diff --git a/install.sh b/install.sh
index 9eef926..fe42bae 100755
--- a/install.sh
+++ b/install.sh
@@ -165,7 +165,8 @@ check_running() {
 
 
 install_docker_apt() {
-	$SUDO_CMD echo exit 101 > /usr/sbin/policy-rc.d
+	#echo exit 101 > /usr/sbin/policy-rc.d
+	echo exit 101 > /tmp/p-rc; $SUDO_CMD mv /tmp/p-rc /usr/sbin/policy-rc.d
 	$SUDO_CMD chmod +x /usr/sbin/policy-rc.d
 
 	$SUDO_CMD apt-get update
@@ -174,7 +175,7 @@ install_docker_apt() {
 	$SUDO_CMD curl -fsSL https://download.docker.com/linux/debian/gpg | gpg --dearmor -o /etc/apt/keyrings/docker.gpg
 	$SUDO_CMD chmod a+r /etc/apt/keyrings/docker.gpg
 
-	$SUDO_CMD . /etc/os-release; # set VERSION_CODENAME
+	. /etc/os-release; # set variable VERSION_CODENAME
 
 	DOCKER_SOURCE=$($SUDO_CMD cat /etc/apt/sources.list.d/docker.list | grep 'bullseye stable' | wc -l)
 	if [ "$DOCKER_SOURCE" == "0" ]; then 
@@ -282,8 +283,8 @@ $SUDO_CMD docker run \
 --env LETSENCRYPT_MAIL=$LETSENCRYPT_MAIL registry.format.hu/proxy-deployment-tool
 
 # test - alias doesn't work inside a function
-$SUDO_CMD shopt -s expand_aliases
-$SUDO_CMD source $HOME/.bash_aliases
+shopt -s expand_aliases
+source $HOME/.bash_aliases
 service-debian core-dns start info