PostmarketOS Bootc

Experiment to see if Bootc could work on PostmarketOS.

Building

This requires an already setup postmarketos environment.

Firstly, we need to generate a postmarketos image.

1. Download and install pmbootstrap with these instructions.
2. Run pmbootstrap init and use all the defaults, except when it asks about systemd set it to always. I recommend either phosh or gnome-mobile for the DE when asked.
3. Run pmboostrap install
4. Go to a repo directory, create a pm-exports folder, cd into it, and run pmbootstrap export .
   1. You should now have a folder filled with symlinks, but only initramfs, qemu-amd64.img, and vmlinuz-stable are valid.
5. Move up to the parent directory and run the following to create the docker image.
   1. guestfish --ro -a ./pm-exports/qemu-amd64.img -m /dev/sda2:/ tar-out / - | sudo podman import - postmarketos

In order to get a running pmos-bootc system you can run the following steps:

just build-containerfile # This will build the containerfile and all the dependencies you need
just generate-bootable-image # Generates a bootable image for you using bootc!

Then you can run the bootable.img as your boot disk in your preferred hypervisor.

Fixes

• mount /dev/vda2 /sysroot/boot - You need this to get bootc status and other stuff working (/dev/vda2 is your ESP)