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[Bug 1568211] Re: Unable to boot
Please check the output with deactivated "quiet splash". I've got the
same problem since several weeks, but today I had time to analyze the
problem. I've deactivated "quiet splash" and have seen that the computer
freezes while loading the IDE/UDMA133 drivers, then I detached my IDE
drives - finally ubuntu boots like charm.
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Unable to boot
Status in linux package in Ubuntu:
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
[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
WORKAROUND: Adding the nomodeset parameter the main kernel command
line finally booted the system.
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