{"id":2276,"date":"2025-08-19T08:53:19","date_gmt":"2025-08-19T06:53:19","guid":{"rendered":"https:\/\/peetzcom.de\/debian-13-trixie-no-network-after-upgrade\/"},"modified":"2025-08-19T09:14:46","modified_gmt":"2025-08-19T07:14:46","slug":"debian-13-trixie-no-network-after-upgrade","status":"publish","type":"post","link":"https:\/\/peetzcom.de\/en\/debian-13-trixie-no-network-after-upgrade\/","title":{"rendered":"Debian 13 \u201cTrixie\u201d &#8211; No Network after Upgrade"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2276\" class=\"elementor elementor-2276 elementor-2268\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-d2ce61c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d2ce61c\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-788d6ca\" data-id=\"788d6ca\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d3884ca elementor-widget elementor-widget-text-editor\" data-id=\"d3884ca\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>With the release of Debian 13 \u201cTrixie\u201d, many users and admins will upgrade existing systems. In principle, this runs &#8211; as usual &#8211; without problems. However, it was noticeable that the updated systems (bare-metal or VM) were sometimes no longer accessible after a reboot. For example, with VMs, the guest agent only reported 127.0.0.1 or IPv6 and\/or existing Docker networks. With bare-metal systems without IPMI or similar, access is then naturally only possible locally. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f4258b9 elementor-widget elementor-widget-heading\" data-id=\"f4258b9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Simple remedy (cause still unclear)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f8505e3 elementor-widget elementor-widget-text-editor\" data-id=\"f8505e3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>What ultimately leads to this is still unclear. Newly set up Debian 13 systems do not show this phenomenon, with identical config of \/etc\/network\/interfaces. <\/p><p>An additional entry in <strong>\/etc\/network\/interfaces.<\/strong> provides a remedy.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5752287 elementor-widget elementor-widget-heading\" data-id=\"5752287\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Example with dynamic IP configuration (before):<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d112658 elementor-widget elementor-widget-code-highlight\" data-id=\"d112658\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"prismjs-tomorrow  \">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-bash \">\n\t\t\t\t<code readonly=\"true\" class=\"language-bash\">\n\t\t\t\t\t<xmp># The primary network interface\nallow-hotplug eno1\niface eno1 inet dhcp<\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-284f759 elementor-widget elementor-widget-heading\" data-id=\"284f759\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Adding \u201cauto\u201d:<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f10ccf1 elementor-widget elementor-widget-code-highlight\" data-id=\"f10ccf1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"prismjs-tomorrow  \">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-bash \">\n\t\t\t\t<code readonly=\"true\" class=\"language-bash\">\n\t\t\t\t\t<xmp># The primary network interface\nallow-hotplug eno1\nauto eno1\niface eno1 inet dhcp<\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f60adc8 elementor-widget elementor-widget-heading\" data-id=\"f60adc8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Setting the entry <strong>before<\/strong> the upgrade<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a5dc3fc elementor-widget elementor-widget-text-editor\" data-id=\"a5dc3fc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>To avoid surprises, you should set the entry for automatically starting the interface at boot time <strong>before the upgrade<\/strong>. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>After upgrading from Debian 12 (Bookworm) to Debian 13 (Trixie), the network connection may not work. A simple change provides a remedy.<\/p>\n","protected":false},"author":1,"featured_media":2280,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[138],"tags":[140,139,141],"class_list":["post-2276","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-linux-en","tag-debian-en","tag-linux-en","tag-trixie-en"],"_links":{"self":[{"href":"https:\/\/peetzcom.de\/en\/wp-json\/wp\/v2\/posts\/2276","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/peetzcom.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/peetzcom.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/peetzcom.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/peetzcom.de\/en\/wp-json\/wp\/v2\/comments?post=2276"}],"version-history":[{"count":0,"href":"https:\/\/peetzcom.de\/en\/wp-json\/wp\/v2\/posts\/2276\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/peetzcom.de\/en\/wp-json\/wp\/v2\/media\/2280"}],"wp:attachment":[{"href":"https:\/\/peetzcom.de\/en\/wp-json\/wp\/v2\/media?parent=2276"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/peetzcom.de\/en\/wp-json\/wp\/v2\/categories?post=2276"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/peetzcom.de\/en\/wp-json\/wp\/v2\/tags?post=2276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}