[Bug 1909734] Re: TPM PCR checking will fail if the all characters are 0

[jeremyszu]

** Also affects: fwupd (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1909734

Title:
  TPM PCR checking will fail if the all characters are 0

Status in OEM Priority Project:
  Triaged
Status in fwupd package in Ubuntu:
  New

Bug description:
  In some of HP platforms, the TPM PCR checking will fail on focal
  ubuntu

  $ fwupdmgr get-devices
  ...
  └─System Firmware:
        Device ID: c8489035f8df6f87a1a3cd1baff36129262a5ac1
        Current version: 92.1.0
        Minimum Version: 0.0.1
        Vendor: HP (DMI:HP)
        Update Error: TPM PCR0 differs from reconstruction, please see https://github.com/fwupd/fwupd/wiki/TPM-PCR0-differs-from-reconstruction
        GUID: 116180f2-105d-4ab2-809e-7fabed71217b
        Device Flags: • Internal device
                             • Updatable
                             • Requires AC power
                             • Needs a reboot after installation
                             • Cryptographic hash verification is available
                             • Device is usable for the duration of the update

        Update Error: TPM PCR0 differs from reconstruction, please see
  https://github.com/fwupd/fwupd/wiki/TPM-PCR0-differs-from-
  reconstruction

  ---

  This issue is fixed by upstream commit
  https://github.com/fwupd/fwupd/pull/2394/commits/e265dd1d8687965bee77259ef3482b09b92033c1

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