70026: Acronis Cyber Protect Home Office (Mac): A disk backup fails with errors "CreateSnapshot function failed" and "Failed to create volume snapshot"

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Operating Systems: 

Last update: 11-01-2022

Symptoms

You start a backup of a disk or of the entire Mac, but if fails with the following errors:

  • CreateSnapshot function failed
  • Failed to create volume snapshot

Cause

By default Boot Camp partition is mounted in read-only mode. If Boot Camp partition is mounted in read-write mode by a third-party tool, Acronis software cannot lock this partition for backup.

Solution

As a workaround, mount the Boot Camp partition in read-only mode before running the backup.

Instructions for mounting Boot Camp partition will vary depending on the software that is used to for mounting in read-write mode.

E.g. to mount Boot Camp in read-only mode with Paragon NTFS for Mac:

  1. Open the Paragon NTFS for Mac.
  2. Find the Boot Camp partition in the menu on the left side.
  3. Un-mount the Boot Camp partition using the toolbar button.
  4. Check the "Mount in Read-only mode" box.
  5. Mount the partition back.
  6. Start the backup

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