From e81c509208486e94e411a3a14d5d2956917c0eb6 Mon Sep 17 00:00:00 2001
From: Kroese <kroese@users.noreply.github.com>
Date: Fri, 17 Jul 2026 02:11:38 +0200
Subject: [PATCH] feat: Check RENDERNODE permissions (#1279)

---
 src/display.sh | 4 ++++
 src/network.sh | 4 +++-
 src/reset.sh   | 3 +--
 3 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/display.sh b/src/display.sh
index d254146..7cea288 100644
--- a/src/display.sh
+++ b/src/display.sh
@@ -48,6 +48,10 @@ if [ ! -c "$RENDERNODE" ]; then
   fi
 fi
 
+if [ ! -c "$RENDERNODE" ] || [ ! -r "$RENDERNODE" ] || [ ! -w "$RENDERNODE" ]; then
+  warn "render device '$RENDERNODE' is unavailable or inaccessible."
+fi
+
 addPackage "xserver-xorg-video-intel" "Intel GPU drivers"
 addPackage "qemu-system-modules-opengl" "OpenGL module"
 
diff --git a/src/network.sh b/src/network.sh
index c47abe1..9fc0082 100644
--- a/src/network.sh
+++ b/src/network.sh
@@ -1861,7 +1861,9 @@ showHostInfo() {
   [ ! -f "$file" ] && file="/etc/resolv.conf"
 
   if [ -f "$file" ]; then
-    nameservers=$(grep '^nameserver ' "$file" | sed 's/^nameserver //' | paste -sd ',' | sed 's/,/, /g')
+    nameservers=$(awk '$1 == "nameserver" { print $2 }' "$file" |
+      paste -sd ',' |
+      sed 's/,/, /g' || true)
   fi
 
   [ -z "$nameservers" ] && nameservers="(none)"
diff --git a/src/reset.sh b/src/reset.sh
index cdf6359..4157f8a 100644
--- a/src/reset.sh
+++ b/src/reset.sh
@@ -320,9 +320,8 @@ FOOTER2="<a href='$SUPPORT'>$SUPPORT</a>"
 SOCKETS=1
 CPU=$(cpu)
 SYS=$(uname -r)
-KERNEL=$(echo "$SYS" | cut -b 1)
-MINOR=$(echo "$SYS" | cut -d '.' -f2)
 ARCH=$(dpkg --print-architecture)
+IFS=. read -r KERNEL MINOR _ <<< "$SYS"
 CORES=$(grep -c '^processor' /proc/cpuinfo)
 
 if grep -qi "socket(s)" <<< "$(lscpu)"; then