Public bug reported:

[Description]

After updating from 4.4.0-111 to the latest 4.4.0-112, the system with
enabled BIOS SecureBoot mode will fail to boot because of "Operating
System Loading signature not found in SecureBoot database" prompted by
BIOS (See the attachment picture)

[Steps to Reproduce]

1. Prepare a system installed with 16.04.1 and enabled BIOS SecureBoot mode.
2. Update the system (over the Update manager GUI or "apt-get dist-upgrade")
3. Reboot the system to make the update effective.

[Expected Result]

The system gets ready to use after reboot.

[Actual Result]

The system stops at the BIOS stage with the prompted message "Operating
System Loading signature not found in SecureBoot database" prompted by
BIOS (See the attachment picture)

[Reproducible Systems]

So far I reproduced this issue on the following machine:

CID 201410-15915 - Dell XPS 13 9343
CID 201610-25147 - Dell OptiPlex 7450 AIO
(potential candidate[1]) - CID 201610-25144 - Dell Precision 5520
(potential candidate) - CID 201606-22338 - Dell XPS 13 9360

[1] "potential candidate" means the system failed to boot after system
update but have not identified it was encountered the same issue.


------------------------------------------------------------------


ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-112-generic 4.4.0-112.135
ProcVersionSignature: Ubuntu 4.4.0-112.135-generic 4.4.98
Uname: Linux 4.4.0-112-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  tai271828   1742 F.... pulseaudio
 /dev/snd/controlC1:  tai271828   1742 F.... pulseaudio
CurrentDesktop: Unity
Date: Sat Jan 27 21:28:25 2018
HibernationDevice: RESUME=UUID=f182f469-555b-4f5d-b3df-c77ccc5d60c8
InstallationDate: Installed on 2017-03-01 (332 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
MachineType: Dell Inc. XPS 13 9343
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-112-generic.efi.signed 
root=UUID=d464a83f-1802-468f-bf5c-6c2eb6be441b ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-112-generic N/A
 linux-backports-modules-4.4.0-112-generic  N/A
 linux-firmware                             1.157.16
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/14/2015
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A05
dmi.board.name: 0144PA
dmi.board.vendor: Dell Inc.
dmi.board.version: X04
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: 
dmi:bvnDellInc.:bvrA05:bd07/14/2015:svnDellInc.:pnXPS139343:pvr:rvnDellInc.:rn0144PA:rvrX04:cvnDellInc.:ct9:cvr:
dmi.product.name: XPS 13 9343
dmi.sys.vendor: Dell Inc.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: 201410-15915 201606-22338 201610-25144 201610-25147 amd64 apport-bug 
oem-sru tpe-lab xenial

** Attachment added: "Selection_001.png"
   
https://bugs.launchpad.net/bugs/1745740/+attachment/5044008/+files/Selection_001.png

** Description changed:

  [Description]
  
  After updating from 4.4.0-111 to the latest 4.4.0-112, the system with
  enabled BIOS SecureBoot mode will fail to boot because of "Operating
  System Loading signature not found in SecureBoot database" prompted by
  BIOS (See the attachment picture)
  
  [Steps to Reproduce]
  
  1. Prepare a system installed with 16.04.1 and enabled BIOS SecureBoot mode.
  2. Update the system (over the Update manager GUI or "apt-get dist-upgrade")
  3. Reboot the system to make the update effective.
  
  [Expected Result]
  
  The system gets ready to use after reboot.
  
  [Actual Result]
  
  The system stops at the BIOS stage with the prompted message "Operating
  System Loading signature not found in SecureBoot database" prompted by
  BIOS (See the attachment picture)
  
  [Reproducible Systems]
  
  So far I reproduced this issue on the following machine:
  
  CID 201410-15915 - Dell XPS 13 9343
  CID 201610-25147 - Dell OptiPlex 7450 AIO
- (potential candidate[1]) - CID 201610-25144 - Dell Precision 5520 
+ (potential candidate[1]) - CID 201610-25144 - Dell Precision 5520
  (potential candidate) - CID 201606-22338 - Dell XPS 13 9360
  
  [1] "potential candidate" means the system failed to boot after system
  update but have not identified it was encountered the same issue.
+ 
+ 
+ ------------------------------------------------------------------
+ 
  
  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-112-generic 4.4.0-112.135
  ProcVersionSignature: Ubuntu 4.4.0-112.135-generic 4.4.98
  Uname: Linux 4.4.0-112-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.15
  Architecture: amd64
  AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC0:  tai271828   1742 F.... pulseaudio
-  /dev/snd/controlC1:  tai271828   1742 F.... pulseaudio
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  tai271828   1742 F.... pulseaudio
+  /dev/snd/controlC1:  tai271828   1742 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sat Jan 27 21:28:25 2018
  HibernationDevice: RESUME=UUID=f182f469-555b-4f5d-b3df-c77ccc5d60c8
  InstallationDate: Installed on 2017-03-01 (332 days ago)
  InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  MachineType: Dell Inc. XPS 13 9343
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-112-generic.efi.signed 
root=UUID=d464a83f-1802-468f-bf5c-6c2eb6be441b ro quiet splash vt.handoff=7
  RelatedPackageVersions:
-  linux-restricted-modules-4.4.0-112-generic N/A
-  linux-backports-modules-4.4.0-112-generic  N/A
-  linux-firmware                             1.157.16
+  linux-restricted-modules-4.4.0-112-generic N/A
+  linux-backports-modules-4.4.0-112-generic  N/A
+  linux-firmware                             1.157.16
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/14/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A05
  dmi.board.name: 0144PA
  dmi.board.vendor: Dell Inc.
  dmi.board.version: X04
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvrA05:bd07/14/2015:svnDellInc.:pnXPS139343:pvr:rvnDellInc.:rn0144PA:rvrX04:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9343
  dmi.sys.vendor: Dell Inc.

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https://bugs.launchpad.net/bugs/1745740

Title:
  [Xenial] Update to kernel 4.4.0-112-generic make the system failed to
  boot with enabled BIOS SecureBoot mode

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