[asterisk-users] Zaptel kernel module load order

[C. Chad Wallace]

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Mitch Jackson wrote:
> Evening,
>
> My latest asterisk box is having a difficult problem.  It is
> configured with one TE210P and TDM400P with four FXO modules.  I'm
> running FC6.
>
> The TE210P only has a single PRI.
>
> When the system boots, it is completely random what order the zaptel
> modules will get loaded in.  Sometimes zttool shows the FXO as the
> last span, sometimes as the first.  When it does load as the first,
> which happens more often, nothing will initialize properly.  When this
> happens, I have to unload all the zaptel modules, and re-load them
> over and over again, until the hardware comes up in the correct order.
> The order it is loaded is in no way related to what order I load the
> modules on the command line.  This problems makes it unlikely that
> asterisk will start properly if the system is rebooted.
>
> Is there something I can do to ensure the modules get loaded in the
> correct order?
If you use udev (and subsequently modprobe), you can override the
install command for the TDM card to load the T1 card first:

Create a file in the /etc/modprobe.d directory, and put the following
line in it:

install wctdm4xxp modprobe wcte21xp && modprobe --ignore-install
wctdm4xxp $CMDLINE_OPTS && /sbin/ztcfg

(Make sure it's all one line; your mail reader might break it.)

This method works for me, with a TE110P and a TDM2400P in the same box. 
However, I am using Debian, and I'm not sure if modprobe and udev work
the same way in FC6.

TTYL.
- --


C. Chad Wallace, B.Sc.
The Lodging Company
http://www.skihills.com/
OpenPGP Public Key ID: 0x262208A0


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