If you cannot or do not want to make a bootable backup of the selected source, and you also do not want to erase the selected destination, you can select the Data Only option. Instead, CCC will add a new volume on the destination and use the new volume as the dedicated backup for the source. When you choose this option, your selected destination is not erased, nor affected at all by the backup task. If the selected destination is an APFS-formatted volume, and if the volume's container has enough capacity to accommodate a complete backup of the source volume, CCC will offer an option to add a volume to the destination APFS container. SafetyNet is not applicable in this configuration, so be sure that you have selected an empty volume, or a volume that has data that may be deleted (e.g. When you start the task, the destination will be immediately erased. 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. 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. 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. The Verge 's Chris Welch called it "an essential utility" for advanced users, but also said that Apple's simpler Time Machine was sufficient for most users.Starting in macOS Big Sur (11.0), the system resides on a cryptographically sealed "Signed System Volume". Reception Ĭarbon Copy Cloner has been extensively covered in Apple-related publications, and received positive reviews. Features ĬCC's main window lets users select a source disk and a destination disk, and optionally deselect source files or folders from being copied. A minimal version of the Mac OS, residing on the internal storage device, has to verify the integrity of the operating system carried on the backup device before recovery can take place. In 2021, its creator, Mike Bombich, discovered that Apple silicon Macs cannot boot if the internal storage failed, even if booting from an external drive. It was released as donationware until 2012, when it became shareware starting with version 3.5. English, Japanese, French, German, Italian, Dutchĭonationware until version 3.5, then sharewareĬarbon Copy Cloner is a backup and disk cloning utility for macOS made by Bombich.Ĭarbon Copy Cloner version 1 was released on January 18, 2002.
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