From 119b747dda84a60f3f3d04b5de121df7330fb93a Mon Sep 17 00:00:00 2001
From: Justin Oros <JustinOros@gmail.com>
Date: Thu, 16 Apr 2026 13:11:57 -0700
Subject: [PATCH] fix BACKUP_FILE unbound variable and add ping to dep checks

---
 setup-network.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/setup-network.sh b/setup-network.sh
index 70543f3..3829fab 100755
--- a/setup-network.sh
+++ b/setup-network.sh
@@ -26,7 +26,7 @@ check_deps() {
 
 [ "$(id -u)" -eq 0 ] || die "Run as root"
 
-check_deps ip netplan systemctl
+check_deps ip netplan systemctl ping
 
 header "TinyBoard Network Setup"
 
@@ -118,6 +118,7 @@ if $IS_WIFI; then
 fi
 
 header "Writing Netplan Config"
+BACKUP_FILE=""
 if [ -f "$NETPLAN_FILE" ]; then
     BACKUP_FILE="/root/$(basename "${NETPLAN_FILE}").bak"
     cp "$NETPLAN_FILE" "$BACKUP_FILE"