Recover Vmdk From Flat File Jun 2026

The command above creates both temp.vmdk (descriptor) and temp-flat.vmdk (data). Delete the dummy data file as you only need the descriptor: rm -i temp-flat.vmdk . Rename and edit the descriptor

To recreate a compatible descriptor, you need the exact size of the flat file and its SCSI controller type.

: If the original disk was not thin-provisioned, remove the line ddb.thinProvisioned = "1" . Save and exit ( :wq! ). 5. Verify and Power On recover vmdk from flat file

If you don't have a way to create a dummy disk, you can manually write the descriptor file. This requires a bit of math and careful text editing.

RW <sectors> VMFS "vmname-flat.vmdk"

You must edit specific lines in that text file to match your situation:

#DDB

Generate a unique UUID (use uuidgen on a Linux system or online). Replace <new_uuid> with 60 00 0c 29 12 34 56 78-12 34 56 78 12 34 56 78 (format: 16 hex bytes, space after 8th byte).

Without the descriptor file, vSphere sees the flat file as a useless blob of data. You can’t attach it, and you can’t power on the VM. The command above creates both temp

Sector count = flat_file_size_in_bytes / 512