Every second attempt to enable & start yggdrasil fails due to a dbus error

[RadekBiba]

Describe the bug
If the yggrdasil service is disabled, enabling and starting it fails in exactly 50% cases.

To Reproduce
Steps to reproduce the behavior:

1. Take a fresh RHEL 10 system.
2. Register it with RHSM.
3. Run: systemctl enable --now yggdrasil
4. So far so good, but then try:
5. Disable the service: systemctl disable yggdrasil
6. Repeat the previous command: systemctl enable --now yggdrasil

Expected behavior
OK

Screenshots
This is a command, so let me copy and paste the output instead:

# systemctl enable --now yggdrasil 
Created symlink '/etc/systemd/system/yggd.service' → '/usr/lib/systemd/system/yggdrasil.service'.
Created symlink '/etc/systemd/system/rhcd.service' → '/usr/lib/systemd/system/yggdrasil.service'.
Created symlink '/etc/systemd/system/multi-user.target.wants/yggdrasil.service' → '/usr/lib/systemd/system/yggdrasil.service'.
Job for yggdrasil.service failed because the control process exited with error code.
See "systemctl status yggdrasil.service" and "journalctl -xeu yggdrasil.service" for details.

The log reads:

Aug 21 10:10:11 ip-10-0-0-159 yggd[6491]: [yggd] 2025/08/21 10:10:11 starting yggd version 0.4.5
Aug 21 10:10:11 ip-10-0-0-159 yggd[6491]: cannot setup client: cannot connect client: cannot connect dispatcher: name com.redhat.Yggdrasil1.Dispatcher1 already taken
Aug 21 10:10:11 ip-10-0-0-159 systemd[1]: yggdrasil.service: Main process exited, code=exited, status=1 FAILURE
Aug 21 10:10:11 ip-10-0-0-159 systemd[1]: yggdrasil.service: Failed with result 'exit-code'.

Additional Information

• OS: RHEL 10
• Version: yggdrasil-0.4.5-2.el10_0.x86_64

If I repeat the commands to disable and enable & (re)start yggdrasil, it's OK. If I repeat it again, I get the same error. And so on and so on. I can also reproduce the alternating good and bad results by simple disable/enable/restart commands:

[root@ip-10-0-0-159 ~]# systemctl disable yggdrasil ; systemctl enable yggdrasil ; systemctl restart yggdrasil
Removed '/etc/systemd/system/multi-user.target.wants/yggdrasil.service'.
Removed '/etc/systemd/system/yggd.service'.
Removed '/etc/systemd/system/rhcd.service'.
Created symlink '/etc/systemd/system/yggd.service' → '/usr/lib/systemd/system/yggdrasil.service'.
Created symlink '/etc/systemd/system/rhcd.service' → '/usr/lib/systemd/system/yggdrasil.service'.
Created symlink '/etc/systemd/system/multi-user.target.wants/yggdrasil.service' → '/usr/lib/systemd/system/yggdrasil.service'.
Job for yggdrasil.service failed because the control process exited with error code.
See "systemctl status yggdrasil.service" and "journalctl -xeu yggdrasil.service" for details.
[root@ip-10-0-0-159 ~]# systemctl disable yggdrasil ; systemctl enable yggdrasil ; systemctl restart yggdrasil
Removed '/etc/systemd/system/multi-user.target.wants/yggdrasil.service'.
Removed '/etc/systemd/system/yggd.service'.
Removed '/etc/systemd/system/rhcd.service'.
Created symlink '/etc/systemd/system/yggd.service' → '/usr/lib/systemd/system/yggdrasil.service'.
Created symlink '/etc/systemd/system/rhcd.service' → '/usr/lib/systemd/system/yggdrasil.service'.
Created symlink '/etc/systemd/system/multi-user.target.wants/yggdrasil.service' → '/usr/lib/systemd/system/yggdrasil.service'.
[root@ip-10-0-0-159 ~]# systemctl disable yggdrasil ; systemctl enable yggdrasil ; systemctl restart yggdrasil
Removed '/etc/systemd/system/multi-user.target.wants/yggdrasil.service'.
Removed '/etc/systemd/system/yggd.service'.
Removed '/etc/systemd/system/rhcd.service'.
Created symlink '/etc/systemd/system/yggd.service' → '/usr/lib/systemd/system/yggdrasil.service'.
Created symlink '/etc/systemd/system/rhcd.service' → '/usr/lib/systemd/system/yggdrasil.service'.
Created symlink '/etc/systemd/system/multi-user.target.wants/yggdrasil.service' → '/usr/lib/systemd/system/yggdrasil.service'.
Job for yggdrasil.service failed because the control process exited with error code.
See "systemctl status yggdrasil.service" and "journalctl -xeu yggdrasil.service" for details.
[root@ip-10-0-0-159 ~]# systemctl disable yggdrasil ; systemctl enable yggdrasil ; systemctl restart yggdrasil
Removed '/etc/systemd/system/multi-user.target.wants/yggdrasil.service'.
Removed '/etc/systemd/system/yggd.service'.
Removed '/etc/systemd/system/rhcd.service'.
Created symlink '/etc/systemd/system/yggd.service' → '/usr/lib/systemd/system/yggdrasil.service'.
Created symlink '/etc/systemd/system/rhcd.service' → '/usr/lib/systemd/system/yggdrasil.service'.
Created symlink '/etc/systemd/system/multi-user.target.wants/yggdrasil.service' → '/usr/lib/systemd/system/yggdrasil.service'.
[root@ip-10-0-0-159 ~]# systemctl disable yggdrasil ; systemctl enable yggdrasil ; systemctl restart yggdrasil
Removed '/etc/systemd/system/multi-user.target.wants/yggdrasil.service'.
Removed '/etc/systemd/system/yggd.service'.
Removed '/etc/systemd/system/rhcd.service'.
Created symlink '/etc/systemd/system/yggd.service' → '/usr/lib/systemd/system/yggdrasil.service'.
Created symlink '/etc/systemd/system/rhcd.service' → '/usr/lib/systemd/system/yggdrasil.service'.
Created symlink '/etc/systemd/system/multi-user.target.wants/yggdrasil.service' → '/usr/lib/systemd/system/yggdrasil.service'.
Job for yggdrasil.service failed because the control process exited with error code.
See "systemctl status yggdrasil.service" and "journalctl -xeu yggdrasil.service" for details.
[root@ip-10-0-0-159 ~]#