How to Build a Custom Minimal Ubuntu 24.04 Image for Raspberry Pi 3B Posted on February 12, 2026February 12, 2026 By Jonathan No Comments on How to Build a Custom Minimal Ubuntu 24.04 Image for Raspberry Pi 3B Create a production-ready, ultra-lightweight (400MB) Ubuntu 24.04 image for Raspberry Pi 3B. Includes automated script, ZRAM, and BCM43430 WiFi fixes. Tutorials