From: David Snopek (xevol_at_newtonave.net)
Date: 10/21/03 11:48 EDT
Message-ID: <15531.207.250.248.246.1066751288.squirrel@mail.newtonave.net> From: "David Snopek" <xevol@newtonave.net> Subject: [Ardour-users] Ardour + Jack and user permissions Date: Tue, 21 Oct 2003 10:48:08 -0500 (CDT) I have a studio setup in the basement of my duplex and we have four musicians living here. So I want to set it up so that each user can have there own seperate collection of sounds and sessions. I have my super-fast harddisk mounted on /home to faciltate this. Each user is part of an "audio" group which lets them read/write to the alsa device. So anyone can log in and do: jackd -d alsa -d hw & ardour But I really want to use "realtime" mode like this: jackd -R -d alsa -d hw Unfortunately, only root can set a thread to "realtime". But when I start jackd as root, ardour reports that no jack server is running unless it is also run as root. I am assuming that this is because the sockets/fifos in /dev/shm/ are owned by root:root with only "wx" for the owner. I have tried a number of things to fix this but ardour always reports something like "cannot connect to shared memory". For the record, I tried: (1) Setting up sudo so that anyone in the "audio" group can run jackd as a special "audio" user whose default group is "audio". This of course failed immediately because the group permission on the /dev/shm/ stuff isn't right. I tried chmod'ing it g+rwx to no avail. (2) Making an /etc/init.d script that starts jackd as root and chmod/chown's it so that the "audio" group has "rwx" permission. Does anyone have any ideas? I could just setup sudo to allow users to run both jackd and ardour as root but I am the only person in the household who really understands Unix-a-likes and don't like the idea of someone accidently writting to delicate parts of the filesystem. Is there any way to allow normal users to set threads as "realtime"? Why doesn't changing the permissions on /dev/shm/* not help? Is there something I can change in the jack source so the they are created with the right permissions initially? Thanks for any help, -- David Snopek. ------------------------------------------------------- This SF.net email is sponsored by OSDN developer relations Here's your chance to show off your extensive product knowledge We want to know what you know. Tell us and you have a chance to win $100 http://www.zoomerang.com/survey.zgi?HRPT1X3RYQNC5V4MLNSV3E54 _______________________________________________ Ardour-users mailing list Ardour-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ardour-users
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