On Mon, 9 Oct 2017, Athanasios Silis wrote:
Hi there, I have setup an audio system around jackd based on ubuntu studio (14.04 LTS). I have written various scripts to setup jackd and clients. It is tested and up running. Now I would like to add a cmd in rc.local in order for the whole system to be brought up at boot.
Be aware that some startup stuff has a timer in it. The setting of ondemand happens 60 seconds after it's startup is run as an example... at least in debian derived stuff.
Installing jackd properly (rt permissions answer yes) should set this stuff up for you anyway.
However the ulimit "set" command fails with message ulimit: real-time priority: cannot modify limit: Operation not permitted I read that ulimits are not ready yet at this time. Is there a way to forcefully "bring them up" in order to have them set for the user "nass" before starting the audio scripts ??
Use sleep 70 at the start of your script? Make sure you are giving nass a login shell may also help. You may have to set environmet variables first as well. Make sure nass is in the audio group or whatever your distro uses to give rt permissions.
I do not know if these things will help, I have run a headless session complete with dbus, pulseaudio, jackdbus and various other audio applications... I really didn't need PA and therefore could have run without the dbus stuff. It was more of an experiment to see what I could do and the headless box had less than 1/4Gb of ram anyway, so it was not practical for real use. I should try setting up a headless jackd box on something newer though where I can make real use of it.
-- Len Ovens www.ovenwerks.net _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
