[Bug 1930433] Re: UEFI doesn't load fwupd on Lenovo X1 Carbon 7th

[Steve Langasek]

*** This bug is a duplicate of bug 1929471 ***
    https://bugs.launchpad.net/bugs/1929471

** This bug has been marked a duplicate of bug 1929471
   Shim apparently fails to run fwupd64 (hirsute regression?)

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https://bugs.launchpad.net/bugs/1930433

Title:
  UEFI doesn't load fwupd on Lenovo X1 Carbon 7th

Status in shim package in Ubuntu:
  New

Bug description:
  I have a 7th gen Lenovo X1 Carbon with Ubuntu up-to-date on 21.04, and
  fwupdmgr shows:

  $ fwupdmgr update
  Devices with no available firmware updates: 
   • UEFI Device Firmware
   • UEFI Device Firmware
   • UEFI Device Firmware
   • UEFI dbx
  Devices with the latest available firmware version:
   • Thunderbolt host controller
  Upgrade available for Embedded Controller from 0.1.15 to 0.1.16

  however, if I answer yes to the update and reboot:

  20R1000SUS must remain plugged into a power source for the duration of the update to avoid damage. Continue with update? [Y|n]: y
  Downloading…             [***************************************]
  Decompressing…           [***************************************]
  Authenticating…          [***************************************]
  Authenticating…          [***************************************]
  Updating Embedded Controller…************************************]
  Scheduling…              [***************************************]
  Successfully installed firmware
   • KXG6AZNV512G TOSHIBA
   • Prometheus
   • Prometheus IOTA Config
   • System Firmware
   • UEFI Device Firmware

  An update requires a reboot to complete. Restart now? [y|N]: y

  then the system reboots, but UEFI / grub just boots back into Ubuntu.
  Even if I select the Linux firmware update manually from the UEFI boot
  menu, the system just drops into a grub menu and I can only boot back
  into Linux.  After rebooting the EC is not updated and fwupdmgr offers
  the same upgrade again.

  ProblemType: Bug
  DistroRelease: Ubuntu 21.04
  Package: shim (not installed)
  ProcVersionSignature: Ubuntu 5.11.0-18.19-generic 5.11.17
  Uname: Linux 5.11.0-18-generic x86_64
  .proc.sys.kernel.moksbstate_disabled: Error: [Errno 2] No such file or directory: '/proc/sys/kernel/moksbstate_disabled'
  ApportVersion: 2.20.11-0ubuntu65.1
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Jun  1 08:14:43 2021
  InstallationDate: Installed on 2020-02-27 (460 days ago)
  InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200220)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SecureBoot: 6   0   0   0   1
  SourcePackage: shim
  UpgradeStatus: Upgraded to hirsute on 2021-05-14 (18 days ago)

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