systemd 249.11-0ubuntu3.11 does *not* solve the issue for me. I seem to
be running into the same situation as Werner in #32 where `optional:
true` from the netplan config is not being respected.
systemd-networkd-wait-online seems to ignore `RequiredForOnline=no` in
the .network config.
Netplan config:
ubuntu@ubuntu:~$ sudo netplan get
network:
version: 2
ethernets:
eth0:
optional: true
dhcp4: true
dhcp6: true
pfe:
match:
name: "pfe*"
optional: true
dhcp4: true
dhcp6: true
systemd-networkd configs:
ubuntu@ubuntu:~$ grep '' /run/systemd/network/10-netplan-*
/run/systemd/network/10-netplan-eth0.network:[Match]
/run/systemd/network/10-netplan-eth0.network:Name=eth0
/run/systemd/network/10-netplan-eth0.network:
/run/systemd/network/10-netplan-eth0.network:[Link]
/run/systemd/network/10-netplan-eth0.network:RequiredForOnline=no
/run/systemd/network/10-netplan-eth0.network:
/run/systemd/network/10-netplan-eth0.network:[Network]
/run/systemd/network/10-netplan-eth0.network:DHCP=yes
/run/systemd/network/10-netplan-eth0.network:LinkLocalAddressing=ipv6
/run/systemd/network/10-netplan-eth0.network:
/run/systemd/network/10-netplan-eth0.network:[DHCP]
/run/systemd/network/10-netplan-eth0.network:RouteMetric=100
/run/systemd/network/10-netplan-eth0.network:UseMTU=true
/run/systemd/network/10-netplan-pfe.network:[Match]
/run/systemd/network/10-netplan-pfe.network:Name=pfe*
/run/systemd/network/10-netplan-pfe.network:
/run/systemd/network/10-netplan-pfe.network:[Link]
/run/systemd/network/10-netplan-pfe.network:RequiredForOnline=no
/run/systemd/network/10-netplan-pfe.network:
/run/systemd/network/10-netplan-pfe.network:[Network]
/run/systemd/network/10-netplan-pfe.network:DHCP=yes
/run/systemd/network/10-netplan-pfe.network:LinkLocalAddressing=ipv6
/run/systemd/network/10-netplan-pfe.network:
/run/systemd/network/10-netplan-pfe.network:[DHCP]
/run/systemd/network/10-netplan-pfe.network:RouteMetric=100
/run/systemd/network/10-netplan-pfe.network:UseMTU=true
eth0 is configured:
ubuntu@ubuntu:~$ networkctl list
IDX LINK TYPE OPERATIONAL SETUP
1 lo loopback carrier unmanaged
2 eth0 ether routable configured
3 can0 can off unmanaged
4 can1 can off unmanaged
5 llcecan0 can off unmanaged
6 llcecan1 can off unmanaged
7 llcecan2 can off unmanaged
8 llcecan3 can off unmanaged
9 llcecan4 can off unmanaged
10 llcecan5 can off unmanaged
11 llcecan6 can off unmanaged
12 llcecan7 can off unmanaged
13 llcecan8 can off unmanaged
14 llcecan9 can off unmanaged
15 llcecan10 can off unmanaged
16 llcecan11 can off unmanaged
17 llcecan13 can off unmanaged
18 llcecan14 can off unmanaged
19 llcecan15 can off unmanaged
20 pfe0 ether degraded configuring
21 pfe1 ether no-carrier configuring
22 pfe2 ether no-carrier configuring
22 links listed.
systemd-networkd-wait-online times out:
ubuntu@ubuntu:~$ sudo SYSTEMD_LOG_LEVEL=debug
/lib/systemd/systemd-networkd-wait-online --timeout=10
Found link 22
Found link 21
Found link 20
Found link 19
Found link 18
Found link 17
Found link 16
Found link 15
Found link 14
Found link 13
Found link 12
Found link 11
Found link 10
Found link 9
Found link 8
Found link 7
Found link 6
Found link 5
Found link 4
Found link 3
Found link 2
Found link 1
llcecan2: link is not managed by networkd (yet?).
