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<!DOCTYPE html><html class="dark" lang="en"><head><meta charset="utf-8"><link href="/favicon.ico" rel="icon"><link href="/favicon.svg" rel="icon" type="image/svg+xml"><meta content="width=device-width,initial-scale=1" name="viewport"><meta content="#000000" name="theme-color"><link href="/rss.xml" rel="alternate" type="application/rss+xml" title="Fezcodex RSS Feed"><meta content="codex by fezcode..." name="description"><meta content="website" property="og:type"><meta content="https://fezcode.com/" property="og:url"><meta content="Fezcodex - Personal Blog and Projects" property="og:title"><meta content="Discover logs, posts, projects, and stories from Fezcode." property="og:description"><meta content="/images/asset/ogtitle.png" property="og:image"><meta content="summary_large_image" name="twitter:card"><meta content="https://fezcode.com/" name="twitter:url"><meta content="Fezcodex - Personal Blog and Projects" name="twitter:title"><meta content="Discover logs, posts, projects, and stories from Fezcode." name="twitter:description"><meta content="/images/asset/ogtitle.png" name="twitter:image"><link href="/logo192.png" rel="apple-touch-icon"><link href="/manifest.json" rel="manifest"><link href="https://fonts.googleapis.com" rel="preconnect"><link href="https://fonts.gstatic.com" rel="preconnect" crossorigin=""><link href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;700&family=Space+Mono:wght@400;700&display=swap" rel="stylesheet"><link href="https://fonts.googleapis.com/css2?family=Arvo&family=Inter&family=Playfair+Display:wght@400;500;600;700;800;900&display=swap" rel="stylesheet"><link href="https://fonts.googleapis.com/css2?family=Syne:wght@700;800&family=Outfit:wght@300;400;500;600&display=swap" rel="stylesheet"><link href="https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500;1,600;1,700&display=swap" rel="stylesheet"><link href="https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Instrument+Sans:ital,wght@0,400..700;1,400..700&family=Nunito:ital,wght@0,200..1000;1,200..1000&display=swap" rel="stylesheet"><link href="https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400..800;1,400..800&display=swap" rel="stylesheet"><title>Upgrading Debian 11 to 13: The Safe Path | Fezcodex Editorial</title><title>fezcodex</title><script defer src="/static/js/main.87f8d95f.js"></script><link href="/static/css/main.c666da2c.css" rel="stylesheet"><link href="https://fonts.googleapis.com" rel="preconnect"><link href="https://fonts.gstatic.com" rel="preconnect"><meta content="# Upgrading Debian 11 to 13: The Safe Path

So, you're on Debian 11 (Bullseye) and want to jump to Debian 13 (Trixie). Maybe you saw some shiny new " name="description"><meta content="linux, debian, upgrade, sysadmin, gist" name="keywords"><meta content="Upgrading Debian 11 to 13: The Safe Path | Fezcodex Editorial" property="og:title"><meta content="# Upgrading Debian 11 to 13: The Safe Path

So, you're on Debian 11 (Bullseye) and want to jump to Debian 13 (Trixie). Maybe you saw some shiny new " property="og:description"><meta content="https://fezcode.com/images/defaults/sina-salehian-HqmTUJD73mM-unsplash.jpg" property="og:image"><meta content="https://fezcode.com/blog/debian-upgrade-path" property="og:url"><meta content="article" property="og:type"><meta content="Fezcodex" property="og:site_name"><meta content="https://fezcode.com/images/defaults/sina-salehian-HqmTUJD73mM-unsplash.jpg" property="og:image:secure_url"><meta content="summary_large_image" name="twitter:card"><meta content="Upgrading Debian 11 to 13: The Safe Path | Fezcodex Editorial" name="twitter:title"><meta content="# Upgrading Debian 11 to 13: The Safe Path

