Remove obsolete audio and buzzer control documentation files, including detailed guides and HTML interfaces, to streamline the repository and eliminate redundancy. This cleanup enhances maintainability and focuses on essential resources for the reTerminal DM4 audio and buzzer functionalities.

2026-02-20 15:39:39 +02:00
parent 9656771d5a
commit 58d9144752
101 changed files with 80 additions and 193 deletions
--- a/emmc-provisioning/scripts/setup-network-boot-on-lxc.sh
+++ b/emmc-provisioning/scripts/setup-network-boot-on-lxc.sh
@@ -0,0 +1,104 @@
+#!/usr/bin/env bash
+# Setup network boot on the provisioning LXC: DHCP + TFTP on eth1, NAT so LAN uses eth0 for internet.
+# Run inside the LXC (as root), or from your machine: ./setup-network-boot-on-lxc.sh root@10.130.60.141
+# When run with ssh target, rsyncs lxc/ and runs this script inside the container.
+
+set -e
+TARGET="${1:-}"
+
+if [[ -n "$TARGET" ]]; then
+  # Run remotely: sync lxc/ and script, then execute inside LXC
+  SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+  REPO_DIR="$(dirname "$SCRIPT_DIR")"
+  echo "Syncing lxc config and script to $TARGET ..."
+  rsync -a "$REPO_DIR/lxc/" "$TARGET:/tmp/cm4-network-boot-lxc/" --exclude='.git'
+  scp "$SCRIPT_DIR/setup-network-boot-on-lxc.sh" "$TARGET:/tmp/cm4-network-boot-lxc/setup.sh"
+  ssh "$TARGET" "bash /tmp/cm4-network-boot-lxc/setup.sh"
+  echo "Done."
+  exit 0
+fi
+
+# --- Running inside the LXC from here ---
+echo "Configuring network boot (DHCP + TFTP on eth1, NAT via eth0) ..."
+
+# 1) Install dnsmasq
+if ! command -v dnsmasq >/dev/null 2>&1; then
+  apt-get update -qq && DEBIAN_FRONTEND=noninteractive apt-get install -y -qq dnsmasq
+fi
+
+# 2) dnsmasq config for eth1 only (DHCP + TFTP)
+mkdir -p /etc/dnsmasq.d
+cat > /etc/dnsmasq.d/network-boot.conf << 'DNSMASQ'
+# DHCP + TFTP on eth1 only (provisioning LAN)
+interface=eth1
+bind-interfaces
+dhcp-range=10.20.50.100,10.20.50.200,12h
+enable-tftp
+tftp-root=/srv/tftpboot
+dhcp-option=66,10.20.50.1
+dhcp-option=67,start4cd.elf
+log-dhcp
+log-queries
+port=0
+DNSMASQ
+
+# 3) TFTP root: fetch Raspberry Pi 4 boot files from GitHub if missing
+mkdir -p /srv/tftpboot
+if [[ ! -f /srv/tftpboot/start4cd.elf ]]; then
+  echo "Fetching Raspberry Pi firmware boot files from GitHub ..."
+  if ! command -v curl >/dev/null 2>&1 && ! command -v wget >/dev/null 2>&1; then
+    apt-get update -qq && DEBIAN_FRONTEND=noninteractive apt-get install -y -qq curl
+  fi
+  tmpdir=$(mktemp -d)
+  trap "rm -rf $tmpdir" EXIT
+  if command -v curl >/dev/null 2>&1; then
+    curl -sL "https://github.com/raspberrypi/firmware/archive/refs/heads/master.tar.gz" -o "$tmpdir/firmware.tar.gz"
+  else
+    wget -q -O "$tmpdir/firmware.tar.gz" "https://github.com/raspberrypi/firmware/archive/refs/heads/master.tar.gz"
+  fi
+  tar xzf "$tmpdir/firmware.tar.gz" -C "$tmpdir"
+  cp -a "$tmpdir/firmware-master/boot/." /srv/tftpboot/
+  rm -rf "$tmpdir"
+  echo "Copied RPi boot files to /srv/tftpboot"
+else
+  echo "TFTP root already has boot files (start4cd.elf present), skipping fetch."
+fi
+
+# 4) IP forwarding (LAN clients use WAN)
+echo 'net.ipv4.ip_forward=1' > /etc/sysctl.d/99-cm4-network-boot.conf
+sysctl -p /etc/sysctl.d/99-cm4-network-boot.conf 2>/dev/null || sysctl -w net.ipv4.ip_forward=1
+
+# 5) NAT: 10.20.50.0/24 -> eth0 (masquerade)
+if command -v nft >/dev/null 2>&1; then
+  mkdir -p /etc/nftables.d
+  cat > /etc/nftables.d/nat-lan.conf << 'NFT'
+table ip nat {
+	chain postrouting {
+		type nat hook postrouting priority srcnat; policy accept;
+		ip saddr 10.20.50.0/24 oifname "eth0" masquerade
+	}
+}
+NFT
+  if ! nft list table ip nat 2>/dev/null | grep -q postrouting; then
+    nft -f /etc/nftables.d/nat-lan.conf
+  fi
+  # Ensure main config includes our drop-in (Debian)
+  if [[ -f /etc/nftables.conf ]] && ! grep -q 'nftables.d/nat-lan' /etc/nftables.conf 2>/dev/null; then
+    echo 'include "/etc/nftables.d/nat-lan.conf"' >> /etc/nftables.conf
+  fi
+  echo "NAT rule added (nftables) and saved to /etc/nftables.d/nat-lan.conf"
+else
+  # Fallback iptables
+  iptables -t nat -C POSTROUTING -s 10.20.50.0/24 -o eth0 -j MASQUERADE 2>/dev/null || \
+    iptables -t nat -A POSTROUTING -s 10.20.50.0/24 -o eth0 -j MASQUERADE
+  echo "NAT rule added (iptables)."
+fi
+
+# 6) Enable and start dnsmasq
+systemctl enable dnsmasq
+systemctl restart dnsmasq
+
+echo "Network boot setup done."
+echo "  - DHCP + TFTP on eth1 (10.20.50.1), range 10.20.50.100-200"
+echo "  - NAT: 10.20.50.0/24 -> eth0 (internet)"
+echo "  - TFTP root: /srv/tftpboot (RPi boot files from GitHub)"