WORKAROUND (longish): was bookworm and network connections
Starting a new thread so that this doesn't get lost in the postings in the
original thread.
The original thread was started at:
https://lists.debian.org/debian-user/2023/09/msg00024.html
That post contains a description of the problem.
I now have a workaround (although not an explanation) for the problem.
As I noted in the above thread, once the system was up, I could get the
networking to function correctly by manually entering the commands:
sudo nmcli connection down "Wired connection enp11s0(eth0)"
sudo nmcli connection up "Wired connection enp11s0(eth0)"
However, if I put those same nmcli commands in rc.local, the problem was not
resolved.
After floundering for a while, and being suspicious that manual commands once
the system was up were not being treated the same as the same commands in
rc.local, I tried putting these lines in rc.local (whose output I log, so I
can see what's happening):
----
nmcli connection down "Wired connection enp11s0(eth0)"
nmcli
sleep 10
nmcli connection up "Wired connection enp11s0(eth0)"
nmcli
----
These showed that after the first command, everything looked as it should, but
after the second, everything had reverted to the broken state.
But it was still true that if I entered the same commands manually after the
system had completed booting, the networking worked.
But I'm a slow typist, and I wondered if that 10-second pause might be too
short. So I changed it to 20 seconds.
And lo! and behold! That worked.
I tried booting numerous times with a 10-second delay, and also with a
20-second delay. The results were consistent. With a 10-second delay, the
network comes up in an unusable state. With a 20-second delay, it comes up in
a working state. (Which to me suggests a race condition somewhere, but I'll
let the developers deal with the exact cause and finding a proper fix.)
Of course, this is all just a workaround for what appears to be a problem
during network initialisation in the boot process. But it does seem to work.
I will file a bug report.
Doc
--
Web: http://enginehousebooks.com/drevans
Reply to: