Display Dialog before formatting HDD/SSD

FAQ.md

@@ -833,3 +833,9 @@ There is an experimental script to connect the RaspiBlitz to a UPS over USB cabl
 To turn it on run from terminal: `/home/admin/config.scripts/blitz.ups.sh on apcusb`
 
 If you have other UPS models or ways to connect ... feel free to extend this script.
+
+## How to recover a BTRFS partition?
+
+This articles goes thru the usual options:
+https://ownyourbits.com/2019/03/03/how-to-recover-a-btrfs-partition/
+https://seravo.fi/2015/using-raid-btrfs-recovering-broken-disks

home.admin/30initHDD.sh

@@ -104,15 +104,22 @@ if [ ${hddGotBlockchain}  -eq 0 ]; then
     exit 1
   fi
 
-  
 
   # now partition/format HDD
   echo
-  echo "# --> Formatting HDD/SSD ..."
-  source <(sudo /home/admin/config.scripts/blitz.datadrive.sh format ${format} ${hddCandidate})
-  if [ ${#error} -gt 0 ]; then
-    echo "# FAIL blitz.datadrive.sh format --> ${error}"
-    echo "# Please report issue to the raspiblitz github."
+  if (whiptail --title "FORMAT HDD/SSD" --yesno "The connected hard drive needs to get formatted.\nIMPORTANT: This will delete all data on that drive." 8 56); then
+    clear
+    echo "# --> Formatting HDD/SSD ..."
+    source <(sudo /home/admin/config.scripts/blitz.datadrive.sh format ${format} ${hddCandidate})
+    if [ ${#error} -gt 0 ]; then
+      echo "# FAIL blitz.datadrive.sh format --> ${error}"
+      echo "# Please report issue to the raspiblitz github."
+      exit 1
+    fi
+   else
+    clear
+    echo "# Not formatting the HDD/SSD - Setup Process stopped."
+    echo "# Rearrange your hardware and retstart with a fresh sd card again."
     exit 1
   fi
 

home.admin/config.scripts/blitz.datadrive.sh

@@ -138,10 +138,10 @@ if [ "$1" = "status" ]; then
         sudo mkdir -p /mnt/storage
         if [ "${hddFormat}" = "btrfs" ]; then
           # in btrfs setup the second partition is storage partition
-          sudo mount /dev/${hdd}2 /mnt/storage
+          sudo mount /dev/${hdd}2 /mnt/storage 2>/dev/null
         else
           # in ext4 setup the first partition is also the storage partition
-          sudo mount /dev/${hdd}1 /mnt/storage
+          sudo mount /dev/${hdd}1 /mnt/storage 2>/dev/null
         fi
         isTempMounted=$(df | grep /mnt/storage | grep -c ${hdd})
         if [ ${isTempMounted} -eq 0 ]; then