[Bug 1750351] Re: (Thinkpad T470) Boot loop after update

[Moritz Baumann]

Thank you Mathieu, your suspicion was correct: After disabling that
setting, the message on boot is gone, the latest versions of the
packages work and I now see an "ubuntu" entry next to the NVMe entry in
the UEFI boot device menu.

This resolves my immediate issue. I guess the actual problem is that I
did not see an error message telling me that the "ubuntu" entry could
not be written and that I'd have to modify my UEFI settings (or that
this fallback was activated in the first place?). Do you need any more
information from my side?

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Title:
  (Thinkpad T470) Boot loop after update

Status in shim package in Ubuntu:
  Incomplete

Bug description:
  After upgrading shim-signed to 1.33.1~17.10.1 (and installing the grub
  updates that were published at the same time), the system is stuck in
  a boot loop. I've had to downgrade shim and grub to their release
  versions to get the system to boot again.

  The following message gets displayed before the system resets each time:
  > System BootOrder not found. Initializing defaults.
  > Creating boot entry "Boot0000" with label "ubuntu" for file "\EFI\ubuntu\shim64.efi"
  >
  > Reset system

  A similar message, without the last line, was already displayed on
  successful boots before the update.

  According to the information in bug #1747889, the Thinkpad X1 Carbon
  might be affected as well.

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: shim 0.9+1474479173.6c180c6-1ubuntu1
  ProcVersionSignature: Ubuntu 4.13.0-32.35-generic 4.13.13
  Uname: Linux 4.13.0-32-generic x86_64
  .proc.sys.kernel.moksbstate_disabled: Error: [Errno 2] No such file or directory: '/proc/sys/kernel/moksbstate_disabled'
  ApportVersion: 2.20.7-0ubuntu3.7
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Feb 19 11:10:34 2018
  Dependencies:
   
  EFITables:
   Feb 19 10:08:21 mdbauman kernel: efi: EFI v2.50 by Lenovo
   Feb 19 10:08:21 mdbauman kernel: efi:  SMBIOS=0xba69b000  SMBIOS 3.0=0xba698000  ACPI=0xbb5fe000  ACPI 2.0=0xbb5fe014  MEMATTR=0xb4a1f298 
   Feb 19 10:08:21 mdbauman kernel: Secure boot enabled and kernel locked down
   Feb 19 10:08:21 mdbauman kernel: Bluetooth: hci0: Secure boot is enabled
   Feb 19 10:18:41 mdbauman fwupd[2852]: disabling plugin because: failed to coldplug uefi: UEFI firmware updating not supported
  InstallationDate: Installed on 2017-09-09 (162 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170926)
  SecureBoot: 6   0   0   0   1
  SourcePackage: shim
  UpgradeStatus: No upgrade log present (probably fresh install)

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