auto hostname

autohostname.sh

@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+
+# Copy this along with .not_logged_in_yet to armbian root dir, then run after successful login
+
+# Refresh: extract MAC address of wlan0
+MAC=$(netplan status -f json | jq -r '.wlan0.macaddress')
+
+# Check that we actually got a MAC address
+if [[ -z "$MAC" ]]; then
+  echo "Error: Could not retrieve MAC address from netplan." >&2
+  exit 1
+fi
+
+echo "Detected MAC address: $MAC"
+
+# Assign cheese hostname based on MAC address
+case "$MAC" in
+38:9c:80:46:26:c8) # ← Replace with your first real MAC
+  HOSTNAME="brie"
+  ;;
+68:f8:ea:22:e1:3d) # ← Replace with your second real MAC
+  HOSTNAME="gouda"
+  ;;
+99:88:77:66:55:44) # ← Replace with your third real MAC
+  HOSTNAME="camembert"
+  ;;
+*)
+  echo "Unknown MAC address: $MAC – hostname not changed." >&2
+  exit 1
+  ;;
+esac
+
+echo "Setting hostname to: $HOSTNAME"
+sudo hostnamectl set-hostname "$HOSTNAME"
+
+# Optional: also update /etc/hostname (hostnamectl usually does this, but to be safe)
+echo "$HOSTNAME" | sudo tee /etc/hostname >/dev/null
+
+echo "Hostname changed. Reboot or start a new shell to see the change."