{"id":5029,"date":"2025-07-07T08:31:19","date_gmt":"2025-07-07T13:31:19","guid":{"rendered":"https:\/\/dialer.one\/?p=5029"},"modified":"2025-07-07T08:31:35","modified_gmt":"2025-07-07T13:31:35","slug":"how-to-fix-unable-to-open-master-device-dev-dahdi-ctl-for-dahdi","status":"publish","type":"post","link":"https:\/\/dialer.one\/index.php\/how-to-fix-unable-to-open-master-device-dev-dahdi-ctl-for-dahdi\/","title":{"rendered":"How to &#8211; Fix: Unable to open master device &#8216;\/dev\/dahdi\/ctl&#8217; for Dahdi"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">How to &#8211; Fix: Unable to open master device &#8216;\/dev\/dahdi\/ctl&#8217; for Dahdi<\/h1>\n\n\n\n<p>This happens after updating your operating system for redhat distro&#8217;s such as Alma, Rocky or CentOS. Its an easy fix thats outlined below:<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step 1 &#8211; Browse to proper directory<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>cd \/usr\/src\/dahdi-linux-complete-3.4.0+3.4.0\/<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Step 2 &#8211; Recompile Dahdi<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>make &amp;&amp; make install &amp;&amp; modprobe dahdi<\/code><\/pre>\n\n\n\n<p>That&#8217;s all there is to it.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>How to &#8211; Fix: Unable to open master device &#8216;\/dev\/dahdi\/ctl&#8217; for Dahdi This happens after updating your operating system for redhat distro&#8217;s such as Alma, Rocky or CentOS. Its an easy fix thats outlined below: Step 1 &#8211; Browse to proper directory Step 2 &#8211; Recompile Dahdi That&#8217;s all there is to it.<\/p>\n","protected":false},"author":1,"featured_media":4701,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"content-type":"","_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"enabled":false},"version":2}},"categories":[96],"tags":[533,536],"class_list":["post-5029","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vicidial","tag-howto","tag-vicidial"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/dialer.one\/wp-content\/uploads\/2025\/02\/image-9-png.webp","jetpack-related-posts":[{"id":1521,"url":"https:\/\/dialer.one\/index.php\/dahdi-errors-in-asterisk-and-how-to-fix-them\/","url_meta":{"origin":5029,"position":0},"title":"How to &#8211; Fix Dahdi errors(no sounds) in relation to Vicidial","author":"carpenox","date":"February 12, 2021","format":false,"excerpt":"How to - Fix Dahdi errors(no sounds) in relation to Vicidial What is Dahdi's function in Vicidial? Dahdi is essentially what controls the meet-me conferences(Vicidial Conferences as shown below) for Vicidial. So when this is not running, you will get all types of errors, such as, time sync errors, \"no\u2026","rel":"","context":"With 1 comment","block_context":{"text":"With 1 comment","link":"https:\/\/dialer.one\/index.php\/dahdi-errors-in-asterisk-and-how-to-fix-them\/#comments"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/cyburityllc.com\/wp-content\/uploads\/2021\/02\/image-1-1024x103.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/cyburityllc.com\/wp-content\/uploads\/2021\/02\/image-1-1024x103.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/cyburityllc.com\/wp-content\/uploads\/2021\/02\/image-1-1024x103.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/cyburityllc.com\/wp-content\/uploads\/2021\/02\/image-1-1024x103.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":3689,"url":"https:\/\/dialer.one\/index.php\/how-to-fix-vicibox-11-after-kernel-update\/","url_meta":{"origin":5029,"position":1},"title":"How to &#8211; Fix ViciBox 11 after kernel update","author":"carpenox","date":"October 5, 2023","format":false,"excerpt":"How to - Fix ViciBox 11 after kernel update Ok, so it seems that if you run a \"zypper up\" on ViciBox 11, it will update the kernel which then leaves dahdi with errors that won't allow it to start up and calls will have no audio and you will\u2026","rel":"","context":"In &quot;Vicidial&quot;","block_context":{"text":"Vicidial","link":"https:\/\/dialer.one\/index.php\/category\/vicidial\/"},"img":{"alt_text":"ViciBox 11","src":"https:\/\/i0.wp.com\/dialer.one\/wp-content\/uploads\/2023\/10\/image-1.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/dialer.one\/wp-content\/uploads\/2023\/10\/image-1.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/dialer.one\/wp-content\/uploads\/2023\/10\/image-1.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/dialer.one\/wp-content\/uploads\/2023\/10\/image-1.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":4699,"url":"https:\/\/dialer.one\/index.php\/how-to-debug-webphones-for-vicidial\/","url_meta":{"origin":5029,"position":2},"title":"How to &#8211; Debug Webphones for ViciDial","author":"carpenox","date":"February 11, 2025","format":false,"excerpt":"How to - Debug Webphones for ViciDial I get asked several times a day in the Discord and Skype group chats about how to fix peoples webphones. So this article will be the typical steps I take in order to debug these type of issues. Step 1- Is Dahdi running?