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Headless firmware rootfs and DHCP renewal through dhcpcd - #80
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The slim Buildroot image makes dhcpcd the only DHCP client. Renewing with a one-shot udhcpc put a second client on eth0; ask the running dhcpcd to rebind instead, and keep udhcpc for older images. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
buildroot 0004 replaces the RK3588 defconfig with a headless one: MPP, RGA, the GStreamer plugins the app loads, ALSA, chrony, dhcpcd and dropbear. Weston, Chromium, Mali, NPU, ISP, rockit, PulseAudio, Bluetooth, the update engine, uvc-gadget, benchmarks and fonts go; nothing in the app or its boot scripts calls them. device/friendlyelec 0002 adds a last rustkvm-slim overlay step that deletes what device/rockchip installs unconditionally (/usr/local/bin tools, fonts, demo media) and drops the PulseAudio and usbdevice overlays. build-firmware.sh now starts the Buildroot output over when the defconfig changes; mk-buildroot.sh reuses an existing .config and Buildroot never removes files of disabled packages, so neither this change nor a new root password took effect on an existing SDK tree. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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The app reads /etc/rustkvm-version, the firmware only wrote /etc/rustkvm-release, so system_version came back null. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Fold the headless defconfig into buildroot 0002 against the pinned SDK and remove what only served FriendlyElec's desktop/evaluation config: the old full defconfig and its fragment edits (update engine, Opus in the PulseAudio fragment, dropbear client in network.config), the uvc-gadget build fixes, the rkupdate legal-info fix and the rockit link fix. None of those packages are built any more. The resulting defconfig is byte-identical to the one on the verified image. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
…ment two unfixable advisories New advisories since dev last went green: RUSTSEC-2026-0386 (tokio), -0382 and -0381 (distrusted emSign roots/intermediates) are fixed by the updates. -0382 also hits the 0.102 copy that rumqttc 0.25.1 (the latest) pins, and -0387 (crypto-bigint 0.5 timing) comes through webrtc 0.17.2's dtls; neither has a compatible fixed release, so both are ignored with their reach written down, like the earlier rumqttc entries. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Requested by 4c
Summary
Before: the firmware rootfs was FriendlyElec's full Buildroot desktop/evaluation set (Weston, Chromium, Mali, NPU, camera ISP, ffmpeg, PulseAudio, Bluetooth, benchmarks, CJK fonts). rootfs.img was 942 MB, Weston alone held about 107 MB of RAM, and the app was serving its web UI about 19 s after power-on. "Renew DHCP lease" started a second DHCP client next to dhcpcd, and Settings → About showed no system version.
After: the rootfs keeps only what
rustkvm_appand its boot scripts use. Measured on a flashed unit: rootfs.img is 216 MB (the Buildroot part is 31 MB), userspace outside the app takes about 15 MB of RAM, and the web UI is up about 9 s after power-on. 4K60 video, audio, HID, USB, virtual media, both NICs, chrony and the web terminal all work. Lease renewal goes through dhcpcd, and the firmware writes/etc/rustkvm-version.How
os/rk3588/patches/buildroot/0002: the only RK3588 defconfig is now headless. Its package list comes from the app's process maps on a running unit and from every external command the app and the kept init scripts run. The old full defconfig is gone, along with the patches that only served it: the fragment edits, the uvc-gadget build fixes, the rkupdate legal-info fix and the rockit link fix (external/).gst.shkeeps RGA in videoconvert.os/rk3588/patches/device/friendlyelec/0002:rustkvm-slimruns last and removes the prebuilt tools in/usr/local/bin, the fonts, the demo media and the PulseAudio/usbdevice leftovers.scripts/build-firmware.sh: rebuilds the Buildroot output from scratch whenever the defconfig hash changes. An existing tree used to keep its old.configand the files of dropped packages, which also silently ignored a new root password. It now also writes/etc/rustkvm-version.app/src/api/handlers/network.rs: DHCP renewal asks the running dhcpcd to rebind, with udhcpc as the fallback.Cargo.lock/deny.toml: fixes for the advisories published since dev last went green (tokio, rustls-webpki, webpki-roots). Two have no compatible fixed release, rumqttc's pinned rustls-webpki 0.102 and crypto-bigint 0.5 under webrtc's dtls; both are ignored with a written rationale, like the existing rumqttc entries.Testing
cargo +nightly fmt --allcargo +nightly clippy --workspace --release --all-targets -- -D warnings(CI)cargo +nightly test --workspace(CI)Checklist
#[allow(...)]suppressions and no newunwrap()/expect()in production pathsrkvm-proto(not touched)os/rk3588/README.md🤖 Generated with Claude Code