It may take several hours, or even days, before encryption is done, depending on the volume of data to be encrypted.The encryption task will continue as long as you're plugged into power and the external disk is connected. You can reboot from your internal drive for better performance, after enabling FileVault on the external.Enable FileVault encryption as usual from the Security & Privacy panel in System Preferences.Hold down option key during startup to select the boot disk. This will automatically create a new Recovery HD partition associated with the target disk. Run the installer, choosing the external clone disk as the target.Download the High Sierra installer from the App Store.Given all of this, how can I create a bootable, encrypted clone of my APFS High Sierra source drive using Carbon Copy Cloner 4 (CCC4) and using external HFS+ disks? You don't need a recovery system to install and use macOS, but without it you can't use FileVault, set up a firmware password, or use Disk Utility to repair the disk. Without a Recovery System, FileVault won't encrypt your startup drive. However, FileVault requires a Recovery HD in order to encrypt the volume, according to Apple's support documentation: a hard disk drive, or HDD), or if you are backing up an operating system older than 10.13.Īnyone who's upgraded to High Sierra with an SSD internal disk knows that your startup disk was automatically updated from HFS+ to AFPS as part of that upgrade.Ī Recovery HD on an external clone might not seem like that big of a deal: you could use a bootable USB thumb drive, or maybe Internet Recovery, if needed. Choose Mac OS Extended (Journaled) if your destination device is a spinning-platter-based device (i.e. an SSD) and will be used to back up 10.13 or higher. Mirroring Apple's recommendations, we recommend that you choose APFS if your destination device is a Flash storage-based device (e.g. Starting in macOS High Sierra, both APFS and Mac OS Extended (Journaled) are acceptable formats for a backup of macOS 10.13. CCC v5 adds support for APFS recovery volumes.Īccording to other CCC documentation, spinning platter target disks should be formatted as HFS+: If your source volume is formatted APFS, CCC v4 will not be able to create (or update) a recovery volume on the destination. Note: CCC v4 requires an HFS+ formatted source for creating Recovery HD volumes on HFS+ formatted destination volumes. According to the Carbon Copy Cloner documentation CCC4 cannot clone the Recovery HD from an APFS source to an HFS+ target:
0 Comments
Leave a Reply. |