[asterisk-users] Problems With DAHDI on Ubuntu

[satish patel]

make sure following init script is on at start up. 

/etc/init.d/dahdi 

Run lsmod command to make sure driver is loaded. 

-S


> Date: Wed, 13 Apr 2011 09:35:52 -0500
> From: sruffell at digium.com
> To: asterisk-users at lists.digium.com
> Subject: Re: [asterisk-users] Problems With DAHDI on Ubuntu
> 
> On Wed, Apr 13, 2011 at 09:48:47AM -0400, Shawn L wrote:
> > I have 2 separate Asterisk servers that are both exibiting this
> > problem.  1 has a 4 port FXO digium card, the other an 8 port.
> > 
> > For some reason when the machine reboots, the dahdi drivers are not
> > properly loaded.  Then asterisk ends up starting without dahdi
> > support.  I've tried everything that I can think of, even to the point
> > of running dahdi_cfg in the asterisk startup script before asterisk
> > itself is started, but it doesn't help.
> > 
> > To fix it, all i have to do is login and run
> > dahdi_cfg
> > /etc/init.d/asterisk restart
> > 
> > but that's a pain to have to do after every reboot.  I've never had
> > this problem with asterisk systems in the past, but now it's happening
> > on the last 2 servers we've setup.  Does anyone have any ideas?  I
> > can't understand why explicitly calling  dahdi_cfg or the
> > dahdi_startup script before starting asterisk isn't working.
> 
> Is there any output from either /etc/init.d/dahdi start or dmesg when
> this happens?
> 
> Normally the process is this (just in case this helps highlight
> something that might not be standard on your system):
> 
> 1) The system boots up, udev runs and *does not* load any drivers
> because all the drivers have been blacklisted in
> /etc/modprobe.d/dahdi.blacklist.conf
> 
> 2) The init scripts are run (distribution specific how you set there,
> chkconfig/update-rc.d/etc...) and /etc/init.d/dahdi looks in
> /etc/dahdi/modules to determine which board specific modules are loaded.
> 
> 3) After all the modules are loaded /etc/init.d/dahdi runs dahdi_cfg to
> parse /etc/dahdi/system.conf and configure the spans and channels
> appropriately.
> 
> In your email you say that the drivers are not properly loaded but to
> fix it neither "dahdi_cfg" or "/etc/init.d/asterisk restart" actually
> loads the drivers.
> 
> Cheers,
> Shaun
> 
> -- 
> Shaun Ruffell
> Digium, Inc. | Linux Kernel Developer
> 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
> Check us out at: www.digium.com & www.asterisk.org
> 
> --
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