Bespoke BitBake Builder Builder

Requirements

• A modern systemd-based Linux system (I built this on Ubuntu 23.10.)
• A recent mkosi (I used v20.2; v14 is too old.)

Building

From this directory, run:

# Build Debian 11 image for Yocto 4.0
mkosi --image=kirkstone build
sudo cp -d -t /var/lib/machines mkosi.output/bitbake-debian-11-kirkstone*

# Build Debian 12 image for Yocto 4.2
mkosi --image=mickledore build
sudo cp -d -t /var/lib/machines mkosi.output/bitbake-debian-12-mickledore*

Rebuilding

To remove an existing image in mkosi.output before building, run mkosi -f build.

A copy of the OS image is cached after package installation but before build scripts are run. To also remove this cache before building, run mkosi -ff build.

Downloaded distribution packages are also cached. To also remove this cache before building, run mkosi -fff build.

Future work

• Figure out why using systemd-nspawn --machine=bitbake-debian-12-mickledore results in the error "No machine for image: bitbake-debian-12-mickledore".
• Make a mkosi.nspawn file containing the systemd-nspawn options that aren't user- or project-specific.
• Make this a bootable image that can be managed by systemd-machined. Add instructions for how to use the image via machinectl rather than systemd-nspawn.