SecureBoot-enabled bootloader can be overwritten with non-SB without warning
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
shim (Ubuntu) |
Triaged
|
Medium
|
Unassigned |
Bug Description
I was previously running XUbuntu 15.04 on my Asus UX303L laptop.
The configuration is dual boot with windows 8.1.
I ran the upgrade via the software updater and it proceeded normally.
Upon reboot, I got a red screen saying that something was wrong with secure boot and it had to be fixed in the BIOS.
In BIOS, I disabled Secure boot and was again able to access XUbuntu.
I would like to re-enable secure boot, but cannot.
I am happy to help debugging in any way - I am a qualified computer scientist.
Sincere thanks,
Bob
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-
ProcVersionSign
Uname: Linux 4.2.0-18-generic x86_64
NonfreeKernelMo
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
CurrentDesktop: XFCE
Date: Thu Nov 19 19:25:08 2015
HibernationDevice: RESUME=
InstallationDate: Installed on 2015-05-11 (192 days ago)
InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 8087:0a2a Intel Corp.
Bus 001 Device 002: ID 064e:9700 Suyin Corp. Asus Integrated Webcam
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: ASUSTeK COMPUTER INC. UX303LNB
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.149.2
SourcePackage: linux
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: Upgraded to wily on 2015-11-19 (0 days ago)
dmi.bios.date: 01/22/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: UX303LNB.206
dmi.board.
dmi.board.name: UX303LNB
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: UX303LNB
dmi.product.
dmi.sys.vendor: ASUSTeK COMPUTER INC.
---
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
BootEFIContents:
grub.cfg
grubx64.efi
MokManager.efi
shimx64.efi
CurrentDesktop: XFCE
Dependencies:
DistroRelease: Ubuntu 15.10
EFIBootMgr:
BootCurrent: 0001
Timeout: 1 seconds
BootOrder: 0001,0000
Boot0000* Windows Boot Manager HD(1,GPT,
Boot0001* ubuntu HD(1,GPT,
InstallationDate: Installed on 2015-05-11 (192 days ago)
InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1)
NonfreeKernelMo
Package: shim 0.8-0ubuntu2
PackageArchitec
ProcVersionSign
Tags: wily
Uname: Linux 4.2.0-18-generic x86_64
UpgradeStatus: Upgraded to wily on 2015-11-19 (0 days ago)
UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
information type: | Private Security → Public |
This change was made by a bot.