I thought of a further edge case: 8. What happens if reimaging from the OEM image, and then upgrading to the updates pocket all at once, including the update that triggered this bug together with this for it? Which postinst will run first? If not deterministic, and this one runs first, will that cause a problem? Do we need a Breaks clause for ordering purposes? Or is it OK to remove /etc/default/grub.d/oem-flavour.cfg _before_ the bug is triggered?
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to ubuntu-drivers-common in Ubuntu. https://bugs.launchpad.net/bugs/2083657 Title: Remove oem-flavour.cfg for the OEM kernel retirement Status in OEM Priority Project: In Progress Status in ubuntu-drivers-common package in Ubuntu: Won't Fix Status in ubuntu-drivers-common source package in Jammy: In Progress Bug description: [ Impact ] * This issue affects all Ubuntu OEM preloaded systems that are still utilizing the OEM kernel, particularly those equipped with NVIDIA graphics drivers. * Systems may fail to boot properly due to an outdated OEM kernel conflicting with newer NVIDIA drivers, leading to a black screen on reboot. [ Test Plan ] * To verify the fix, ensure that the file `/etc/default/grub.d/oem-flavour.cfg` is successfully removed from the affected system after applying the update. * Additionally, after the system reboots, check that it boots into the general HWE kernel rather than the OEM kernel. [ Where problems could occur ] * Removing `/etc/default/grub.d/oem-flavour.cfg` may cause systems relying on the OEM kernel for specific hardware compatibility to lose access to certain OEM-specific optimizations. * There is a low risk that after removing the OEM kernel, some hardware features may not function as expected if the general HWE kernel does not fully support them. [ Other Info ] * This patch is targeted only for Ubuntu 22.04 and its associated OEM kernels. * The issue is specific to systems using NVIDIA drivers in conjunction with an outdated OEM kernel, which conflicts with updates to the HWE kernel and NVIDIA packages. 1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About $ lsb_release -rd Description: Ubuntu 22.04.4 LTS Release: 22.04 $ ubuntu-report show | grep DCD "DCD": "canonical-oem-sutton-jammy-amd64-20240606-874" 2) The version of the package you are using, via 'apt-cache policy pkgname' or by checking in Software Center $ apt-cache policy ubuntu-drivers-common ubuntu-drivers-common: Installed: 1:0.9.6.2~0.22.04.6 Candidate: 1:0.9.6.2~0.22.04.7 Version table: 1:0.9.6.2~0.22.04.7 500 500 http://tw.archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages *** 1:0.9.6.2~0.22.04.6 100 100 /var/lib/dpkg/status 1:0.9.6.1 500 500 http://tw.archive.ubuntu.com/ubuntu jammy/main amd64 Packages 3) What you expected to happen * The system should seamlessly upgrade NVIDIA drivers and the HWE kernel without breaking the boot process. The system should boot into the latest supported HWE kernel without encountering compatibility issues with the NVIDIA drivers. 4) What happened instead * After unattended-upgrades, the system rebooted into the OEM kernel, which is outdated and incompatible with the new NVIDIA drivers. As a result, the screen remained black upon reboot. We need to remove /etc/default/grub.d/oem-flavour.cfg to avoid the system booting from deprecated OEM kernels. To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/2083657/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