So, you're on Debian 11 (Bullseye) and want to jump to Debian 13 (Trixie). Maybe you saw some shiny new " name="twitter:description"><meta content="https://fezcode.com/images/defaults/sina-salehian-HqmTUJD73mM-unsplash.jpg" name="twitter:image"><meta content="https://fezcode.com/blog/debian-upgrade-path" name="twitter:url"><link href="https://fezcode.com/blog/debian-upgrade-path" rel="canonical"><link href="https://github.com" rel="preconnect"><link href="https://release-assets.githubusercontent.com" rel="preconnect"></head><body class="bg-slate-950" style="cursor:default;user-select:auto"><noscript>You need to enable JavaScript to run this app.</noscript><div id="root"><div class="bg-emerald-600 text-white relative z-[100] border-b-2 border-black selection:bg-white selection:text-black" style="height:auto;opacity:1"><div class="max-w-7xl mx-auto px-4 py-3 flex items-center justify-between gap-4"><div class="flex items-center gap-3 flex-1"><span class="shrink-0"><svg height="20" viewBox="0 0 256 256" width="20" xmlns="http://www.w3.org/2000/svg" fill="currentColor"><path d="M108,84a16,16,0,1,1,16,16A16,16,0,0,1,108,84Zm128,44A108,108,0,1,1,128,20,108.12,108.12,0,0,1,236,128Zm-24,0a84,84,0,1,0-84,84A84.09,84.09,0,0,0,212,128Zm-72,36.68V132a20,20,0,0,0-20-20,12,12,0,0,0-4,23.32V168a20,20,0,0,0,20,20,12,12,0,0,0,4-23.32Z"></path></svg></span><p class="font-mono text-xs md:text-sm font-black uppercase tracking-widest leading-tight">CLIMB THE TALL BUILDING 0 IS ONLINE: BUILD YOUR DECK AND CLIMB. 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d="M208,20H72A36,36,0,0,0,36,56V224a12,12,0,0,0,12,12H192a12,12,0,0,0,0-24H60v-4a12,12,0,0,1,12-12H208a12,12,0,0,0,12-12V32A12,12,0,0,0,208,20ZM120,44h36v59l-10.51-8.41a12,12,0,0,0-15,0L120,103Zm76,128H72a35.59,35.59,0,0,0-12,2.06V56A12,12,0,0,1,72,44H96v84a12,12,0,0,0,19.5,9.37l22.49-18,22.51,18A12,12,0,0,0,180,128V44h16Z"></path></svg><span class="font-arvo text-sm font-medium uppercase tracking-widest">Glossary</span></div><svg height="14" viewBox="0 0 256 256" width="14" xmlns="http://www.w3.org/2000/svg" fill="currentColor" class="opacity-0 group-hover:opacity-100 -translate-x-2 group-hover:translate-x-0 transition-all"><path d="M221.66,133.66l-72,72a8,8,0,0,1-11.32-11.32L196.69,136H40a8,8,0,0,1,0-16H196.69L138.34,61.66a8,8,0,0,1,11.32-11.32l72,72A8,8,0,0,1,221.66,133.66Z"></path></svg></a><a class="group flex items-center justify-between px-6 py-3 transition-all duration-300 border-b border-white/5 text-gray-300 hover:text-white hover:bg-white/5" href="/the-vague" data-discover="true"><div class="flex items-center gap-4"><svg height="18" viewBox="0 0 256 256" width="18" xmlns="http://www.w3.org/2000/svg" fill="currentColor"><path d="M200,164v8h12a12,12,0,0,1,0,24H200v12a12,12,0,0,1-24,0V152a12,12,0,0,1,12-12h32a12,12,0,0,1,0,24ZM92,172a32,32,0,0,1-32,32H56v4a12,12,0,0,1-24,0V152a12,12,0,0,1,12-12H60A32,32,0,0,1,92,172Zm-24,0a8,8,0,0,0-8-8H56v16h4A8,8,0,0,0,68,172Zm100,8a40,40,0,0,1-40,40H112a12,12,0,0,1-12-12V152a12,12,0,0,1,12-12h16A40,40,0,0,1,168,180Zm-24,0a16,16,0,0,0-16-16h-4v32h4A16,16,0,0,0,144,180ZM36,108V40A20,20,0,0,1,56,20h96a12,12,0,0,1,8.49,3.52l56,56A12,12,0,0,1,220,88v20a12,12,0,0,1-24,0v-4H148a12,12,0,0,1-12-12V44H60v64a12,12,0,0,1-24,0ZM160,57V80h23Z"></path></svg><span class="font-arvo text-sm font-medium uppercase tracking-widest">The Vague</span></div><svg height="14" viewBox="0 0 256 256" width="14" xmlns="http://www.w3.org/2000/svg" fill="currentColor" class="opacity-0 group-hover:opacity-100 -translate-x-2 group-hover:translate-x-0 transition-all"><path d="M221.66,133.66l-72,72a8,8,0,0,1-11.32-11.32L196.69,136H40a8,8,0,0,1,0-16H196.69L138.34,61.66a8,8,0,0,1,11.32-11.32l72,72A8,8,0,0,1,221.66,133.66Z"></path></svg></a></nav><button class="flex items-center justify-between w-full px-6 py-4 border-b border-white/10 transition-all duration-300 text-gray-600 hover:text-gray-400 border-l-2 border-transparent"><span class="font-arvo text-[11px] uppercase tracking-[0.2em]">// Applications</span><span class="transform transition-transform duration-300 rotate-180">↓</span></button><nav class="flex flex-col"><a class="group flex items-center justify-between px-6 py-3 transition-all duration-300 border-b border-white/5 text-gray-300 hover:text-white hover:bg-white/5" href="https://fezcode.com/castarook/"><div class="flex items-center gap-4"><svg height="18" viewBox="0 0 256 256" width="18" xmlns="http://www.w3.org/2000/svg" fill="currentColor"><path