\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"web socket url","src":"https:\/\/i0.wp.com\/dialer.one\/wp-content\/uploads\/2025\/02\/image-14-png.webp?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/dialer.one\/wp-content\/uploads\/2025\/02\/image-14-png.webp?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/dialer.one\/wp-content\/uploads\/2025\/02\/image-14-png.webp?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":5150,"url":"https:\/\/dialer.one\/index.php\/how-to-install-vicidial-on-alma-linux-10\/","url_meta":{"origin":5029,"position":3},"title":"How to &#8211; Install ViciDial on Alma Linux 10","author":"carpenox","date":"January 29, 2026","format":false,"excerpt":"How to - Install ViciDial on Alma Linux 10 How to Install VICIdial on AlmaLinux 10 Using My Updated Auto\u2011Installer VICIdial admins have been waiting for this one. AlmaLinux 10 is here with a modernized kernel, updated libraries, and a cleaner security model \u2014 but it also breaks a lot\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Alma 10","src":"https:\/\/i0.wp.com\/dialer.one\/wp-content\/uploads\/2026\/01\/image.webp?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/dialer.one\/wp-content\/uploads\/2026\/01\/image.webp?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/dialer.one\/wp-content\/uploads\/2026\/01\/image.webp?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":2201,"url":"https:\/\/dialer.one\/index.php\/how-to-scratch-install-vicidial-on-ubuntu\/","url_meta":{"origin":5029,"position":4},"title":"How to &#8211; scratch install Vicidial on Ubuntu","author":"carpenox","date":"September 8, 2021","format":false,"excerpt":"How to - scratch install Vicidial on Ubuntu This article will go over how to scratch install Vicidial on Ubuntu 14 - 22 Step 1 - The Basics apt-get updateapt-get upgradeapt-get install apache2 -yapt-get install build-essential -yapt-get install mariadb-client-10.3 -yapt-get install mariadb-server -y apt-get install subversion libjansson-dev sqlite autoconf automake\u2026","rel":"","context":"In &quot;Vicidial&quot;","block_context":{"text":"Vicidial","link":"https:\/\/dialer.one\/index.php\/category\/vicidial\/"},"img":{"alt_text":"Realtime Report","src":"https:\/\/i0.wp.com\/dialer.one\/wp-content\/uploads\/2021\/01\/realtime1.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/dialer.one\/wp-content\/uploads\/2021\/01\/realtime1.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/dialer.one\/wp-content\/uploads\/2021\/01\/realtime1.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/dialer.one\/wp-content\/uploads\/2021\/01\/realtime1.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/dialer.one\/wp-content\/uploads\/2021\/01\/realtime1.png?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":1913,"url":"https:\/\/dialer.one\/index.php\/how-to-install-asterisk-16-on-vicidial\/","url_meta":{"origin":5029,"position":5},"title":"How to &#8211; Install Asterisk 16 on Vicidial","author":"carpenox","date":"April 7, 2021","format":false,"excerpt":"How to - Install Asterisk 16 on Vicidial In this article, I will demonstrate Install Asterisk 16 on Vicidial aka vicibox 9. In theory it should also work for you CentOS lovers (bleh) too, but just change the zypper commands to yum. Step 1 - Remove Asterisk 13 & install\u2026","rel":"","context":"With 5 comments","block_context":{"text":"With 5 comments","link":"https:\/\/dialer.one\/index.php\/how-to-install-asterisk-16-on-vicidial\/#comments"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/dialer.one\/wp-content\/uploads\/2021\/04\/image-4.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/dialer.one\/index.php\/wp-json\/wp\/v2\/posts\/5029","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dialer.one\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dialer.one\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dialer.one\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dialer.one\/index.php\/wp-json\/wp\/v2\/comments?post=5029"}],"version-history":[{"count":0,"href":"https:\/\/dialer.one\/index.php\/wp-json\/wp\/v2\/posts\/5029\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dialer.one\/index.php\/wp-json\/wp\/v2\/media\/4701"}],"wp:attachment":[{"href":"https:\/\/dialer.one\/index.php\/wp-json\/wp\/v2\/media?parent=5029"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dialer.one\/index.php\/wp-json\/wp\/v2\/categories?post=5029"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dialer.one\/index.php\/wp-json\/wp\/v2\/tags?post=5029"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}