[Bug 1600320] Update Released
Chris J Arges
1600320 at bugs.launchpad.net
Wed Nov 9 14:09:22 UTC 2016
The verification of the Stable Release Update for grub2 has completed
successfully and the package has now been released to -updates.
Subsequently, the Ubuntu Stable Release Updates Team is being
unsubscribed and will not receive messages about this bug report. In
the event that you encounter a regression using the package from
-updates please report a new bug using ubuntu-bug and tag the bug report
regression-update so we can easily find any regressions.
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https://bugs.launchpad.net/bugs/1600320
Title:
grub-install doesn't install MokManager in UEFI mode
Status in grub2 package in Ubuntu:
Fix Released
Status in grub2 source package in Precise:
Fix Released
Bug description:
[Impact]
Precise users wanting to control Secure Boot behavior, such as disabling shim validation.
This will affect all users of DKMS packages on precise.
[Test case]
1) sudo apt-get install bbswitch-dkms ; follow steps to disable secure boot (may require proposed shim-signed 1.17~...)
2) Reboot
3) Verify that the system boots to MokManager first and prompts the user to disable Secure Boot; then successfully reboots to Ubuntu.
4) sudo modprobe -v bbswitch ; validate that the module loading is attempted and that you either get a succesful result (on systems where bbswitch is useful) or "No such device".
[Regression potential]
Given changing the logic for installing grub files; in the event that the target system detection fails grub-install may attempt to install MokManager to paths that don't exist. This will not break the system.
---
On precise; we don't currently have --target, and thus grub is also missing the logic to install MokManager to /boot/efi/EFI/ubuntu/ for use with shim's toggles and procedures to import signing keys.
Backporting the logic to install MokManager should be fairly
straightforward.
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