Welcome to Larvitz Blog! I’m Christian, a Senior Consultant by day and FreeBSD enthusiast by night, with over 20 years in enterprise IT. Here I write about FreeBSD jails, PF firewalling, self-hosting, Linux system administration, and anything that’s cleanly engineered. Most articles are hands-on guides born from running my own infrastructure, from dual-stack networking and Ansible automation to hosting a Mastodon instance on FreeBSD.

Have a question or want to discuss something? Find me on the Fediverse at @Larvitz@burningboard.net. I’m always happy to chat!

#grub Articles

Sat 31 October 2026
Linux

Linux Foundationals: From Silicon to Userspace - The Boot and Init Chain

The first article in the Linux Foundationals series. It traces a Fedora system from the UEFI handoff through shim and Secure Boot, MOK enrollment with mokutil, GRUB2 and Boot Loader Specification entries, the dracut initramfs and switch_root, all the way to systemd as PID 1. Then it covers units, dependencies versus ordering, targets, and how to measure and fix a slow boot with systemd-analyze.