Symptoms
- You created a backup of Mac with Acronis Cyber Protect Home Office;
- You boot from bootable media, erase system disk and choose Restore data option;
- After recovering data, you attempt to reinstall macOS. Installation fails.
Cause
After data restore, the system volume gets assigned the Data role and macOS cannot be installed on a volume with this role.
Solution
Perform the following steps via the recovery menu to enable macOS reinstallation over a restored Data volume:
- From the top menu select Utilities -> Terminal
- 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 - Type and execute the command below replacing <identifier> with the disk identifier you got in the previous step:
diskutil ap changeVolumeRole <identifier> clear
- Quit Terminal.
- Select "Reinstall macOS" from the recovery menu to install macOS on the restored volume.