d="M252,80a32,32,0,1,0-60,15.45l-20.86,25.66L150.82,74.4a32,32,0,1,0-45.64,0L84.87,121.11,64,95.45a32,32,0,1,0-35,15.78l14,84.06A19.94,19.94,0,0,0,62.78,212H193.22A19.94,19.94,0,0,0,213,195.29l14-84.06A32.05,32.05,0,0,0,252,80Zm-32-8a8,8,0,1,1-8,8A8,8,0,0,1,220,72ZM128,44a8,8,0,1,1-8,8A8,8,0,0,1,128,44ZM36,72a8,8,0,1,1-8,8A8,8,0,0,1,36,72ZM189.83,188H66.17L55.29,122.78l23.4,28.79A12,12,0,0,0,88,156a12.87,12.87,0,0,0,1.63-.11,12,12,0,0,0,9.37-7.1L127.18,84l.82,0,.82,0L157,148.79a12,12,0,0,0,9.37,7.1A12.87,12.87,0,0,0,168,156a12,12,0,0,0,9.31-4.43l23.4-28.79Z"></path></svg><span class="font-arvo text-sm font-medium uppercase tracking-widest">Castarook</span></div><svg height="14" viewBox="0 0 256 256" width="14" xmlns="http://www.w3.org/2000/svg" fill="currentColor" class="opacity-0 group-hover:opacity-100 -translate-x-2 group-hover:translate-x-0 transition-all"><path d="M221.66,133.66l-72,72a8,8,0,0,1-11.32-11.32L196.69,136H40a8,8,0,0,1,0-16H196.69L138.34,61.66a8,8,0,0,1,11.32-11.32l72,72A8,8,0,0,1,221.66,133.66Z"></path></svg></a><a class="group flex items-center justify-between px-6 py-3 transition-all duration-300 border-b border-white/5 text-gray-300 hover:text-white hover:bg-white/5" href="https://fezcode.com/Swat-Tactics/"><div class="flex items-center gap-4"><svg height="18" viewBox="0 0 256 256" width="18" xmlns="http://www.w3.org/2000/svg" fill="currentColor"><path d="M208,36H48A20,20,0,0,0,28,56v56c0,54.29,26.32,87.22,48.4,105.29,23.71,19.39,47.44,26,48.44,26.29a12.1,12.1,0,0,0,6.32,0c1-.28,24.73-6.9,48.44-26.29,22.08-18.07,48.4-51,48.4-105.29V56A20,20,0,0,0,208,36Zm-4,76c0,35.71-13.09,64.69-38.91,86.15A126.28,126.28,0,0,1,128,219.38a126.14,126.14,0,0,1-37.09-21.23C65.09,176.69,52,147.71,52,112V60H204ZM79.51,144.49a12,12,0,1,1,17-17L112,143l47.51-47.52a12,12,0,0,1,17,17l-56,56a12,12,0,0,1-17,0Z"></path></svg><span class="font-arvo text-sm font-medium uppercase tracking-widest">Swat Tactics</span></div><svg height="14" viewBox="0 0 256 256" width="14" xmlns="http://www.w3.org/2000/svg" fill="currentColor" class="opacity-0 group-hover:opacity-100 -translate-x-2 group-hover:translate-x-0 transition-all"><path d="M221.66,133.66l-72,72a8,8,0,0,1-11.32-11.32L196.69,136H40a8,8,0,0,1,0-16H196.69L138.34,61.66a8,8,0,0,1,11.32-11.32l72,72A8,8,0,0,1,221.66,133.66Z"></path></svg></a><a class="group flex items-center justify-between px-6 py-3 transition-all duration-300 border-b border-white/5 text-gray-300 hover:text-white hover:bg-white/5" href="https://fezcode.com/climb-the-tall-building-0/"><div class="flex items-center gap-4"><svg height="18" viewBox="0 0 256 256" width="18" xmlns="http://www.w3.org/2000/svg" fill="currentColor"><path d="M216,28H152a12,12,0,0,0-9.33,4.45L79.5,110.51l-4.66-4.65a20,20,0,0,0-28.29,0L29.86,122.55a20,20,0,0,0,0,28.29h0L45,166,23.86,187.17a20,20,0,0,0,0,28.28l16.69,16.69a20,20,0,0,0,28.28,0L90,211l15.17,15.16a20,20,0,0,0,28.29,0l16.69-16.69a20,20,0,0,0,0-28.3l-4.65-4.65,78.06-63.17A12,12,0,0,0,228,104V40A12,12,0,0,0,216,28ZM54.69,212.34l-11-11L62,183l11,11Zm64.61-6L49.65,136.7l11.05-11,69.65,69.65ZM204,98.27l-75.58,61.17L121,152l47.51-47.5a12,12,0,0,0-17-17L104,135l-7.45-7.44L157.73,52H204Z"></path></svg><span class="font-arvo text-sm font-medium uppercase tracking-widest">CTTB-0</span></div><svg height="14" viewBox="0 0 256 256" width="14" xmlns="http://www.w3.org/2000/svg" fill="currentColor" class="opacity-0 group-hover:opacity-100 -translate-x-2 group-hover:translate-x-0 transition-all"><path d="M221.66,133.66l-72,72a8,8,0,0,1-11.32-11.32L196.69,136H40a8,8,0,0,1,0-16H196.69L138.34,61.66a8,8,0,0,1,11.32-11.32l72,72A8,8,0,0,1,221.66,133.66Z"></path></svg></a><a class="group flex items-center justify-between px-6 py-3 transition-all duration-300 border-b border-white/5 text-gray-300 hover:text-white hover:bg-white/5" href="https://fezcode.com/net_run/"><div class="flex items-center gap-4"><svg height="18" viewBox="0 0 256 256" width="18" xmlns="http://www.w3.org/2000/svg" fill="currentColor"><path d="M225.6,62.64l-88-48.17a19.91,19.91,0,0,0-19.2,0l-88,48.17A20,20,0,0,0,20,80.19v95.62a20,20,0,0,0,10.4,17.55l88,48.17a19.89,19.89,0,0,0,19.2,0l88-48.17A20,20,0,0,0,236,175.81V80.19A20,20,0,0,0,225.6,62.64ZM128,36.57,200,76,128,115.4,56,76ZM44,96.79l72,39.4v76.67L44,173.44Zm96,116.07V136.19l72-39.4v76.65Z"></path></svg><span class="font-arvo text-sm font-medium uppercase tracking-widest">Net Run</span></div><svg height="14" viewBox="0 0 256 256" width="14" xmlns="http://www.w3.org/2000/svg" fill="currentColor" class="opacity-0 