https://docs.matildes.dev/tags/boot/Recent content in Boot on Samuel Matildes - Knowledge BaseHugoenTue, 26 May 2026 14:15:13 +0100https://docs.matildes.dev/linux/admin/antivirus-boot-issues/Fri, 31 Oct 2025 00:00:00 +0000https://docs.matildes.dev/linux/admin/antivirus-boot-issues/<h2 id="understanding-antivirus-boot-interference">Understanding Antivirus Boot Interference<a class="td-heading-self-link" href="#understanding-antivirus-boot-interference" aria-label="Heading self-link"></a></h2> <p>Antivirus software, while crucial for system security, can sometimes interfere with the Linux boot process. This occurs when security modules become overly aggressive during system initialization, potentially causing boot failures, readonly filesystem mounts, or service startup issues.</p> <h3 id="common-symptoms">Common Symptoms<a class="td-heading-self-link" href="#common-symptoms" aria-label="Heading self-link"></a></h3> <ul> <li>System fails to boot completely</li> <li>Filesystem mounts as readonly (<code>ro</code>) instead of read-write (<code>rw</code>)</li> <li>Critical services fail to start</li> <li>Boot hangs at specific points</li> <li>SELinux/AppArmor policy violations during boot</li> </ul> <hr> <h2 id="filesystem-readonly-issues">Filesystem Readonly Issues<a class="td-heading-self-link" href="#filesystem-readonly-issues" aria-label="Heading self-link"></a></h2> <p>One of the most common problems occurs when antivirus software causes the root filesystem to mount readonly. This prevents the system from writing critical boot files and can halt the initialization process.</p>https://docs.matildes.dev/azure/vm/serial-console/Tue, 14 Oct 2025 00:00:00 +0000https://docs.matildes.dev/azure/vm/serial-console/<p>Azure Serial Console is invaluable when SSH or the network is unavailable. This guide shows how to configure Linux distributions to expose the GRUB menu and kernel boot logs over the VM’s serial port on Azure, fixing cases where migrated images or some distros don’t show GRUB or any serial output.</p> <blockquote> <p>For proactive setup, follow Microsoft’s official guide: <a href="https://learn.microsoft.com/en-us/troubleshoot/azure/virtual-machines/linux/serial-console-grub-proactive-configuration">Proactive GRUB and serial console configuration for Linux on Azure</a>. This article is intended for cases where you’re facing issues getting serial console and the GRUB menu to display and need troubleshooting-oriented configuration.</p>