29 Jun
2010
29 Jun
'10
2:10 p.m.
Hello,
I need to start jackd server in realtime mode on boot for an audio embedded
Linux based project. However it seems that for OS using PAM like Debian, it's
impossible to get RT priorities for the predefined jackd user during the boot.
I know that starting jackd on boot is something deprecated on most distributions
for security reasons. But, for an embedded system, I think this makes sense as
no other user will ever log in.
So, here's my question : how to get RT priorities for non-root users on boot for
jackd 0.118 or 1.9.5 ?
Thanks for help,
Cheers,
Guillaume Pellerin
PS : of course, on my system, the jackd server is working perfectly in RT mode
when the user log in and manually start the daemon, even in sudo mode..
29 Jun
29 Jun
5:27 p.m.
On Tue, 29 Jun 2010, Lists Parisson wrote:
I need to start jackd server in realtime mode on boot
for an audio embedded
Linux based project. However it seems that for OS using PAM like Debian, it's
impossible to get RT priorities for the predefined jackd user during the boot.
Have you tried starting it in an RC-script that's run at
runlevel 2 or higher? (Runlevel 2 is the first multi-user
runlevel.)
Also, seems like you would want it near the end... like
S99myinitscript or something.
This way, it's more likely that PAM is up and running.
-gabriel
5:37 p.m.
On 29 June 2010 23:27, Gabriel M. Beddingfield <gabrbedd(a)gmail.com> wrote:
On Tue, 29 Jun 2010, Lists Parisson wrote:
You can start jack in a startup profile, or by a daemon as user with
su -c. There were some discussions on this, and of particular note
recently:
http://linuxaudio.org/mailarchive/lad/2010/3/7/166506
--
GPG/PGP ID: B42DDCAD
I need to start jackd server in realtime mode on
boot for an audio
embedded
Linux based project. However it seems that for OS using PAM like Debian,
it's
impossible to get RT priorities for the predefined jackd user during the
boot.
Have you tried starting it in an RC-script that's run at runlevel 2 or
higher? (Runlevel 2 is the first multi-user runlevel.)
Also, seems like you would want it near the end... like S99myinitscript or
something.
This way, it's more likely that PAM is up and running.
6:04 p.m.
Le 29/06/2010 17:27, Gabriel M. Beddingfield a écrit :
On Tue, 29 Jun 2010, Lists Parisson wrote:
Yes I use a RC-script in /etc/init.d/ (in Debian) and a sym link to
/etc/rc2.d/S97jackd.
But this didn't work without the PAM module rule modification and the use of "su
-c login" proposed by Stephano in this thread.
Now it works very good :)
Thanks a lot to all of you !
As usual, great support on LAU/LAD
Guillaume
I need to start jackd server in realtime mode on
boot for an audio
embedded
Linux based project. However it seems that for OS using PAM like
Debian, it's
impossible to get RT priorities for the predefined jackd user during
the boot.
Have you tried starting it in an RC-script that's run at runlevel 2 or
higher? (Runlevel 2 is the first multi-user runlevel.)
Also, seems like you would want it near the end... like S99myinitscript
or something.
This way, it's more likely that PAM is up and running.
-gabriel
6:33 p.m.
On 29 June 2010 17:04, Lists Parisson <lists(a)parisson.com> wrote:
Le 29/06/2010 17:27, Gabriel M. Beddingfield a écrit
:
Related, slightly OT, but maybe of interest:
http://www.enricozini.org/sw/nodm/
"is an automatic display manager which automatically starts an X
session at system boot. It is meant for devices like smartphones, but
can be used on a regular computer as well, if the security
implications are acceptable."
James.
On Tue, 29 Jun 2010, Lists Parisson wrote:
Yes I use a RC-script in /etc/init.d/ (in Debian) and a sym link to
/etc/rc2.d/S97jackd.
But this didn't work without the PAM module rule modification and the use of
"su
-c login" proposed by Stephano in this thread.
Now it works very good :)
Thanks a lot to all of you !
As usual, great support on LAU/LAD I need to start jackd server in realtime mode on
boot for an audio
embedded
Linux based project. However it seems that for OS using PAM like
Debian, it's
impossible to get RT priorities for the predefined jackd user during
the boot.
Have you tried starting it in an RC-script that's run at runlevel 2 or
higher? (Runlevel 2 is the first multi-user runlevel.)
Also, seems like you would want it near the end... like S99myinitscript
or something.
This way, it's more likely that PAM is up and running.
7 p.m.
Related, slightly OT, but maybe of interest:
http://www.enricozini.org/sw/nodm/
"is an automatic display manager which automatically starts an X
session at system boot. It is meant for devices like smartphones, but
can be used on a regular computer as well, if the security
implications are acceptable."
James.
That's a nice one.
I personaly use a VNC server to start audio apps on boot like jack-rack after jackd.
Thanks,
G
8:32 p.m.
On Tue, 29 Jun 2010 19:00:33 +0200
Lists Parisson <lists(a)parisson.com> wrote:
I have my machine configured for paswordless aulto login to a normal
user. My window manager is set to run qjackctl as the very last thing
it does. Qjackctl is configured to start jack straight away.
- works for me :)
--
Will J Godfrey
http://www.musically.me.uk
Say you have a poem and I have a tune.
Exchange them and we can both have a poem, a tune, and a song.
Related,
slightly OT, but maybe of interest:
http://www.enricozini.org/sw/nodm/
"is an automatic display manager which automatically starts an X
session at system boot. It is meant for devices like smartphones, but
can be used on a regular computer as well, if the security
implications are acceptable."
James.
That's a nice one.
I personaly use a VNC server to start audio apps on boot like jack-rack after jackd.
Thanks,
G 
9:20 p.m.
James Morris wrote:
On 29 June 2010 17:04, Lists Parisson
<lists(a)parisson.com> wrote:
You don't need such a thing as nodm. Just use something like rungetty
and start up any window manager through .bashrc
Best,
Jeremy
Le 29/06/2010 17:27, Gabriel M. Beddingfield a
écrit :
Related, slightly OT, but maybe of interest:
http://www.enricozini.org/sw/nodm/
"is an automatic display manager which automatically starts an X
session at system boot. It is meant for devices like smartphones, but
can be used on a regular computer as well, if the security
implications are acceptable."
James.
On Tue, 29 Jun 2010, Lists Parisson wrote:
Yes I use a RC-script
in /etc/init.d/ (in Debian) and a sym link to
/etc/rc2.d/S97jackd.
But this didn't work without the PAM module rule modification and the use of
"su
-c login" proposed by Stephano in this thread.
Now it works very good :)
Thanks a lot to all of you !
As usual, great support on LAU/LAD I need to start jackd server in realtime mode on
boot for an audio
embedded
Linux based project. However it seems that for OS using PAM like
Debian, it's
impossible to get RT priorities for the predefined jackd user during
the boot.
Have you tried starting it in an RC-script that's run at runlevel 2
or
higher? (Runlevel 2 is the first multi-user runlevel.)
Also, seems like you would want it near the end... like S99myinitscript
or something.
This way, it's more likely that PAM is up and running.
5057
days inactive
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days old
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7 comments
6 participants
participants (6)
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Folderol -
Gabriel M. Beddingfield -
James Morris -
Jeremy Jongepier -
Lists Parisson -
Ray Rashif