Starting a daemon process but not proceeding until daemon startup process has finished in golang

I have two programs

1. Calls (2)
2. Starts a daemon process (a server) if it's not already started and then do some RPC against that server

I tried to start the daemon-process in (2) with cmd.Run(), but that left the cmd.Run() in (1) running forever, probably because of the daemon child process lingering.

cmd := exec.Command("daemonbinary")
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
cmd.Run()

// do other stuff and eventually exit the program would not work

I then figured I'd use cmd.Start() instead, but the problem is that I have to wait for the daemon process to actually start before I can continue.

How can that be achieved?

To recap, what I want to achieve is:

• start the daemon process in (2) if it's not already running and keep it running indefinitely
• only continue in (2) when that daemon process is properly started
• exit cleanly from (2) without any "relations" between the (2) process and the daemon process lingering.

Edit:

I tried starting it in a separate process group:

    cmd.SysProcAttr = &syscall.SysProcAttr{
        Setpgid: true,
        Pgid:    0,
    }

this did not seem to work.

Edit 2:

I just remove two lines where I had attached os.Stdout and os.Stderr and now the above seems to be working.

Would be nice however to have that stdout and stderr while the program is running?