diff --git a/lib/functions.sh b/lib/functions.sh
index ecf5c64..997d9e1 100644
--- a/lib/functions.sh
+++ b/lib/functions.sh
@@ -90,6 +90,13 @@ function disable_trace() {
     trap - ERR
 }
 
+function disable_all_signals {
+    trap - ERR
+    trap - HUP
+    trap - INT
+    trap - TERM
+}
+
 function prepare_nftables() {
     local PREFIX="miaou:nftables"
 
diff --git a/lib/install.sh b/lib/install.sh
index 9601058..d53697a 100755
--- a/lib/install.sh
+++ b/lib/install.sh
@@ -30,7 +30,9 @@ function prepare_lxd {
 
         realcommand="$MIAOU_BASEDIR/lib/install.sh"
         sg "$NEW_GROUP" -c "EMAIL=$valid_email $realcommand SESSION_RELOAD_REQUIRED $TARGET"
-        # sg "$NEW_GROUP" bash
+
+        set +e
+        disable_all_signals
         sudo su - "$(whoami)"
         kill -9 "$PPID"
         # no further processing because exec has been called!