Gerbera binds to non-existent/invalid IPv4 address

[mill1000]

Upon reboot, gerbera starts and binds to a non-existent/invalid IPv4 address. I've tried specifying the interface and it made no difference.

Jul 17 16:25:42 RockHole gerbera[1637]: 2022-07-17 16:25:42   info: Initialising UPnP with interface: eth0, port: <unset>
Jul 17 16:25:42 RockHole gerbera[1637]: 2022-07-17 16:25:42   info: IPv4: Server bound to: :49152
Jul 17 16:25:42 RockHole gerbera[1637]: 2022-07-17 16:25:42   info: IPv6: Server bound to: fe80::f9f2:31c6:219d:f9a7:49152
Jul 17 16:25:42 RockHole gerbera[1637]: 2022-07-17 16:25:42   info: IPv6 ULA/GLA: Server bound to: :49153
Jul 17 16:25:42 RockHole gerbera[1637]: 2022-07-17 16:25:42   info: Will send UPnP Alive advertisements every 60 seconds
Jul 17 16:25:42 RockHole gerbera[1637]: 2022-07-17 16:25:42   info: The Web UI can be reached by following this link: http://:49152

If I restart the service it binds as expected and the web interface is accessible.

My systemd service

[Unit]
Description=Gerbera Media Server
After=network.target network-online.target

[Service]
Type=simple
User=gerbera
Group=gerbera
ExecStart=/usr/local/bin/gerbera -c /etc/gerbera/config.xml -e eth0
Restart=on-failure
RestartSec=5

[Install]
WantedBy=multi-user.target

[KarlStraussberger]

Did you check your systemd units whether network.target or network-online.target exist. You may check the defaults of services like mysql or dhcpd.

[mill1000]

Both appear to exist

rock@RockHole:~ $ sudo systemctl status network.target
● network.target - Network
   Loaded: loaded (/lib/systemd/system/network.target; static; vendor preset: enabled)
   Active: active since Sun 2022-07-17 16:31:52 MDT; 1 months 6 days ago
     Docs: man:systemd.special(7)
           https://www.freedesktop.org/wiki/Software/systemd/NetworkTarget

Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.
rock@RockHole:~ $ sudo systemctl status network-online.target
● network-online.target - Network is Online
   Loaded: loaded (/lib/systemd/system/network-online.target; static; vendor preset: enabled)
   Active: active since Sun 2022-07-17 16:31:52 MDT; 1 months 6 days ago
     Docs: man:systemd.special(7)
           https://www.freedesktop.org/wiki/Software/systemd/NetworkTarget

Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.

dhcpd.service only asks for network.target

rock@RockHole:~ $ cat /lib/systemd/system/dhcpcd.service
[Unit]
Description=DHCP Client Daemon
Wants=network.target
Documentation=man:dhcpcd(8)

[Service]
Type=forking
ExecStart=/usr/sbin/dhcpcd
Restart=always

[Install]
WantedBy=multi-user.target

[KarlStraussberger]

Should work as it is.

You may try to remove network.target from the After line and maybe add something like mysql.target (a service that works).

[brannegan]

Had the same issue. The solution for me was:

[Unit]
Description=Gerbera Media Server
After=network-online.target
Wants=network-online.target

Default gerbera.service doesn't wait until network is up.

[mill1000]

Thanks. I'll give that a shot. I've seen similar issues with hzeller/gmrender-resurrect