- Remove 20-wifi.yaml netplan block (Bug 1): causes netplan to spawn its own wpa_supplicant instance, which claims ctrl_iface and blocks wpa_supplicant@wlan0.service. The per-interface systemd service is the correct approach.
- Add cleanup line to remove any pre-existing 20-wifi.yaml from the Armbian image.
- Patch 10-dhcp-all-interfaces.yaml to suppress default route on ethernet (Bug 2): without this, ethernet DHCP default route metric 100 beats WiFi metric 1024, routing internet traffic to ethernet which has no upstream. Causes Tailscale and firstboot to fail.
- Force IPv4 resolution in Tailscale curl (Bug 3): some homelab/ISP networks lack IPv6 internet routes. IPv6 DNS resolution for tailscale.com causes immediate curl failure on first boot.
- Remove wpa_supplicant@wlan0.service enablement: Netplan spawns its own
wpa_supplicant instance, enabling the @wlan0 unit creates a second one
that fights for the socket, causing WiFi instability and SSH drops
- Write /etc/nftables.conf to card at flash time: Armbian bookworm default
nftables policy drops all input; SSH was unreachable despite sshd running.
Ruleset allows established, loopback, ICMP, and TCP/22 only
Fixes DevTrack #317 and #295
- Remove generic wpa_supplicant.service symlink when wpa_supplicant@wlan0 is enabled — both services fight over wlan0 causing WiFi instability and SSH drops
- Add udev rule to disable WiFi power saving (aw859a drops connections under load with power save on)
- Drop set -e from firstboot script so a failing step does not kill the whole run
- Guard setup.sh call — skip gracefully if not present (dev/test scenario)
Fixes#295 and #296
Armbian minimal uses systemd-networkd+wpa_supplicant via Netplan, not NM.
Write Netplan YAML, wpa_supplicant-wlan0.conf, and networkd .network file.
Enable wpa_supplicant@wlan0.service via symlink if template exists.
WiFi, SSH keys, root password, firstboot service were all being written to
the FAT32 boot partition (p1) instead of the ext4 rootfs (p2). Detect the
ext4 partition by filesystem type and mount that as MOUNT_POINT.
mktemp creates the file before ssh-keygen runs — keygen sees it exists
and prompts. Switch to mktemp -d so keygen writes a fresh file.
When run via sudo SUDO_USER is set but HOME=/root. Resolve the real
home via getent so the key lands in the operator's ~/.ssh, not root's.
echo calls in summary/final sections were missing -e flag so ANSI
escape codes printed literally instead of rendering.
Infisical SSH key storage was targeting a non-existent 'bigbrother'
folder, silently failing to store the private key. Removed folder
argument so keys store at root where creds CLI can retrieve them.
Matrix doesn't use a simple webhook URL — needs homeserver, room ID,
and bot token separately. Uses PUT /_matrix/client/v3/rooms/.../send
with Bearer token auth. Room ID is bash-encoded (! → %21, : → %3A)
to avoid Python dependency pre-setup. Also adds ntfy and plain
webhook as options under a typed alerter menu.
Device ID is now a MAC-format hex string (12 chars) using the same
OUI as the randomly selected device profile. If the device gets an
Amazon OUI for its MAC, the device ID starts with fc65de. Hostname,
MAC, and device ID all point to the same vendor — no inconsistency
for anyone watching the network.
bb- prefix is a tool fingerprint — visible in Infisical key names,
alerter payloads, and config files on the device. Default is now
a plain 10-char hex string with no identifying prefix.
Tailscale handles NAT traversal automatically via DERP relay — more
reliable than WireGuard for devices landing on unknown networks.
Add reminder to use reusable non-expiring keys for long-term drops.
Blind drops need some way to locate the device when no VPN is selected.
Alerter now reports public IP (via ipify) with fallback to local IP,
plus hostname — gives enough info to SSH directly on same-network drops.
Generates a dedicated tunnel keypair during setup, prints public key
for operator to pre-stage on server, writes private key to SD card.
On first boot: installs autossh, writes bb-tunnel.service with
correct RemoteForward and reconnect settings. Zero network traffic
until operator initiates connection through the tunnel port.
- Add prompt_default() helper: shows defaults, accepts Enter to use them
- WiFi: default=n (skip), keeps passphrase prompt loop
- Root password: auto-generate with openssl, show in summary if used, operator can override
- SSH key: default=1 (generate new)
- Device ID: auto-generate bb-<8-char-uuid>
- Boot mode: default=1 (passive)
- VPN: default=1 (none)
- Hostname: NEW section with auto-generated node-<6-char-uuid> default
- Alerter: default=n (disabled)
- Download: use curl -L (no -f), verify file exists and >50MB
- Config summary: show hostname, mask password (show auto-generated clearly)
- Apply config: write BB_HOSTNAME to /etc/hostname and /etc/hosts
- No eval with user input: use printf -v for variable assignment
Cobra