[Bug 1761336] Re: Drops to grub> prompt in Secure Boot Mode

[setchi]

apport information

** Tags added: apport-collected xenial

** Description changed:

  I've Ubuntu installed with Windows 10 in dual-boot. When I run the PC or when I restart it this happens:
  1. I see the motherload screen.
  2. A grub command line appears.
  3. I type 'exit' to halt it.
  4. The motherload screen appears again.
  5. Finally the grub where I can select the OS shows up and all runs properly.
+ --- 
+ .proc.sys.kernel.moksbstate_disabled: Error: [Errno 2] No existe el archivo o el directorio: '/proc/sys/kernel/moksbstate_disabled'
+ ApportVersion: 2.20.1-0ubuntu2.15
+ Architecture: amd64
+ CurrentDesktop: Unity
+ DistroRelease: Ubuntu 16.04
+ EFITables:
+  abr 05 15:07:13 toni-MS-7922 kernel: efi: EFI v2.31 by American Megatrends
+  abr 05 15:07:13 toni-MS-7922 kernel: efi:  ESRT=0xdef80998  ACPI 2.0=0xde7c8000  ACPI=0xde7c8000  SMBIOS=0xf04d0  MPS=0xfd520 
+  abr 05 15:07:13 toni-MS-7922 kernel: esrt: Reserving ESRT space from 0x00000000def80998 to 0x00000000def809d0.
+  abr 05 15:07:13 toni-MS-7922 kernel: Secure boot could not be determined
+ InstallationDate: Installed on 2018-04-04 (0 days ago)
+ InstallationMedia: Ubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64 (20180228)
+ Package: shim-signed 1.33.1~16.04.1+13-0ubuntu2
+ PackageArchitecture: amd64
+ ProcVersionSignature: Ubuntu 4.13.0-38.43~16.04.1-generic 4.13.16
+ SecureBoot: 6   0   0   0   0
+ Tags:  xenial
+ Uname: Linux 4.13.0-38-generic x86_64
+ UpgradeStatus: No upgrade log present (probably fresh install)
+ UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
+ _MarkForUpload: True

** Attachment added: "BootEFIContents.txt"
   https://bugs.launchpad.net/bugs/1761336/+attachment/5102737/+files/BootEFIContents.txt

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https://bugs.launchpad.net/bugs/1761336

Title:
  Drops to grub> prompt in Secure Boot Mode

Status in shim-signed package in Ubuntu:
  Incomplete

Bug description:
  I've Ubuntu installed with Windows 10 in dual-boot. When I run the PC or when I restart it this happens:
  1. I see the motherload screen.
  2. A grub command line appears.
  3. I type 'exit' to halt it.
  4. The motherload screen appears again.
  5. Finally the grub where I can select the OS shows up and all runs properly.
  --- 
  .proc.sys.kernel.moksbstate_disabled: Error: [Errno 2] No existe el archivo o el directorio: '/proc/sys/kernel/moksbstate_disabled'
  ApportVersion: 2.20.1-0ubuntu2.15
  Architecture: amd64
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 16.04
  EFITables:
   abr 05 15:07:13 toni-MS-7922 kernel: efi: EFI v2.31 by American Megatrends
   abr 05 15:07:13 toni-MS-7922 kernel: efi:  ESRT=0xdef80998  ACPI 2.0=0xde7c8000  ACPI=0xde7c8000  SMBIOS=0xf04d0  MPS=0xfd520 
   abr 05 15:07:13 toni-MS-7922 kernel: esrt: Reserving ESRT space from 0x00000000def80998 to 0x00000000def809d0.
   abr 05 15:07:13 toni-MS-7922 kernel: Secure boot could not be determined
  InstallationDate: Installed on 2018-04-04 (0 days ago)
  InstallationMedia: Ubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64 (20180228)
  Package: shim-signed 1.33.1~16.04.1+13-0ubuntu2
  PackageArchitecture: amd64
  ProcVersionSignature: Ubuntu 4.13.0-38.43~16.04.1-generic 4.13.16
  SecureBoot: 6   0   0   0   0
  Tags:  xenial
  Uname: Linux 4.13.0-38-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True

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