diff --git a/usr/lib/archboot/update-installer.sh b/usr/lib/archboot/update-installer.sh
index 5a55b3086..cbe99f696 100644
--- a/usr/lib/archboot/update-installer.sh
+++ b/usr/lib/archboot/update-installer.sh
@@ -334,16 +334,12 @@ _cleanup_cache() {
 # needed for programs which check disk space
 _home_root_mount() {
     if ! mountpoint /home >/dev/null 2>&1; then
-        echo "Waiting for mount being available ..."
-        while ! mount >/dev/null 2>&1; do
-            sleep 1
-        done
         echo "Mount tmpfs on /home ..."
-        mount -t tmpfs tmpfs /home
+        /usr/bin/mount -t tmpfs tmpfs /home
     fi
     if ! mountpoint /root >/dev/null 2>&1; then
         echo "Mount tmpfs on /root ..."
-        mount -t tmpfs tmpfs /root
+        /usr/bin/mount -t tmpfs tmpfs /root
     fi
 }