A while ago, I noticed problems with the old Soekris net4826 devices
with booting problems, particularly from a warm boot. This didn't
show up in my test bed. The primary difference between the test bed
and the deployed devices was that I have serial consoles on the test
bed. Checking that, it was indeed the source of the problem. Grub
was hanging at the boot menu if there was no serial console connected.
We saw this at First Unitarian and (iirc) at one of the devices on
NodeMississippi.
Yesterday, I was supposed to be doing something else, so instead spent
some time chasing down this problem, partly documented here:
https://bugs.lede-project.org/index.php?do=details&task_id=744
I tried a series of images I built, and had to go back a couple years
ago before I found one that worked without a serial console connected.
After poking around a bit, I made a wild if slightly educated guess
that CONFIG_GRUB_CONSOLE might be related. I tried turning that off,
and presto-chango, problem solved. So, after some testing in my
basement, early this morning, I updated the image on
ap2.firstunitarian.ptp (the Soekris net4826 that is on the bell tower
at First Unitarian Church). It came back up cleanly, and I think we
can conclude that problem is probably solved.
That's all.
--
Russell Senior, President
rus...@personaltelco.net