ed35851693
When sd-run connects to D-Bus rather than the private socket, it will generate the transient unit name using the bus ID assigned by the D-Bus broker/daemon. The issue is that this ID is only unique per D-Bus run, if the broker/daemon restarts it starts again from 1, and it's a simple incremental counter for each client. So if a transient unit run-u6.service starts and fails, and it is not collected (default on failure), and the system soft-reboots, any new transient unit might conflict as the counter will restart: Failed to start transient service unit: Unit run-u6.service was already loaded or has a fragment file. Get the soft-reboot counter, and if it's greater than zero, append it to the autogenerated unit name to avoid clashes.
System and Service Manager
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