disk_unlock

command
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Published: Aug 31, 2020 License: BSD-3-Clause Imports: 12 Imported by: 0

Documentation

Overview

The disk_unlock command is used to unlock a disk drive as follows:

  1. Via BMC, read a 32-byte secret seed known as the Host Secret Seed (HSS) using the OpenBMC IPMI blob transfer protocol
  2. Compute a password as follows: We get the deterministically computed 32-byte HDKF-SHA256 using: - salt: "SKM PROD_V2 ACCESS" - hss: 32-byte HSS - device identity: strings formed by concatenating the assembly serial number, the _ character, and the assembly part number.
  3. Unlock the drive with the given password
  4. Update the partition table for the disk

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