![]() ![]() Note for Big Sur users: When prompted to erase the destination, proceed with a Data-only backup instead. Any data that is copied to a volume that is in the midst of encryption conversion will be encrypted immediately. Don't exclude your whole home folder - you must include at least one folder from your home directory so that you can log in to that account on the backup.Īfter you have booted from the backup volume and enabled FileVault, you can then reboot from the production startup disk, remove the exclusions from your backup task, then run the backup task again to copy the remainder of your data. ![]() If either of these scenarios is not acceptable, then we recommend that you exclude any sensitive data from the initial backup task. Likewise, if the conversion process fails for any reason, then the data on that disk is potentially recoverable. If your backup volume is an SSD, and if you delete files from the SSD prior to enabling encryption, then the SSD may automatically move the not-yet-encrypted underlying blocks out of rotation (for wear leveling), and those data could be recoverable by experts. If the encryption conversion process completes successfully, then for most intents and purposes, no trace of the unencrypted data will be left on that disk. What if I don't want my personal data to ever be on the destination in unencrypted form?Įnabling FileVault on the destination means that the volume starts out unencrypted, and then over the course of several hours the data is encrypted in place. If you see an indication that encryption conversion is paused, try leaving the system plugged into AC overnight. To avoid this result, we recommend that you keep your Mac plugged in to AC power for the duration of encryption conversion. The number of reports to us, however, suggests that there is some underlying problem that may be new to macOS Catalina. ![]() ![]() We have been unable to reproduce this result in our test lab - typically encryption conversion pauses when AC power is removed, but then resumes when AC power is restored. We have received a handful of reports from macOS Catalina users indicating that encryption conversion remains permanently paused if AC power is removed during the encryption conversion process. Keep your Mac plugged into AC power for the duration of encryption conversion Some users have found that conversion may not resume until you log in to an admin account while booted from your production startup volume, so try that if conversion appears to be stalled. macOS doesn't offer a convenient method to see conversion progress, but you can type diskutil apfs list (or diskutil cs list if the applicable volume is HFS+ formatted) in the Terminal application to see conversion progress. Encryption will continue as long as the backup disk is attached. You can simply enable FileVault encryption, then immediately reboot from your primary startup disk and the conversion process will carry on in the background. You do not have to wait for the conversion process to complete before rebooting from your production startup diskĪdditionally, you do not have to wait for the conversion process to complete before using your backup disk. Configure CCC for regular backups to your encrypted backup volume.Enable FileVault encryption in the Security & Privacy preference pane of the System Preferences application.Hold down the Option key (Intel Macs) or the Power button (Apple Silicon Macs) while restarting your Mac and choose the backup volume as the startup disk.This step is unnecessary if your destination is an APFS-formatted volume. Note: You must be logged in to an administrator account to perform this step. If you're running an OS older than Mojave, select the destination volume in CCC's sidebar, then click the Recovery HD button to create a Recovery HD volume.Use CCC to back up your startup disk to the unencrypted destination volume.iMac Pro, 2018 MacBook Pro see the full list here). Choose APFS if your Mac is a T2 Mac (e.g. Follow CCC's documentation to properly format the destination volume.If your goal is to create a bootable, encrypted backup, use the following procedure: Enabling encryption on a volume that contains (or will contain) an installation of macOS CCC offers some advice around enabling encryption in the Disk Center. CCC is fully qualified for use with FileVault-protected volumes (HFS+ and APFS). ![]()
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