diff --git a/client/core/controllers/serverController.cpp b/client/core/controllers/serverController.cpp
index 9ac62759..c7d0317d 100644
--- a/client/core/controllers/serverController.cpp
+++ b/client/core/controllers/serverController.cpp
@@ -818,7 +818,7 @@ ErrorCode ServerController::isServerDpkgBusy(const ServerCredentials &credential
 
             if (stdOut.contains("Packet manager not found"))
                 return ErrorCode::ServerPacketManagerError;
-            if (stdOut.contains("fuser not installed"))
+            if (stdOut.contains("fuser not installed") || stdOut.contains("cat not installed"))
                 return ErrorCode::NoError;
 
             if (stdOut.isEmpty()) {
diff --git a/client/server_scripts/check_server_is_busy.sh b/client/server_scripts/check_server_is_busy.sh
index 7d556e27..feddfed3 100644
--- a/client/server_scripts/check_server_is_busy.sh
+++ b/client/server_scripts/check_server_is_busy.sh
@@ -1,7 +1,7 @@
-if which apt-get > /dev/null 2>&1; then LOCK_FILE="/var/lib/dpkg/lock-frontend";\
-elif which dnf > /dev/null 2>&1; then LOCK_FILE="/var/lib/rpm/.rpm.lock";\
-elif which yum > /dev/null 2>&1; then LOCK_FILE="/var/lib/rpm/.rpm.lock";\
-elif which zypper > /dev/null 2>&1; then LOCK_FILE="/var/lib/rpm/.rpm.lock";\
-elif which pacman > /dev/null 2>&1; then LOCK_FILE="/var/lib/pacman/db.lck";\
+if which apt-get > /dev/null 2>&1; then LOCK_CMD="fuser"; LOCK_FILE="/var/lib/dpkg/lock-frontend";\
+elif which dnf > /dev/null 2>&1; then LOCK_CMD="fuser"; LOCK_FILE="/var/cache/dnf/* /var/run/dnf/* /var/lib/dnf/* /var/lib/rpm/*";\
+elif which yum > /dev/null 2>&1; then LOCK_CMD="cat"; LOCK_FILE="/var/run/yum.pid";\
+elif which zypper > /dev/null 2>&1; then LOCK_CMD="cat"; LOCK_FILE="/var/run/zypp.pid";\
+elif which pacman > /dev/null 2>&1; then LOCK_CMD="fuser"; LOCK_FILE="/var/lib/pacman/db.lck";\
 else echo "Packet manager not found"; echo "Internal error"; exit 1; fi;\
-if command -v fuser > /dev/null 2>&1; then sudo fuser $LOCK_FILE 2>/dev/null; else echo "fuser not installed"; fi
+if command -v $LOCK_CMD > /dev/null 2>&1; then sudo $LOCK_CMD $LOCK_FILE 2>/dev/null; else echo "$LOCK_CMD not installed"; fi