** Also affects: linux-meta (Ubuntu)
Importance: Undecided
Status: New
** Also affects: stubble (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux-signed (Ubuntu Questing)
Assignee: Juerg Haefliger (juergh) => Andy Whitcroft (apw)
** Changed in: linux-meta (Ubuntu Questing)
Assignee: (unassigned) => Andy Whitcroft (apw)
** Changed in: stubble (Ubuntu Questing)
Assignee: (unassigned) => Andy Whitcroft (apw)
** Changed in: linux-meta (Ubuntu Questing)
Milestone: None => ubuntu-25.10
** Changed in: stubble (Ubuntu Questing)
Milestone: None => ubuntu-25.10
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-meta in Ubuntu.
https://bugs.launchpad.net/bugs/2121352
Title:
arm64: Build stubble kernel
Status in linux-meta package in Ubuntu:
New
Status in linux-signed package in Ubuntu:
New
Status in stubble package in Ubuntu:
New
Status in linux-meta source package in Questing:
New
Status in linux-signed source package in Questing:
New
Status in stubble source package in Questing:
New
Bug description:
For arm64 we want our default signed kernel to be bundled with stubble and
dtbs.
This bug tracks progress on the integration work needed.
stubble will allow us to load device trees automatically as part of an
EFI boot stub on Qualcomm Snapdragon laptops and have them
signed/verified with UEFI secure boot. A more detailed explanation for
how and why we plan this is available in the form of a spec at
https://discourse.ubuntu.com/t/spec-stubble-a-secure-boot-friendly-
device-tree-loading-efi-stub/66560
Status
======
[X] Package stubble - https://launchpad.net/ubuntu/+source/stubble (needs
another update)
[X] MIR - https://bugs.launchpad.net/ubuntu/+source/stubble/+bug/2120322
[X] Get signing request reviewed -
https://github.com/rhboot/shim-review/issues/484
[X] Upload latest stubble changes
[ ] Integrate into kernel build
[ ] Drop flash-kernel dependency from ubuntu-x1*-settings
[ ] Update debian-cd to remove dtb hacks
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