group-hover:opacity-100 -translate-x-2 group-hover:translate-x-0 transition-all"><path d="M221.66,133.66l-72,72a8,8,0,0,1-11.32-11.32L196.69,136H40a8,8,0,0,1,0-16H196.69L138.34,61.66a8,8,0,0,1,11.32-11.32l72,72A8,8,0,0,1,221.66,133.66Z"></path></svg></a></nav><button class="flex items-center justify-between w-full px-6 py-4 border-b border-white/10 transition-all duration-300 text-gray-600 hover:text-gray-400 border-l-2 border-transparent"><span class="font-arvo text-[11px] uppercase tracking-[0.2em]">// Utilities</span><span class="transform transition-transform duration-300 rotate-180">↓</span></button><nav class="flex flex-col"><a class="group flex items-center justify-between px-6 py-3 transition-all duration-300 border-b border-white/5 text-gray-300 hover:text-white hover:bg-white/5" href="/pinned-apps" data-discover="true"><div class="flex items-center gap-4"><svg height="18" viewBox="0 0 256 256" width="18" xmlns="http://www.w3.org/2000/svg" fill="currentColor"><path d="M238.15,78.54,177.46,17.86a20,20,0,0,0-28.3,0L97.2,70c-12.43-3.33-36.68-5.72-61.74,14.5a20,20,0,0,0-1.6,29.73l45.46,45.47-39.8,39.8a12,12,0,0,0,17,17l39.8-39.81,45.47,45.46A20,20,0,0,0,155.91,228c.46,0,.93,0,1.4-.05A20,20,0,0,0,171.87,220c4.69-6.23,11-16.13,14.44-28s3.45-22.88.16-33.4l51.7-51.87A20,20,0,0,0,238.15,78.54Zm-74.26,68.79a12,12,0,0,0-2.23,13.84c3.43,6.86,6.9,21-6.28,40.65L54.08,100.53c21.09-14.59,39.53-6.64,41-6a11.67,11.67,0,0,0,13.81-2.29l54.43-54.61,55,55Z"></path></svg><span class="font-arvo text-sm font-medium uppercase tracking-widest">Favorites</span></div><svg height="14" viewBox="0 0 256 256" width="14" xmlns="http://www.w3.org/2000/svg" fill="currentColor" class="opacity-0 group-hover:opacity-100 -translate-x-2 group-hover:translate-x-0 transition-all"><path d="M221.66,133.66l-72,72a8,8,0,0,1-11.32-11.32L196.69,136H40a8,8,0,0,1,0-16H196.69L138.34,61.66a8,8,0,0,1,11.32-11.32l72,72A8,8,0,0,1,221.66,133.66Z"></path></svg></a><a class="group flex items-center justify-between px-6 py-3 transition-all duration-300 border-b border-white/5 text-gray-300 hover:text-white hover:bg-white/5" href="/apps" data-discover="true"><div class="flex items-center gap-4"><svg height="18" viewBox="0 0 256 256" width="18" xmlns="http://www.w3.org/2000/svg" fill="currentColor"><path d="M100,36H56A20,20,0,0,0,36,56v44a20,20,0,0,0,20,20h44a20,20,0,0,0,20-20V56A20,20,0,0,0,100,36ZM96,96H60V60H96ZM200,36H156a20,20,0,0,0-20,20v44a20,20,0,0,0,20,20h44a20,20,0,0,0,20-20V56A20,20,0,0,0,200,36Zm-4,60H160V60h36Zm-96,40H56a20,20,0,0,0-20,20v44a20,20,0,0,0,20,20h44a20,20,0,0,0,20-20V156A20,20,0,0,0,100,136Zm-4,60H60V160H96Zm104-60H156a20,20,0,0,0-20,20v44a20,20,0,0,0,20,20h44a20,20,0,0,0,20-20V156A20,20,0,0,0,200,136Zm-4,60H160V160h36Z"></path></svg><span class="font-arvo text-sm font-medium uppercase tracking-widest">App Center</span></div><svg height="14" viewBox="0 0 256 256" width="14" xmlns="http://www.w3.org/2000/svg" fill="currentColor" class="opacity-0 group-hover:opacity-100 -translate-x-2 group-hover:translate-x-0 transition-all"><path d="M221.66,133.66l-72,72a8,8,0,0,1-11.32-11.32L196.69,136H40a8,8,0,0,1,0-16H196.69L138.34,61.66a8,8,0,0,1,11.32-11.32l72,72A8,8,0,0,1,221.66,133.66Z"></path></svg></a><a class="group flex items-center justify-between px-6 py-3 transition-all duration-300 border-b border-white/5 text-gray-300 hover:text-white hover:bg-white/5" href="/commands" data-discover="true"><div class="flex items-center gap-4"><svg height="18" viewBox="0 0 256 256" width="18" xmlns="http://www.w3.org/2000/svg" fill="currentColor"><path d="M224.49,136.49l-72,72a12,12,0,0,1-17-17L187,140H40a12,12,0,0,1,0-24H187L135.51,64.48a12,12,0,0,1,17-17l72,72A12,12,0,0,1,224.49,136.49Z"></path></svg><span class="font-arvo text-sm font-medium uppercase tracking-widest">Manuals</span></div><svg height="14" viewBox="0 0 256 256" width="14" xmlns="http://www.w3.org/2000/svg" fill="currentColor" class="opacity-0 group-hover:opacity-100 -translate-x-2 group-hover:translate-x-0 transition-all"><path d="M221.66,133.66l-72,72a8,8,0,0,1-11.32-11.32L196.69,136H40a8,8,0,0,1,0-16H196.69L138.34,61.66a8,8,0,0,1,11.32-11.32l72,72A8,8,0,0,1,221.66,133.66Z"></path></svg></a></nav><button class="flex items-center