I can always boot from my backup drives and install the OS updates to them if I want to, but for a backup drive it’s not a big deal to me. I just had to boot from a backup drive yesterday, and it was exactly the same except running an older version of Big Sur. would be backed up since they reside on the Data volume. But any changes made to the apps, documents etc. What you cannot expect, is that any future OS UPDATES be applied to the backup drive (because they’re part of the OS volume, not the Data volume). What does this mean in terms of practicality? You can absolutely create and “maintain” a bootable backup. But it can no longer modify that volume on the backup drive once it’s created. That’s why there are now two volumes, one with just the name of the drive, and the other with “ - Data” appended to it which is where your apps and files live.ĬCC is able to create a FRESH clone of a drive, including the system volume. Basically once the system is installed, nothing else can modify that volume. With Big Sur Apple made a change to what can be written to the system volume of the drive. It does not store any personal data.I have two bootable drives using CCC. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. Avoid using any USB 2.0 pendrives as they tend to become very slow when so much data is being copied. You would get better results if you use USB 3.x compatible device. The clone is bootable and can be used to boot into macOS easily.Ĭhances are that you want to make the clone on an external USB hard drive or SSD. When the task is finished, you will have an exact clone of your Mac’s hard drive. You will see a progress of cloning and files being copied in the Carbon Copy Cloner window.
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