diff --git a/README.md b/README.md
index 89fb673..5597647 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@ This script is "interactive". Meaning that it asks you questions when run to cus
 ## Installing:
 To use this script, please make sure that the following is correct:
 
-* an SD/eMMC card with at least 8 GB storage is plugged in (but not mounted).
+* an **empty** SD/eMMC card with at least 8 GB storage is plugged in.
 * that your user account has `sudo` rights.
 
 ## Known Issues:
diff --git a/manjaro-arm-installer b/manjaro-arm-installer
index 1e178e6..969fe97 100755
--- a/manjaro-arm-installer
+++ b/manjaro-arm-installer
@@ -14,6 +14,7 @@ ROOTPASSWORD=""
 SDCARD=""
 SDTYP=""
 SDDEV=""
+DEV_NAME=""
 TIMEZONE=""
 LOCALE=""
 
@@ -213,6 +214,10 @@ prepare_card () {
     msg "Getting $SDCARD ready for $DEVICE..."
     # For Raspberry Pi devices
     if [[ "$DEVICE" = "rpi2" ]] || [[ "$DEVICE" = "rpi3" ]]; then
+        # umount SD card
+        umount ${SDCARD}${SDDEV}1 1> /dev/null 2>&1
+        umount ${SDCARD}${SDDEV}2 1> /dev/null 2>&1
+
         #partition with boot and root
         parted -s $SDCARD mklabel msdos 1> /dev/null 2>&1
         parted -s $SDCARD mkpart primary fat32 0% 100M 1> /dev/null 2>&1
@@ -232,9 +237,13 @@ prepare_card () {
 
     # For Odroid devices
     elif [[ "$DEVICE" = "oc1" ]] || [[ "$DEVICE" = "oc2" ]] || [[ "$DEVICE" = "xu4" ]]; then
+        # umount SD card
+        umount ${SDCARD}${SDDEV}1 1> /dev/null 2>&1
+        umount ${SDCARD}${SDDEV}2 1> /dev/null 2>&1
+
         #Clear first 8mb
         dd if=/dev/zero of=${SDCARD} bs=1M count=8 1> /dev/null 2>&1
-	
+
     #partition with a single root partition
         parted -s $SDCARD mklabel msdos 1> /dev/null 2>&1
         parted -s $SDCARD mkpart primary ext4 0% 100% 1> /dev/null 2>&1
@@ -247,11 +256,14 @@ prepare_card () {
         mount ${SDCARD}${SDDEV}1 $TMPDIR/root
 
     # For pine devices
-   elif [[ "$DEVICE" = "pinebook" ]] || [[ "$DEVICE" = "sopine" ]]; then
+    elif [[ "$DEVICE" = "pinebook" ]] || [[ "$DEVICE" = "sopine" ]]; then
+        # umount SD card
+        umount ${SDCARD}${SDDEV}1 1> /dev/null 2>&1
+        umount ${SDCARD}${SDDEV}2 1> /dev/null 2>&1
 
     #Clear first 8mb
         dd if=/dev/zero of=${SDCARD} bs=1M count=8 1> /dev/null 2>&1
-	
+
     #partition with a single root partition
         parted -s $SDCARD mklabel msdos 1> /dev/null 2>&1
         parted -s $SDCARD mkpart primary ext4 0% 100% 1> /dev/null 2>&1
@@ -265,10 +277,13 @@ prepare_card () {
 
     # For rockpro64 device
     elif [[ "$DEVICE" = "rock64" ]] || [[ "$DEVICE" = "rockpro64" ]]; then
+        # umount SD card
+        umount ${SDCARD}${SDDEV}1 1> /dev/null 2>&1
+        umount ${SDCARD}${SDDEV}2 1> /dev/null 2>&1
 
     #Clear first 8mb
         dd if=/dev/zero of=${SDCARD} bs=1M count=32 1> /dev/null 2>&1
-	
+
     #partition with a single root partition
         parted -s $SDCARD mklabel msdos 1> /dev/null 2>&1
         parted -s $SDCARD mkpart primary ext4 32M 100% 1> /dev/null 2>&1
@@ -336,27 +351,30 @@ fi
 