justify-between w-full px-6 py-4 border-b border-white/10 transition-all duration-300 text-gray-600 hover:text-gray-400 border-l-2 border-transparent"><span class="font-arvo text-[11px] uppercase tracking-[0.2em]">// System</span><span class="transform transition-transform duration-300">↓</span></button><button class="flex items-center justify-between w-full px-6 py-4 border-b border-white/10 transition-all duration-300 text-gray-600 hover:text-gray-400 border-l-2 border-transparent"><span class="font-arvo text-[11px] uppercase tracking-[0.2em]">// External Nodes</span><span class="transform transition-transform duration-300">↓</span></button></div></div><div class="p-4 border-t border-white/10 bg-black/50"><div class="grid grid-cols-4 gap-2 mb-4"><button class="group flex flex-col items-center justify-center p-2 border border-white/[0.08] bg-white/[0.03] hover:bg-emerald-400 hover:border-emerald-400 transition-all aspect-square" title="COMMANDS"><div class="text-white group-hover:text-black transition-all"><svg height="18" viewBox="0 0 256 256" width="18" xmlns="http://www.w3.org/2000/svg" fill="currentColor"><path d="M232.49,215.51,185,168a92.12,92.12,0,1,0-17,17l47.53,47.54a12,12,0,0,0,17-17ZM44,112a68,68,0,1,1,68,68A68.07,68.07,0,0,1,44,112Z"></path></svg></div></button><button class="group flex flex-col items-center justify-center p-2 border border-white/[0.08] bg-white/[0.03] hover:bg-emerald-400 hover:border-emerald-400 transition-all aspect-square" title="SETTINGS"><div class="text-white group-hover:text-black transition-all"><svg height="18" viewBox="0 0 256 256" width="18" xmlns="http://www.w3.org/2000/svg" fill="currentColor"><path d="M128,76a52,52,0,1,0,52,52A52.06,52.06,0,0,0,128,76Zm0,80a28,28,0,1,1,28-28A28,28,0,0,1,128,156Zm113.86-49.57A12,12,0,0,0,236,98.34L208.21,82.49l-.11-31.31a12,12,0,0,0-4.25-9.12,116,116,0,0,0-38-21.41,12,12,0,0,0-9.68.89L128,37.27,99.83,21.53a12,12,0,0,0-9.7-.9,116.06,116.06,0,0,0-38,21.47,12,12,0,0,0-4.24,9.1l-.14,31.34L20,98.35a12,12,0,0,0-5.85,8.11,110.7,110.7,0,0,0,0,43.11A12,12,0,0,0,20,157.66l27.82,15.85.11,31.31a12,12,0,0,0,4.25,9.12,116,116,0,0,0,38,21.41,12,12,0,0,0,9.68-.89L128,218.73l28.14,15.74a12,12,0,0,0,9.7.9,116.06,116.06,0,0,0,38-21.47,12,12,0,0,0,4.24-9.1l.14-31.34,27.81-15.81a12,12,0,0,0,5.85-8.11A110.7,110.7,0,0,0,241.86,106.43Zm-22.63,33.18-26.88,15.28a11.94,11.94,0,0,0-4.55,4.59c-.54,1-1.11,1.93-1.7,2.88a12,12,0,0,0-1.83,6.31L184.13,199a91.83,91.83,0,0,1-21.07,11.87l-27.15-15.19a12,12,0,0,0-5.86-1.53h-.29c-1.14,0-2.3,0-3.44,0a12.08,12.08,0,0,0-6.14,1.51L93,210.82A92.27,92.27,0,0,1,71.88,199l-.11-30.24a12,12,0,0,0-1.83-6.32c-.58-.94-1.16-1.91-1.7-2.88A11.92,11.92,0,0,0,63.7,155L36.8,139.63a86.53,86.53,0,0,1,0-23.24l26.88-15.28a12,12,0,0,0,4.55-4.58c.54-1,1.11-1.94,1.7-2.89a12,12,0,0,0,1.83-6.31L71.87,57A91.83,91.83,0,0,1,92.94,45.17l27.15,15.19a11.92,11.92,0,0,0,6.15,1.52c1.14,0,2.3,0,3.44,0a12.08,12.08,0,0,0,6.14-1.51L163,45.18A92.27,92.27,0,0,1,184.12,57l.11,30.24a12,12,0,0,0,1.83,6.32c.58.94,1.16,1.91,1.7,2.88A11.92,11.92,0,0,0,192.3,101l26.9,15.33A86.53,86.53,0,0,1,219.23,139.61Z"></path></svg></div></button><button class="group flex flex-col items-center justify-center p-2 border border-white/[0.08] bg-white/[0.03] hover:bg-emerald-400 hover:border-emerald-400 transition-all aspect-square" title="RANDOM"><div class="text-white group-hover:text-black transition-all"><svg height="18" viewBox="0 0 256 256" width="18" xmlns="http://www.w3.org/2000/svg" fill="currentColor"><path 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max-w-6xl tracking-tighter">Upgrading Debian 11 to 13: The Safe Path</h1><div class="flex flex-col items-center gap-8 mt-4"><div class="flex items-center gap-8 font-instr-sans"><a class="inline-flex items-center justify-center h-[2.66667rem] px-[1.33333rem] border-2 uppercase tracking-widest text-[10px] font-black transition-colors border-[#f4f4f4] text-[#f4f4f4] hover:bg-[#f4f4f4] hover:text-[#1a1a1a]" href="/blog" data-discover="true">Back to Index</a><button class="flex items-center gap-4 hover:opacity-70 transition-opacity font-instr-sans" type="button"><span class="uppercase tracking-widest text-xs font-bold">Light Mode</span><span class="w-[0.83333rem] h-[0.83333rem] rounded-full