69914: Acronis Cyber Protect Home Office: impossible to reinstall macOS after restoring data with bootable media

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Last update: 16-12-2021


  1. You created a backup of Mac with Acronis Cyber Protect Home Office;
  2. You boot from bootable media, erase system disk and choose Restore data option;
  3. After recovering data, you attempt to reinstall macOS. Installation fails.


After data restore, the system volume gets assigned the Data role and macOS cannot be installed on a volume with this role.


Perform the following steps via the recovery menu to enable macOS reinstallation over a restored Data volume:

  1. From the top menu select Utilities -> Terminal
  2. Execute the following command to find an identifier of the restored volume.

    diskutil list

    For example, this line of a command result shows an APFS volume with a name "Macintosh HD - Data" and an identifier "disk3s1".

       1:                APFS Volume Macintosh HD - Data     314.7 GB   disk3s1
  3. Type and execute the command below replacing <identifier> with the disk identifier you got in the previous step:

    diskutil ap changeVolumeRole <identifier> clear

  4. Quit Terminal.
  5. Select "Reinstall macOS" from the recovery menu to install macOS on the restored volume.