First successful build 2026-07-06: image kernel-7.0.9-ogc3.2.fc44, 5 GB installer ISO via bootc-image-builder. Records the docker-specific workarounds: native dockerd (not Docker Desktop), skopeo copy into containers-storage, terra GPG key mount, --rootfs btrfs. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
126 lines
5.1 KiB
Markdown
126 lines
5.1 KiB
Markdown
# BC-250 Console — local build → ISO
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Custom recipe: `recipes/bc250-console-gnome.yml` (Bazzite GNOME + cyan-skillfish
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governor + SSH/RDP remote admin + BC-250 ttm kargs). Build path is **local**
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(no CI, no registry push, no cosign needed).
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Two working paths: **podman** (BlueBuild's native path, use on a Fedora box)
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or **docker** (what was actually used for the first successful build,
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2026-07-06, on Ubuntu 24.04 with a native dockerd). The docker path needs a
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few workarounds, all captured below.
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## Path A: podman (Fedora/bootc box)
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```bash
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bluebuild build ./recipes/bc250-console-gnome.yml
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mkdir -p output
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sudo podman run --rm -it --privileged \
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--security-opt label=type:unconfined_t \
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-v ./output:/output \
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-v /var/lib/containers/storage:/var/lib/containers/storage \
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quay.io/centos-bootc/bootc-image-builder:latest \
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--type iso --rootfs btrfs \
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localhost/bc250-console-gnome:latest
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```
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Note: mount the image's GPG keys as in Path A step 4 if depsolve fails on
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`terra-mesa` (see below) — the same failure mode applies under podman.
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## Path B: docker (verified working)
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**Use a native dockerd, not Docker Desktop.** Under Docker Desktop's VM,
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podman-in-docker cannot exec anything ("Invalid argument") and bind mounts
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outside the file-sharing allowlist are denied. A stock `docker-ce` daemon on
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the host kernel works. (Plain `docker` may point at the Desktop context —
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force the native daemon with `docker -H unix:///var/run/docker.sock` or
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`docker context use default`.)
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```bash
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# 1. Generate the Containerfile from the recipe (note: 'bluebuild' must be
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# given explicitly — the image entrypoint is dumb-init)
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docker run --rm -v "$PWD":/bluebuild -w /bluebuild \
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ghcr.io/blue-build/cli:latest \
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bluebuild generate -o Containerfile ./recipes/bc250-console-gnome.yml
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# 2. Build the image
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docker buildx build -f Containerfile -t localhost/bc250-console-gnome:latest .
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# 3. bootc-image-builder reads podman containers-storage, not the docker
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# store — copy the image over with skopeo via a throwaway local registry:
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docker network create bibnet
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docker run -d --name registry --network bibnet -p 127.0.0.1:5000:5000 registry:2
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docker tag localhost/bc250-console-gnome:latest localhost:5000/bc250-console-gnome:latest
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docker push localhost:5000/bc250-console-gnome:latest
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docker volume create bib-storage
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docker run --rm --privileged --network host \
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-v bib-storage:/var/lib/containers/storage \
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quay.io/skopeo/stable:latest \
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copy --src-tls-verify=false \
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docker://127.0.0.1:5000/bc250-console-gnome:latest \
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containers-storage:localhost/bc250-console-gnome:latest
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# 4. Bazzite's terra repos reference GPG keys by file:// path; the depsolve
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# runs inside the bib container, so those keys must be mounted in:
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cid=$(docker create localhost/bc250-console-gnome:latest true)
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docker cp "$cid":/etc/pki/rpm-gpg ./rpm-gpg-keys
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docker rm "$cid"
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# 5. Build the ISO (--rootfs required: the image sets no root-fs-type)
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mkdir -p iso-output
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docker run --rm --privileged --security-opt label=type:unconfined_t \
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-v "$PWD"/iso-output:/output \
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-v "$PWD"/rpm-gpg-keys:/etc/pki/rpm-gpg:ro \
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-v bib-storage:/var/lib/containers/storage \
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quay.io/centos-bootc/bootc-image-builder:latest \
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--type iso --rootfs btrfs \
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localhost/bc250-console-gnome:latest
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```
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ISO lands at `iso-output/bootiso/install.iso` (~5 GB), owned by root — fix
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with `docker run --rm -v "$PWD"/iso-output:/o alpine chown -R 1000:1000 /o`.
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### Kernel sanity check (before flashing)
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Avoid kernels 6.15.0–6.15.6 and 6.17.8–6.17.10; prefer 6.18.x LTS / 6.17.11+.
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```bash
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docker run --rm localhost/bc250-console-gnome:latest rpm -q kernel
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```
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First successful build shipped `kernel-7.0.9-ogc3.2.fc44` — fine.
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## Smoke test + install
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1. **VM test**: boot the ISO in a VM (KVM works headless:
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`qemu-system-x86_64 -enable-kvm -m 8192 -drive file=vm.qcow2,if=virtio -cdrom <iso> -boot once=d`).
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The embedded kickstart installs unattended. Validates composition and the
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installer only — not the BC-250 GPU/governor/Mesa path.
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2. Flash to USB (Fedora Media Writer / Impression / `dd`), install on the
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board. Black screen at install → "Install in Basic Graphics Mode".
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3. First boot, in the child's desktop session: run `bc250-remote-setup`,
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log into Steam, set Steam Family View, `sudo tailscale up` if using it.
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## On-hardware validation (board, not VM)
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```bash
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vulkaninfo | grep deviceName # RADV GFX1013, NOT llvmpipe
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systemctl status cyan-skillfish-governor-smu # active
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cat /sys/class/drm/card0/device/pp_dpm_sclk # scaling present (may be card1)
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sensors # sane temps; watch backplate airflow
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cat /proc/cmdline | tr ' ' '\n' | grep ttm # ttm.pages_limit / page_pool_size
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```
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Then a real game for 30+ minutes for thermal/power stability.
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## Not baked into the image (per-board/per-user)
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Modded BIOS + BIOS settings (512 MB dynamic VRAM, IOMMU off, auto power-on),
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RDP password/TLS cert, Steam login, Tailscale auth.
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## Security
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- SSH/RDP LAN- or tailnet-only. Never port-forward 22/3389.
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- If this ever moves to a registry (Gitea) for OTA updates: generate your own
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cosign keypair, re-add the `signing` module, and never reuse upstream's key.
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