border-2 bg-[#f4f4f4] border-[#f4f4f4]"></span></button></div><div class="flex flex-wrap justify-center gap-6 font-instr-sans uppercase tracking-[0.2em] text-[10px] text-white/60"><a class="hover:underline underline-offset-4 font-bold" href="/blog?category=gist" data-discover="true">gist</a><span class="opacity-30">//</span><span class="font-bold">12/01/2026</span><span class="opacity-30">//</span><span class="font-bold">2 Min Read</span><span class="opacity-30">//</span><span>Updated 12/01/2026</span></div></div></div></div><div class="max-w-5xl mx-auto font-instr-serif text-xl md:text-2xl leading-[1.8] tracking-wide text-justify"><div class=""><div class="mt-20 mb-8"><h2 class="text-5xl font-instr-serif tracking-tight mb-6">Upgrading Debian 11 to 13: The Safe Path</h2><hr class="border-t w-full border-white/25"></div><p class="mb-8 last:mb-0 leading-[1.8]">So, you're on Debian 11 (Bullseye) and want to jump to Debian 13 (Trixie). Maybe you saw some shiny new package, or you just want to be on the cutting edge (or as cutting edge as Debian gets).</p><p class="mb-8 last:mb-0 leading-[1.8]">But here's the catch: <strong class="font-bold text-current">You can't skip a version.</strong></p><p class="mb-8 last:mb-0 leading-[1.8]">Debian upgrades are designed to be sequential. Jumping from 11 straight to 13 is a recipe for a broken system (frankstein packages, dependency hell, the works). The safe path is <strong class="font-bold text-current">11 → 12 → 13</strong>.</p><p class="mb-8 last:mb-0 leading-[1.8]">Here is the quick gist of how to do it properly.</p><div class="mt-16 mb-6"><h2 class="text-4xl font-instr-serif tracking-tight mb-4">Phase 1: Bullseye (11) to Bookworm (12)</h2><hr class="border-t w-full border-white/25"></div><p class="mb-8 last:mb-0 leading-[1.8]">First, make sure your current system is fully updated and clean.</p><pre><div class="relative group my-8 border border-white/10"><div class="absolute -top-3 right-4 flex gap-2 z-10 opacity-0 group-hover:opacity-100 transition-opacity"><button class="px-2 py-1 text-[10px] uppercase font-instr-sans font-bold tracking-widest transition-all rounded-sm border bg-white text-black border-white/10 hover:bg-black hover:text-white">EXPAND</button><button class="px-2 py-1 text-[10px] uppercase font-instr-sans font-bold tracking-widest transition-all rounded-sm border bg-white text-black border-white/10 hover:bg-black hover:text-white">COPY</button></div><div class="rounded-sm overflow-hidden bg-[#111111]"><div class="px-4 py-2 border-b flex justify-between items-center border-white/10 bg-white/5"><span class="font-instr-sans text-[9px] uppercase tracking-[0.2em] text-white/50">bash</span></div><div style='color:#c5c8c6;text-shadow:rgba(0,0,0,.3) 0 1px;font-family:Inconsolata,Monaco,Consolas,"Courier New",Courier,monospace;direction:ltr;text-align:left;white-space:pre;word-spacing:normal;word-break:normal;line-height:1.6;tab-size:4;hyphens:none;padding:1.5rem;margin:0;overflow:auto;border-radius:.3em;background:0 0;font-size:.9rem' node="[object Object]"><code style='white-space:pre;font-family:"JetBrains Mono",monospace'><span class="token" style="color:#7c7c7c"># Clean up any broken sources first!</span><span>

</span><span></span><span class="token" style="color:#7c7c7c"># If you have 404 errors on backports, comment them out in /etc/apt/sources.list</span><span>

</span><span></span><span class="token" style="color:#dad085">sudo</span><span> </span><span class="token" style="color:#dad085">apt</span><span> update

</span><span></span><span class="token" style="color:#dad085">sudo</span><span> </span><span class="token" style="color:#dad085">apt</span><span> full-upgrade </span><span class="token parameter" style="color:#c6c5fe">-y</span></code></div></div></div></pre><p class="mb-8 last:mb-0 leading-[1.8]">Now, switch your sources to Bookworm.