Unable to boot
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Expired
|
Medium
|
Unassigned |
Bug Description
I upgraded overnight from Wily to Xenial. The system will not boot. Only a blank screen after grub loads the kernel.
The recovery kernel loads fine and I was able to find the following messages:
[drm] VGACON disable radeon kernel modesetting
[drm:radeon_init [radeon]] *ERROR* no UMS support in radeon module!
The recovery kernel command line had a nomodeset parameter that was not in the main kernel command line.
Note: For what it's worth I reported a similar issue against several Utopic kernels (bug #1407505). There was a back and forth with jsalisbury until a kernel finally worked. I have had no problems until today.
WORKAROUND: Adding the nomodeset parameter the main kernel command line finally booted the system.
affects: | linux-meta (Ubuntu) → linux (Ubuntu) |
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1568211
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.