diff --git a/src/pm b/src/pm
index e461b4b..e777caf 100755
--- a/src/pm
+++ b/src/pm
@@ -76,6 +76,7 @@ checknonroot() {
 
 #----------------- add(install) package function ------------------------
 add() {
+    checkroot
     [[ "$packages" == "" ]] \
         && help \
         && exit 0
@@ -92,6 +93,7 @@ a() {
 
 #-------------------- download package without install function ---------
 down() {
+    checkroot
     [[ "$packages" == "" ]] \
         && help \
         && exit 0
@@ -131,6 +133,7 @@ download() {
 
 #-------------------- unpack local package archive ----------------------
 unpack() {
+    checkroot
     [[ "$archives" == "" ]] \
         && printf "${BBLUE}**${BWHITE} Specify package name [${BRED} ERROR ${BWHITE}]\n${RESET}" \
         && exit 1
@@ -205,6 +208,7 @@ u() {
 
 #------------------ delete package function -----------------------------
 del() {
+    checkroot
     printf "${YELLOW}**${GREEN} deleting\n${RESET}"
     for i in $packages; do
         printf "${YELLOW}**${GREEN} deleting $i\n${RESET}"
@@ -345,6 +349,7 @@ ${RESET}"
 
 #------------------- sync repo function ---------------------------------
 sync() {
+    checkroot
     servers=$(/usr/bin/cat $repofile)
     for i in $servers; do
         printf "${YELLOW}**${GREEN} Sync ${BWHITE}$i\n${RESET}"
@@ -408,6 +413,7 @@ ss() {
 
 #------------------- clear cached packages directory --------------------
 clear() {
+    checkroot
     printf "${YELLOW}**${BWHITE} clearing cached packages directory "
     rm -rf $cachedpkgdir/*
     printf "[${GREEN} OK${BWHITE} ]\n${RESET}"
@@ -422,6 +428,7 @@ c() {
 
 #--- show package dependencies function ---
 deps() {
+    checkroot
     if [[ "$packages" == "" ]]; then
         for i in $(/usr/bin/cat $packagesqueryfile); do
             cd $installedpackagesdir
@@ -462,6 +469,7 @@ deps() {
 
 #--- build package uses PMBUILD file function ---
 buildpkg() {
+    checknonroot
     if [ ! -f ./PMBUILD ]; then
         if [ "$1" != "" ]; then
             source $1
@@ -553,6 +561,7 @@ buildpkg() {
 
 # upgrade system packages function
 upgrade() {
+    checkroot
     total_updates=0
     for i in $(cat $packagesqueryfile); do
         package=$(search $(get_pkgname $i) | awk -F' ' '{ for (i=2; i<=NF; i++) { print $i } }')
@@ -624,6 +633,7 @@ v() {
 
 # install pm to some rootfs directory function
 selfinstall() {
+    checkroot
     [ -z "$destdir" ] && destdir="rootfs"
     printf "${BGREEN}Installing pm to ${BWHITE}$destdir ${BGREEN}directory\n${RESET}"
     printf "${YELLOW}Creating directories... ${RESET}"