</p><pre><div class="relative group my-8 border border-white/10"><div class="absolute -top-3 right-4 flex gap-2 z-10 opacity-0 group-hover:opacity-100 transition-opacity"><button class="px-2 py-1 text-[10px] uppercase font-instr-sans font-bold tracking-widest transition-all rounded-sm border bg-white text-black border-white/10 hover:bg-black hover:text-white">EXPAND</button><button class="px-2 py-1 text-[10px] uppercase font-instr-sans font-bold tracking-widest transition-all rounded-sm border bg-white text-black border-white/10 hover:bg-black hover:text-white">COPY</button></div><div class="rounded-sm overflow-hidden bg-[#111111]"><div class="px-4 py-2 border-b flex justify-between items-center border-white/10 bg-white/5"><span class="font-instr-sans text-[9px] uppercase tracking-[0.2em] text-white/50">bash</span></div><div style='color:#c5c8c6;text-shadow:rgba(0,0,0,.3) 0 1px;font-family:Inconsolata,Monaco,Consolas,"Courier New",Courier,monospace;direction:ltr;text-align:left;white-space:pre;word-spacing:normal;word-break:normal;line-height:1.6;tab-size:4;hyphens:none;padding:1.5rem;margin:0;overflow:auto;border-radius:.3em;background:0 0;font-size:.9rem' node="[object Object]"><code style='white-space:pre;font-family:"JetBrains Mono",monospace'><span class="token" style="color:#dad085">sudo</span><span> </span><span class="token" style="color:#dad085">sed</span><span> </span><span class="token parameter" style="color:#c6c5fe">-i</span><span> </span><span class="token" style="color:#a8ff60">'s/bullseye/bookworm/g'</span><span> /etc/apt/sources.list</span></code></div></div></div></pre><p class="mb-8 last:mb-0 leading-[1.8]">Run the upgrade. This is the big one.</p><pre><div class="relative group my-8 border border-white/10"><div class="absolute -top-3 right-4 flex gap-2 z-10 opacity-0 group-hover:opacity-100 transition-opacity"><button class="px-2 py-1 text-[10px] uppercase font-instr-sans font-bold tracking-widest transition-all rounded-sm border bg-white text-black border-white/10 hover:bg-black hover:text-white">EXPAND</button><button class="px-2 py-1 text-[10px] uppercase font-instr-sans font-bold tracking-widest transition-all rounded-sm border bg-white text-black border-white/10 hover:bg-black hover:text-white">COPY</button></div><div class="rounded-sm overflow-hidden bg-[#111111]"><div class="px-4 py-2 border-b flex justify-between items-center border-white/10 bg-white/5"><span class="font-instr-sans text-[9px] uppercase tracking-[0.2em] text-white/50">bash</span></div><div style='color:#c5c8c6;text-shadow:rgba(0,0,0,.3) 0 1px;font-family:Inconsolata,Monaco,Consolas,"Courier New",Courier,monospace;direction:ltr;text-align:left;white-space:pre;word-spacing:normal;word-break:normal;line-height:1.6;tab-size:4;hyphens:none;padding:1.5rem;margin:0;overflow:auto;border-radius:.3em;background:0 0;font-size:.9rem' node="[object Object]"><code style='white-space:pre;font-family:"JetBrains Mono",monospace'><span class="token" style="color:#dad085">sudo</span><span> </span><span class="token" style="color:#dad085">apt</span><span> update

</span><span></span><span class="token" style="color:#dad085">sudo</span><span> </span><span class="token" style="color:#dad085">apt</span><span> full-upgrade </span><span class="token parameter" style="color:#c6c5fe">-y</span></code></div></div></div></pre><p class="mb-8 last:mb-0 leading-[1.8]"><strong class="font-bold text-current">Reboot your system.</strong></p><div class="mt-16 mb-6"><h2 class="text-4xl font-instr-serif tracking-tight mb-4">Phase 2: Bookworm (12) to Trixie (13)</h2><hr class="border-t w-full border-white/25"></div><p class="mb-8 last:mb-0 leading-[1.8]">Welcome back. You are now on Debian 12. Let's keep going.</p><p class="mb-8 last:mb-0 leading-[1.8]">Update your sources to Trixie.</p><pre><div class="relative group my-8 border border-white/10"><div class="absolute -top-3 right-4 flex gap-2 z-10 opacity-0 group-hover:opacity-100 transition-opacity"><button class="px-2 py-1 text-[10px] uppercase font-instr-sans font-bold tracking-widest transition-all rounded-sm border bg-white text-black border-white/10 hover:bg-black hover:text-white">EXPAND</button><button class="px-2 py-1 text-[10px] uppercase font-instr-sans font-bold tracking-widest transition-all rounded-sm border bg-white text-black border-white/10 hover:bg-black hover:text-white">COPY</button></div><div class="rounded-sm overflow-hidden bg-[#111111]"><div class="px-4 py-2 border-b flex justify-between items-center border-white/10 bg-white/5"><span class="font-instr-sans text-[9px] uppercase tracking-[0.2em] text-white/50">bash</span></div><div