diff --git a/src/scripts/logtail.sh b/src/scripts/logtail.sh
index 15c3ada5c..5a1cf8110 100755
--- a/src/scripts/logtail.sh
+++ b/src/scripts/logtail.sh
@@ -2,6 +2,11 @@
 
 set -eu
 
+if [[ "${1:-}" == "--check" ]]; then
+    echo "OK"
+    exit 0
+fi
+
 args=$(getopt -o "" -l "follow,lines:" -n "$0" -- "$@")
 eval set -- "${args}"
 
diff --git a/src/test/check-install b/src/test/check-install
index 31bf45ede..362a661d7 100755
--- a/src/test/check-install
+++ b/src/test/check-install
@@ -2,31 +2,19 @@
 
 set -eu
 
-readonly SOURCE_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
-readonly TEST_IMAGE="cloudron/test:25.2.0"
+readonly source_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
+readonly sudo_scripts_dir="${source_dir}/src/scripts"
+
+if [[ ! -f /usr/bin/node ]]; then
+    echo "node is not in root user's environment. '/usr/bin/env node' will not work"
+    exit 1
+fi
 
 # reset sudo timestamp to avoid wrong success
 sudo -k || sudo --reset-timestamp
 
 # checks if all scripts are sudo access
-scripts=("${SOURCE_DIR}/src/scripts/clearvolume.sh" \
-         "${SOURCE_DIR}/src/scripts/mvvolume.sh" \
-         "${SOURCE_DIR}/src/scripts/mkdirvolume.sh" \
-         "${SOURCE_DIR}/src/scripts/rmaddondir.sh" \
-         "${SOURCE_DIR}/src/scripts/reboot.sh" \
-         "${SOURCE_DIR}/src/scripts/restart.sh" \
-         "${SOURCE_DIR}/src/scripts/restartservice.sh" \
-         "${SOURCE_DIR}/src/scripts/update.sh" \
-         "${SOURCE_DIR}/src/scripts/du.sh" \
-         "${SOURCE_DIR}/src/scripts/remotesupport.sh" \
-         "${SOURCE_DIR}/src/scripts/starttask.sh" \
-         "${SOURCE_DIR}/src/scripts/stoptask.sh" \
-         "${SOURCE_DIR}/src/scripts/rmmailbox.sh" \
-         "${SOURCE_DIR}/src/scripts/setblocklist.sh" \
-         "${SOURCE_DIR}/src/scripts/setldapallowlist.sh" \
-         "${SOURCE_DIR}/src/scripts/hdparm.sh" \
-         "${SOURCE_DIR}/src/scripts/configurelogrotate.sh")
-
+readarray -d '' scripts < <(find ${sudo_scripts_dir} -type f -print0)
 declare -a missing_scripts=()
 for script in "${scripts[@]}"; do
     if [[ $(sudo -n "${script}" --check 2>/dev/null) != "OK" ]]; then
@@ -35,7 +23,7 @@ for script in "${scripts[@]}"; do
 done
 
 if [[ ${#missing_scripts[@]} -gt 0 ]]; then
-    echo "The following script(s) have no sudo access: ${missing_scripts[*]} . Try 'sudo -n ${script[0]} --check'"
+    echo "The following script(s) have no sudo access: ${missing_scripts[*]} . Try 'sudo -n ${missing_scripts[0]} --check'"
     echo -e "\nYou have to add the lines below to /etc/sudoers.d/yellowtent\n\n"
  
     for missing_script in "${missing_scripts[@]}"; do
@@ -47,7 +35,20 @@ if [[ ${#missing_scripts[@]} -gt 0 ]]; then
     exit 1
 fi
 
-images=$(node -e "const i = require('${SOURCE_DIR}/src/infra_version.js'); console.log(Object.keys(i.images).map(x => i.images[x]).join(' '));")
+setenv_scripts=(starttask.sh backupupload.js)
+for script in "${setenv_scripts[@]}"; do
+    if ! grep -q ":SETENV:.*${script}" "/etc/sudoers.d/yellowtent"; then
+        echo "SETENV missing for ${script} in /etc/sudoers.d/yellowtent"
+        exit 1
+    fi
+done
+
+if ! grep -q "backupupload.js closefrom_override" "/etc/sudoers.d/yellowtent"; then
+    echo "backupupload.js needs closefrom_override in /etc/sudoers.d/yellowtent"
+    exit 1
+fi
+
+images=$(node -e "const i = require('${source_dir}/src/infra_version.js'); console.log(Object.keys(i.images).map(x => i.images[x]).join(' '));")
 
 for image in ${images}; do
     if ! docker inspect "${image}" >/dev/null 2>/dev/null; then