** Tags added: cscc -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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 Status in grub2 package in Ubuntu: Incomplete Status in linux package in Ubuntu: Incomplete Status in grub2 source package in Xenial: New Status in linux source package in Xenial: Incomplete Bug description: [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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1745740/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
