Ryan Castellucci (they/them) 🎃 :nonbinary_flag: on Nostr: The rough plan, which will probably be immediately amended upon contact with ...

The rough plan, which will probably be immediately amended upon contact with reality:<li>Hook up the Pi with a TTL serial cable, Ethernet, and power it through a relay board.</li><li>Build a minimal U-Boot that chainloads a full U-Boot over serial, flash that to the SD card</li><li>Build a full U-Boot (with my patches) that sets up netconsole and loads a signed FIT image with kernel, initramfs, and maybe devicetree from my TFTP server</li><li>Cross-compile a Linux kernel and modules for the Pi</li><li>Statically (musl) cross-compile BusyBox (with patches) for the Pi </li><li>Statically (musl) cross-compile Dropbear for the Pi</li><li>Statically (musl) cross-compile rsync (and whatever dependencies it has) for the Pi</li><li>Statically (musl) cross-compile gpsd for the Pi</li><li>Statically (musl) cross-compile chrony for the Pi</li><li>Statically (musl) cross-compile my temperature logger for the Pi</li><li>Script up something to build the initramfs</li><li>Set up runit as the init system and script an overlayfs setup</li><li>Iterate until it works properly.</li>

I've done most of this before, and already have configs for several parts, so it *should* be relatively smooth. In theory.

#linux #embedded #embedded_systems #embeddedsystems #homelab