# Installing DAHDI after asterisk **URL:** \ **Category:** Uncategorized\ **Created:** [March 6, 2016, 11:57am UTC](https://community.asterisk.org/t/installing-dahdi-after-asterisk/65882 "2016-03-06T11:57:04Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Dimitris1780](https://avatars.discourse-cdn.com/v4/letter/d/50afbb/32.png) [@Dimitris1780](https://community.asterisk.org/u/Dimitris1780)\ **Post date:** [March 6, 2016, 11:57am UTC](https://community.asterisk.org/t/installing-dahdi-after-asterisk/65882/1 "2016-03-06T11:57:05Z")
Hello all, Beginner user here…I have successfully installed asterisk, created sip extensions etcetera and then decided to try connecting the pstn line. I had not previously installed DAHDI as I didn’t think I would need it at the time. After trying to install DAHDI complete I receive several errors during the make install and make config stages. INSTALL /etc/asterisk/dahdi-linux-complete-2.11.1+2.11.1/linux/drivers/dahdi/dahdi.ko Can’t read private key INSTALL /etc/asterisk/dahdi-linux-complete-2.11.1+2.11.1/linux/drivers/dahdi/dahdi\_dynamic.ko Can’t read private key As a result I have no DAHDI modules on my asterisk system, although after some modifications I have the following: root@moter:/etc/asterisk# lsmod | grep dahdi dahdi\_transcode 16384 1 wctc4xxp dahdi\_voicebus 61440 2 wctdm24xxp,wcte12xp dahdi 229376 15 xpp,wctdm24xxp,wcaxx,wcfxo,wctdm,dahdi\_transcode,oct612x,dahdi\_voicebus,wcb4xxp,wct1xxp,wct4xxp,wcte43x,wcte11xp,wcte12xp,wcte13xp crc\_ccitt 16384 2 wctdm24xxp,dahdi root@moter:/etc/asterisk# /etc/init.d/dahdi start Loading DAHDI hardware modules: wct4xxp: done wcte43x: done wcte12xp: done wcte13xp: done wct1xxp: done wcte11xp: done wctdm24xxp: done wcaxx: done wcfxo: done wctdm: done wcb4xxp: done wctc4xxp: done xpp\_usb: done Running dahdi\_cfg: done. But I cannot locate chan\_dahdi.so root@moter:/etc/dahdi# /etc/init.d/asterisk status ERROR: **ASTERISK\_SBIN\_DIR** /asterisk not found \*CLI\> module show like chan\_dahdi.so Module Description Use Count 0 modules loaded Can anybody tell if this is because DAHDI was not installed prior to Asterisk? If so is there a way to bypass this without affecting the Asterisk configuration? Asterisk is installed from the source on a Ubuntu 14.04 LTS, 3.19.0-49-generic kernel. Thanks in advance for any ideas. ---
**Author:** ![Dimitris1780](https://avatars.discourse-cdn.com/v4/letter/d/50afbb/32.png) [@Dimitris1780](https://community.asterisk.org/u/Dimitris1780)\ **Post date:** [March 6, 2016, 12:28pm UTC](https://community.asterisk.org/t/installing-dahdi-after-asterisk/65882/2 "2016-03-06T12:28:52Z")
Ok, to answer my own question (as it usually happens I guess) I proceeded to make clean ./configure make all make install make config and I now have the desired module \*CLI\> module show like chan\_dahdi.so Module Description Use Count chan\_dahdi.so DAHDI Telephony Driver w/PRI 0 1 modules loaded without (as it seems) losing my initial configurations as I was afraid that would happen 🙂 ---
**Author:** ![jcolp](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/jcolp/32/8848_2.png) [@jcolp](https://community.asterisk.org/u/jcolp)\ **Post date:** [March 6, 2016, 2:34pm UTC](https://community.asterisk.org/t/installing-dahdi-after-asterisk/65882/3 "2016-03-06T14:34:32Z")
Asterisk will not overwrite configuration unless you use “make samples” or the new “make basic-pbx”. Both of these will overwrite the configuration files present on the system. A normal install process won’t. ---
**Author:** ![Dimitris1780](https://avatars.discourse-cdn.com/v4/letter/d/50afbb/32.png) [@Dimitris1780](https://community.asterisk.org/u/Dimitris1780)\ **Post date:** [March 7, 2016, 7:12am UTC](https://community.asterisk.org/t/installing-dahdi-after-asterisk/65882/4 "2016-03-07T07:12:43Z")
Thanks for the info 😉