur startup volume, CCC will use Apple's APFS replicator (named 'ASR') to create the initial clone. CCC cannot use its own file copier to establish an initial bootable backup of your Mac's startup disk.

#Boot to disk utility apple install#

To create a functional copy of the macOS 11 System volume, we have to use an Apple tool to copy the system, or install macOS onto the backup. That seal can only be applied by Apple ordinary copies of the System volume are non-bootable without Apple's seal.

If you're using Boot Camp to start up from Microsoft Windows, set Startup Disk preferencesВ to start up from macOS instead.В Then shut down or restart and try again.Starting in macOS Big Sur (11.0), the system resides on a cryptographically sealed 'Signed System Volume'.

#Boot to disk utility apple windows#

If you're using a keyboard made for a PC, such as a keyboard with a Windows logo, try a keyboard made for Mac. Or use your built-in keyboard or a wired keyboard.

If you're using a wireless keyboard, plug it into your Mac, if possible.

Some keyboards have a light that flashes briefly at startup, indicating that the keyboard is recognized and ready for use.

#Boot to disk utility apple mac#

You might need to wait a few seconds before pressing the keys, to give your Mac more time to recognize the keyboard as it starts up. Then press and hold the keys as your Mac starts up. Then press theВ power buttonВ to turn on your Mac. Press and hold all keys in the combination together, not one at a time.If a key combination doesn't work at startup, one of these solutions might help: EjectВ (вЏЏ) or F12 or mouseВ buttonВ or trackpad button:В Eject removable media, such as an optical disc.В Disabled when using a firmware password.Command-V: Start up in verbose mode.В Disabled when using a firmware password.

T: Start up in target disk mode.В Disabled when using a firmware password.

Disabled inВ macOS Mojave or later, orВ when using a firmware password.

Command-S:В Start up inВ single-user mode.

To use the default boot image on the server, press and hold Option-N instead.В Disabled when using a firmware password.

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.В Disabled when using a firmware password.

D:В Start up to the Apple DiagnosticsВ 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 NVRAMВ or PRAM.

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

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

macOS Recovery installs different versions of macOS,В depending on the key combination you use.В 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 (вЊ)-R:В Start up from the built-in macOS RecoveryВ system.Keep holding until the described behavior occurs. To use any of these key combinations, press and hold the keys immediately after pressing the power button toВ turn on your Mac, or after your Mac begins to restart.