https://blog.margrop.net/en/tag/mirror-source/ Recent content in Mirror Source on Margrop Blog Hugo -- gohugo.io en-US Sun, 17 May 2026 10:00:00 +0800 https://blog.margrop.net/en/post/ubuntu-26-apt-source-mirror-dependency-conflict-fix/ Sun, 17 May 2026 10:00:00 +0800 https://blog.margrop.net/en/post/ubuntu-26-apt-source-mirror-dependency-conflict-fix/ <blockquote> <p><strong>TL;DR</strong></p> <p>I switched to a domestic Chinese mirror for Ubuntu and thought it would take 10 minutes. It took two hours. This article documents the entire journey from &ldquo;mirror sync delay causing version mismatch&rdquo; to &ldquo;dpkg forced downgrade&rdquo; to &ldquo;apt fully restored.&rdquo; The core lesson: switching a mirror is not a one-click fix—version consistency is everything. If you swap mirrors on a system that&rsquo;s been running for months, you have a 99% chance of hitting dependency conflicts.</p> <p>All operations in this article are based on Ubuntu 26.04 (Plucky). All IPs, hostnames, and paths are sanitized examples and contain no internal network addresses or sensitive information.</p> </blockquote>