Public bug reported:
Installing systemd 259~rc1-1ubuntu1 from resolute-proposed in a regular
resolute container appears to break name resolution.
Steps to reproduce:
$ lxc launch ubuntu-daily:resolute tester-r
$ lxc shell tester-r
# vi /etc/apt/sources.list.d/ubuntu.sources # enable proposed
# apt update && apt install systemd -t resolute-proposed
# ping www.google.com
ping: www.google.com: Temporary failure in name resolution
# systemctl status systemd-resolved
× systemd-resolved.service - Network Name Resolution
Loaded: loaded (/usr/lib/systemd/system/systemd-resolved.service; enabled;
preset: enabled)
Active: failed (Result: exit-code) since Mon 2025-12-01 17:55:08 UTC; 2min
30s ago
Duration: 51.860s
Invocation: 91a83903b1b546cb934b1bbc1fdb8d40
TriggeredBy: × systemd-resolved-monitor.socket
× systemd-resolved-varlink.socket
Docs: man:systemd-resolved.service(8)
man:org.freedesktop.resolve1(5)
https://systemd.io/WRITING_NETWORK_CONFIGURATION_MANAGERS
https://systemd.io/WRITING_RESOLVER_CLIENTS
Process: 1431 ExecStart=/usr/lib/systemd/systemd-resolved (code=exited,
status=243/CREDENTIALS)
Main PID: 1431 (code=exited, status=243/CREDENTIALS)
Mem peak: 2.2M
CPU: 9ms
# systemctl status systemd-networkd
× systemd-networkd.service - Network Management
Loaded: loaded (/usr/lib/systemd/system/systemd-networkd.service; enabled;
preset: enabled)
Active: failed (Result: exit-code) since Mon 2025-12-01 17:57:31 UTC; 21s
ago
Duration: 48.491s
Invocation: bcc692a5abe44a7f8b7cc4fea096c76f
TriggeredBy: × systemd-networkd-resolve-hook.socket
× systemd-networkd-varlink.socket
× systemd-networkd.socket
Docs: man:systemd-networkd.service(8)
man:org.freedesktop.network1(5)
Process: 1657 ExecStart=/usr/lib/systemd/systemd-networkd (code=exited,
status=243/CREDENTIALS)
Main PID: 1657 (code=exited, status=243/CREDENTIALS)
FD Store: 0 (limit: 512)
Mem peak: 2M
CPU: 11ms
** Affects: systemd (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2133524
Title:
systemd 259 breaks name resolution in containers
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