Wednesday 10 February 2016

Powering on a virtual machine fails: could not open/create change tracking file

Virtual machine does not power on and we see the error.

could not open/create change tracking file vmdk_file_name





To resolve this issue, remove or rename the filename-ctk.vmdk file.

To remove or rename the filename-ctk.vmdk file:

  •     Make note of the SCSI controller type used by the hard disk.
  •     Remove the hard disk specified in the error message from the virtual machine.
  •     Open a Secure Shell session to the host.
  •     Navigate to the virtual machine's folder:


    /vmfs/volumes/GUID/vm_name


  •     Remove or rename the filename-ctk.vmdk file.
  •     Re-add the hard disk back to the virtual machine using the SCSI controller type from step one.
  •     Edit the descriptor file (.vmdk) and remove or comment out any references that specify use of a ctk file.
  •     Power on the virtual machine.

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