diff --git a/src/freedombone-installer b/src/freedombone-installer
index 3e2430bb4172adfe8a4c889057f56eebd0f7c83f..42fa21c9ad82649362f48c4526ab81616d51322b 100755
--- a/src/freedombone-installer
+++ b/src/freedombone-installer
@@ -1811,18 +1811,15 @@ function update_system_monitor {
             test_drive=/dev/sda1
             if [[ "$drives_list" != *"$test_drive"* ]]; then
                 test_drive=/dev/mmcblk0p2
-                if [[ "$drives_list" != *"$test_drive"* ]]; then
-                    test_drive=/dev/mmcblk0p1
-                else
-                    test_drive=
-                fi
+            else
+                test_drive=/dev/mmcblk0p1
             fi
         fi
 
         disk_use=$(df -h | grep $test_drive)
         disk_use_percent='0%'
         if [[ "$disk_use" == *"$test_drive"* ]]; then
-            disk_use_percent=$(df -h | grep $test_drive | head_n 1 | awk -F ' ' '{print $5}')
+            disk_use_percent=$(df -h | grep $test_drive | tail -n 1 | awk -F ' ' '{print $5}')
         fi
 
         used_memory=$(free -m | grep "Mem:" | awk -F ' ' '{print $3}')
@@ -1856,7 +1853,6 @@ function update_system_monitor {
 
             if [ "$disk_use_percent" ]; then
                 sed -i "s|<div name=\"diskspace\" class=\"w3-container.*|<div name=\"diskspace\" class=\"w3-container w3-blue w3-round-xlarge\" style=\"width:$disk_use_percent\">$disk_use_percent</div>|g" "$webadmin_install_dir/system_monitor.html"
-                sed -i "s|<div name=\"diskspace\" class=\"w3-container.*|<div name=\"diskspace\" class=\"w3-container w3-blue w3-round-xlarge\" style=\"width:50\">$test_drive</div>|g" "$webadmin_install_dir/system_monitor.html"
             fi
 
             sed -i "s|<div name=\"memory\" class=\"w3-container.*|<div name=\"memory\" class=\"w3-container w3-blue w3-round-xlarge\" style=\"width:${used_memory_percent}%\">${used_memory_percent}%</div>|g" "$webadmin_install_dir/system_monitor.html"