Thanks, Tilghman. When I booted from the prior kernel, I deleted the 4.4.0-77 kernel and reran update-grub to point to the older kernel. None of my other systems are bothered by the 4.4.0-77 kernel.

So it goes...

Howard

On 05/08/2017 02:09 PM, Tilghman Lesher wrote:
One more trick:

If you'd like to avoid that particular version from getting you into
trouble in the future, through an inadvertent apt-get upgrade, here's
a trick I learned from dealing with a broken nVidia driver update:

$ ls -l /etc/apt/preferences.d/pin-nvidia ; cat
/etc/apt/preferences.d/pin-nvidia
-rw-r--r-- 1 root root 76 Dec  6 12:11 /etc/apt/preferences.d/pin-nvidia
Package: nvidia-304
Pin: version 304.132-0ubuntu0.16.04.2
Pin-Priority: -1

Throw the package name on the first line, the full package version on
the second, and the -1 Pin tells apt NEVER to install that version.
You can still upgrade beyond it, but this signals to apt that this
particular version is blacklisted.  The filename doesn't matter, but
you could call it something like
"pin-4.4.0-77-kernel-is-stupidly-broken" and it will work fine.


On Mon, May 8, 2017 at 2:03 PM, Tilghman Lesher <[email protected]> wrote:
It would appear that you are not the only one having trouble with
4.4.0-77.  Reverting to a previous kernel does appear to be the
suggested fix:

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1687623

4.4.0-75 does appear to work.  Try installing that version, followed
by removing 4.4.0-77 and see if that works for you after rebooting.

On Mon, May 8, 2017 at 1:56 PM, Tilghman Lesher <[email protected]> wrote:
You ought to be able to alter the grub configuration files to tell it
that the previous kernel version should be the default, thus ensuring
that even if you aren't booted to that particular kernel, that it will
boot to your preferred kernel upon the next reboot.

I'd also suggest posting a bug report back to Ubuntu's bug reporting
system.  I would suspect that it's already been reported, and you can
simply add your "Me too" vote to having it prioritized for a fix.
Persons on the bug report might even have a fix for you, in terms of
adding a particular PPT to get the kernel driver fixes.

On Sun, May 7, 2017 at 8:39 AM, Howard White <[email protected]> wrote:
Just curious; might only be me...  Yes, there are hundreds of different NUC
combinations.

The most recent kernel update, 4.4.0-77, left my NUC in a confused state.
Post upgrade the network interface quit and my wireless keyboard and
pointing device (connected to a USB thing) lost contact, though a USB
keyboard and mouse worked.  After a few minutes of head scratching, I
decided to try the previous kernel and all is square, plumb and level.

Just interrupting GRUB at the correct time to get the option to boot a prior
kernel is challenging enough  :/

Howard

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