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How to install CrashPlan on Big Sur?

CrashPlan with black house icon necessary

Since macOS Catalina (10.13) there is no 32-bit support anymore in macOS. This means that since then at least CrashPlan version 3.x (black house icon) is required. CrashPlan version 2010 (blue house icon) does not contain an app for x86_64 architecture. If you are still using CrashPlan 2010, you will need to restart with version 3.x and a matching new account.

If CrashPlan on macOS Big Sur does not start with this message after installation:

Unable to connect to the backup engine, retry?

Unable to connect to the backup engine, retry?

In such a case, the engine has not started. Open a Terminal.app and enter this command:

$ sudo launchctl load -w /Library/LaunchDaemons/com.crashplan.engine.plist

Confirm the command with the Enter ↩︎ key. Wait a few seconds and choose Yes to try again:

Unable to connect to the backup engine, retry?  [ Yes ]

macOS not backing up files with personal data.

Due to Apple's privacy restrictions for files and folders containing personal data in macOS Mojave 10.14 and later, CrashPlan cannot back up some files from locations such as the desktop, contacts, photos and email until you grant access to the CrashPlan app.

Recommended solution

Step 1: Give full disk access to the CrashPlan application

  1. Open Apple System Preferences.
  2. Open Security & Privacy.
    Security & Privacy
  3. Select the Privacy tab.
  4. If the privacy settings are locked:
    1. Click on the lock icon in the bottom left corner.
    2. Enter your device password.
    3. Click Unlock.
  5. In the left pane, select Full Disk Access.
  6. Click on the + icon in the right-hand window.
  7. Navigate to Applications > CrashPlan.
  8. Click Open.
    The following message appears: "CrashPlan" will not have full disk access until it is quit.
  9. Click Quit & Reopen.
    Full Disk Access - CrashPlan
  10. (Optional) Click the lock in the bottom left-hand corner to re-lock the privacy settings.
    Full Disk Access - Locked
  11. (Required) Follow the steps in the next section to restart the CrashPlan service. The CrashPlan application will not have full disk access until the CrashPlan service is restarted.

Step 2: Restart the CrashPlan service

There are two ways to restart the CrashPlan service: reboot your device or enter a command in the command prompt of the CrashPlan application. Choose the option which is easiest for you.

Option 1

Restart your Mac.

Option 2

  1. Open the CrashPlan app.
  2. If necessary, log in to your account.
  3. Double-click on the CrashPlanPROe logo in the upper right corner of the window.
  4. Enter this command:
    restart
  5. Press Enter.
    This shuts down the CrashPlan application, re-verifies the CrashPlan application with the CrashPlan server and restarts the CrashPlan service.

Wie installiere ich CrashPlan auf Big Sur? Hoe installeer ik CrashPlan op Big Sur?