https://vmlinuz.pl/en/tags/livepatch/ Recent content in Livepatch on vmlinuz Hugo en 2025-2026 vmlinuz.pl Wed, 15 Jul 2026 10:00:00 +0100 https://vmlinuz.pl/en/posts/live-patching/ Wed, 15 Jul 2026 10:00:00 +0100 https://vmlinuz.pl/en/posts/live-patching/ <p>Updating a kernel usually means a patch plus a reboot. On a laptop that is nothing, but on a database server, a host packing a hundred VMs, or a cluster expected to hold its uptime, every reboot is a maintenance window, a queue, and a risk. Live patching solves it differently: it applies the fix to a running kernel, without shutting anything down and without losing any process. Here is how it works underneath and how you actually do it.</p>