llcecan0: link is not managed by networkd (yet?).
llcecan7: link is not managed by networkd (yet?).
llcecan9: link is not managed by networkd (yet?).
llcecan4: link is not managed by networkd (yet?).
llcecan10: link is not managed by networkd (yet?).
pfe1: link is ignored
can0: link is not managed by networkd (yet?).
pfe0: link is ignored
llcecan3: link is not managed by networkd (yet?).
eth0: link is ignored
llcecan11: link is not managed by networkd (yet?).
llcecan6: link is not managed by networkd (yet?).
lo: link is ignored
llcecan13: link is not managed by networkd (yet?).
llcecan1: link is not managed by networkd (yet?).
can1: link is not managed by networkd (yet?).
pfe2: link is ignored
llcecan14: link is not managed by networkd (yet?).
llcecan8: link is not managed by networkd (yet?).
llcecan15: link is not managed by networkd (yet?).
llcecan5: link is not managed by networkd (yet?).
Timeout occurred while waiting for network connectivity.
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https://bugs.launchpad.net/bugs/2036358
Title:
systemd wait-online now times out after jammy and lunar upgrade
Status in systemd package in Ubuntu:
Invalid
Status in systemd source package in Jammy:
Fix Committed
Status in systemd source package in Lunar:
Fix Committed
Bug description:
[NOTE]
If you are running a desktop system and you see this issue, you should
run:
$ systemctl disable --now systemd-networkd.service
This will disable systemd-networkd and associated units, including
systemd-networkd-wait-online.service. NetworkManager and systemd-
networkd should not be running at the same time. On desktop,
NetworkManager is the default network stack.
[Impact]
When all interfaces are "not required for online", e.g. when they are
marked "optional: true" in netplan, systemd-networkd-wait-online will
timeout. Or, in other words, systemd-networkd-wait-online will timeout
even though all interfaces are ignored, hence none of them will ever
be marked as "ready." Depending on what units depend on network-
online.target, this can delay boot by 120 seconds (the default timeout
for systemd-networkd-wait-online).
[Test Plan]
1. Create a new LXD container. These instructions assume jammy is the
release, but the same can be done for lunar.
$ lxc launch ubuntu-daily:jammy jammy
$ lxc exec jammy bash
2. Once in the container, modify the default /etc/netplan/10-lxc.yaml
so that eth0 is configured with "optional: true":
$ vi /etc/netplan/50-cloud-init.yaml # Use whatever editor you like
$ cat /etc/netplan/50-cloud-init.yaml
network:
version: 2
ethernets:
eth0:
dhcp4: true
dhcp-identifier: mac
optional: true
3. Re-generate and apply the netplan configuration.
$ netplan generate
$ netplan apply
4. Manually run systemd-networkd-wait-online, and observe that all
links are ignored, and the command times out:
$ SYSTEMD_LOG_LEVEL=debug /lib/systemd/systemd-networkd-wait-online
--timeout=10
Found link lo(1)
Found link eth0(19)
lo: link is ignored
eth0: link is ignored
Timeout occurred while waiting for network connectivity.
[Where problems could occur]
This patch partially re-instates a patch remove in bug 1982218.
However, instead of exiting if all links are unmanaged, we exit if all
links are ignored in manager_configured(). If the patch was wrong, we
may re-introduce bug 1982218, so as part of this SRU verification,
that bug should be tested too. Any other regressions would also be
related to systemd-networkd-wait-online behavior.
[Original Description]
On Ubuntu 22.04 desktop system using network-manager and upgrading to
systemd 249.11-0ubuntu3.10, wait-online now times out which prevents
logins (GDM, ssh, console) until it does time out. This seems to be
introduced by the change for
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1982218.
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1982218/comments/21
also mentioned the problem on Lunar.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/2036358/+subscriptions
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