 # Using Dialog to ask for user input for variables
 DEVICE=$(dialog --clear --title "Manjaro ARM Installer" \
-        --menu "Choose a device:" 20 51 6 \
-        "rpi3" "Raspberry Pi 3" \
-        "oc2" "Odroid C2" \
-	"pinebook" "Pinebook" \
-	"sopine" "Sopine/Pine64-LTS" \
-	"rock64" "Rock64" \
-	"rpi2" "Raspberry Pi 2 (unmaintained)" \
-	"oc1" "Odroid C1/C1+ (unmaintained)" \
-	"xu4" "Odroid XU4 (unmaintained)" 3>&1 1>&2 2>&3 3>&-)
+        --menu "Choose a device:" 20 75 10 \
+		"pinebook"  "Pinebook" \
+		"rock64"    "ROCK64" \
+		"rockpro64" "ROCKPro64" \
+		"sopine"    "SOPINE / PINE A64-LTS" \
+		"oc2"       "Odroid C2" \
+		"rpi3"      "Raspberry Pi 3" \
+		"oc1"       "Odroid C1/C1+    (unmaintained)" \
+		"xu4"       "Odroid XU4       (unmaintained)" \
+		"rpi2"      "Raspberry Pi 2   (unmaintained)" \
+		3>&1 1>&2 2>&3 3>&-)
 
 
 #The if statement makes sure that the user has put in something in the previous prompt. If not (left blank or pressed cancel) the script will end
 if [ ! -z "$DEVICE" ]
 then
 EDITION=$(dialog --clear --title "Manjaro ARM Installer" \
-	--menu "Choose an edition:" 20 50 5 \
-	"minimal" "Minimal Edition (Just CLI)" \
-	"lxqt" "Full LXQT Desktop and apps (lightweight)" \
-	"kde" "Full KDE/Plasma Desktop (Heavy)" \
-	"mate" "Full MATE desktop and apps (lightweight, unmaintained)" \
-	"i3" "Mininal i3 WM with apps (very light)" 3>&1 1>&2 2>&3 3>&-) 
+	--menu "Choose an edition:" 20 75 10 \
+	"minimal" "Minimal Edition            (only CLI)" \
+	"kde"     "Full KDE/Plasma Desktop    (Heavy)" \
+	"lxqt"    "Full LXQT Desktop and apps (lightweight)" \
+	"i3"      "Mininal i3 WM with apps    (very light)" \
+	"mate"    "Full MATE desktop and apps (lightweight, unmaintained)" \
+	3>&1 1>&2 2>&3 3>&-) 
 
 else 
 	clear
@@ -415,10 +433,11 @@ while read -r line; do
     W+=($line "")
 done < <( lsblk -dn -o NAME )
 SDCARD=$(dialog --title "Manjaro ARM Installer" \
-	--menu "Choose your SDCard - Be sure the correct drive is selected!" 20 50 5 \
+	--menu "Choose your SDCard - Be sure the correct drive is selected!" 20 50 10 \
        	"${W[@]}" 3>&2 2>&1 1>&3)
 
 # add /dev/ to the selected option above
+DEV_NAME=$SDCARD
 SDCARD=/dev/$SDCARD
 SDTYP=${SDCARD:5:2}
 else 
@@ -491,7 +510,7 @@ if [ ! -z "$KEYMAP" ]
 then
 HOSTNAME=$(dialog --clear --title "Manjaro ARM Installer" \
 	--inputbox "Enter desired hostname for this system:" 8 50 \
-        3>&1 1>&2 2>&3 3>&- \
+	3>&1 1>&2 2>&3 3>&- \
 	)
 else 
 	clear
@@ -509,7 +528,7 @@ dialog --clear --title "Manjaro ARM Installer" \
     Timezone = $TIMEZONE
     Locale = $LOCALE
     Keyboard layout = $KEYMAP
-    Hostname = $HOSTNAME" 20 50 \
+    Hostname = $HOSTNAME" 20 70 \
     3>&1 1>&2 2>&3 3>&-
 else
     clear