no console when starting VM from cloud image
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Medium
|
Unassigned | ||
Trusty |
Fix Released
|
Undecided
|
Ming Lei | ||
Utopic |
Fix Released
|
Medium
|
Ming Lei | ||
Vivid |
Fix Released
|
Medium
|
Unassigned |
Bug Description
In current arm64 utopic cloud image, the 'console=' parameter has been removed from grub config, and always resort to 'stdout' DT property which is setup from QEMU.
Unfortunately parsing 'stdout' DT property is just merged to 3.19 kernel, so there is no console usable any more for arm64 utopic VM when booting via uefi/grub.
SRU Justification:
Impact: No console if arm64 Utopic based VM is booted from the cloud image.
Fix: backport stdout enablement patches from 3.19. 5 of these 6 patches are cherry picked from 3.19 to Utopic, and the other one is backported by just dropping the dt self-test code, and with these 6 patches, arm64 utopic VM can be booted with console.
Testcase: Boot one arm64 Utopic VM via uefi/grub.
5ba2ee8 of: support passing console options with stdout-path
5c64126 of: add optional options parameter to of_find_
7507839 of: Add bindings for chosen node, stdout-path
54e15d7 of: correct of_console_
4f2b1f0 of: Enable console on serial ports specified by /chosen/stdout-path
a699dfd of: Create of_console_check() for selecting a console specified in /chosen
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
status: | Incomplete → Confirmed |
Changed in linux (Ubuntu): | |
status: | Confirmed → Triaged |
description: | updated |
Changed in linux (Ubuntu Utopic): | |
importance: | Undecided → Medium |
status: | New → Triaged |
Changed in linux (Ubuntu): | |
status: | Triaged → Fix Released |
description: | updated |
Changed in linux (Ubuntu Utopic): | |
status: | Triaged → Fix Committed |
Changed in linux (Ubuntu Utopic): | |
assignee: | nobody → Ming Lei (tom-leiming) |
Changed in linux (Ubuntu Trusty): | |
status: | New → Confirmed |
summary: |
- no console when starting VM from utopic cloud image + no console when starting VM from cloud image |
Changed in linux (Ubuntu Trusty): | |
assignee: | nobody → Ming Lei (tom-leiming) |
Changed in linux (Ubuntu Trusty): | |
status: | Confirmed → Fix Committed |
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1438585
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.