style='color:#c5c8c6;text-shadow:rgba(0,0,0,.3) 0 1px;font-family:Inconsolata,Monaco,Consolas,"Courier New",Courier,monospace;direction:ltr;text-align:left;white-space:pre;word-spacing:normal;word-break:normal;line-height:1.6;tab-size:4;hyphens:none;padding:1.5rem;margin:0;overflow:auto;border-radius:.3em;background:0 0;font-size:.9rem' node="[object Object]"><code style='white-space:pre;font-family:"JetBrains Mono",monospace'><span class="token" style="color:#dad085">sudo</span><span> </span><span class="token" style="color:#dad085">sed</span><span> </span><span class="token parameter" style="color:#c6c5fe">-i</span><span> </span><span class="token" style="color:#a8ff60">'s/bookworm/trixie/g'</span><span> /etc/apt/sources.list</span></code></div></div></div></pre><p class="mb-8 last:mb-0 leading-[1.8]">Run the upgrade again.</p><pre><div class="relative group my-8 border border-white/10"><div class="absolute -top-3 right-4 flex gap-2 z-10 opacity-0 group-hover:opacity-100 transition-opacity"><button class="px-2 py-1 text-[10px] uppercase font-instr-sans font-bold tracking-widest transition-all rounded-sm border bg-white text-black border-white/10 hover:bg-black hover:text-white">EXPAND</button><button class="px-2 py-1 text-[10px] uppercase font-instr-sans font-bold tracking-widest transition-all rounded-sm border bg-white text-black border-white/10 hover:bg-black hover:text-white">COPY</button></div><div class="rounded-sm overflow-hidden bg-[#111111]"><div class="px-4 py-2 border-b flex justify-between items-center border-white/10 bg-white/5"><span class="font-instr-sans text-[9px] uppercase tracking-[0.2em] text-white/50">bash</span></div><div style='color:#c5c8c6;text-shadow:rgba(0,0,0,.3) 0 1px;font-family:Inconsolata,Monaco,Consolas,"Courier New",Courier,monospace;direction:ltr;text-align:left;white-space:pre;word-spacing:normal;word-break:normal;line-height:1.6;tab-size:4;hyphens:none;padding:1.5rem;margin:0;overflow:auto;border-radius:.3em;background:0 0;font-size:.9rem' node="[object Object]"><code style='white-space:pre;font-family:"JetBrains Mono",monospace'><span class="token" style="color:#dad085">sudo</span><span> </span><span class="token" style="color:#dad085">apt</span><span> update

</span><span></span><span class="token" style="color:#dad085">sudo</span><span> </span><span class="token" style="color:#dad085">reboot</span></code></div></div></div></pre><div class="mt-16 mb-6"><h2 class="text-4xl font-instr-serif tracking-tight mb-4">Verification</h2><hr class="border-t w-full border-white/25"></div><p class="mb-8 last:mb-0 leading-[1.8]">When you're back, check your version:</p><pre><div class="relative group my-8 border border-white/10"><div class="absolute -top-3 right-4 flex gap-2 z-10 opacity-0 group-hover:opacity-100 transition-opacity"><button class="px-2 py-1 text-[10px] uppercase font-instr-sans font-bold tracking-widest transition-all rounded-sm border bg-white text-black border-white/10 hover:bg-black hover:text-white">EXPAND</button><button class="px-2 py-1 text-[10px] uppercase font-instr-sans font-bold tracking-widest transition-all rounded-sm border bg-white text-black border-white/10 hover:bg-black hover:text-white">COPY</button></div><div class="rounded-sm overflow-hidden bg-[#111111]"><div class="px-4 py-2 border-b flex justify-between items-center border-white/10 bg-white/5"><span class="font-instr-sans text-[9px] uppercase tracking-[0.2em] text-white/50">bash</span></div><div style='color:#c5c8c6;text-shadow:rgba(0,0,0,.3) 0 1px;font-family:Inconsolata,Monaco,Consolas,"Courier New",Courier,monospace;direction:ltr;text-align:left;white-space:pre;word-spacing:normal;word-break:normal;line-height:1.6;tab-size:4;hyphens:none;padding:1.5rem;margin:0;overflow:auto;border-radius:.3em;background:0 0;font-size:.9rem' node="[object Object]"><code style='white-space:pre;font-family:"JetBrains Mono",monospace'><span class="token" style="color:#dad085">cat</span><span> /etc/debian_version

</span><span></span><span class="token" style="color:#7c7c7c"># Should output 13.x (or testing/trixie)</span></code></div></div></div></pre><p class="mb-8 last:mb-0 leading-[1.8]">And that's it. 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