Added optional copying to sd_card

README.md

@@ -19,13 +19,14 @@ To install a Linux distribution manually on a SD card type in:
 To pase the configuration to the program use this syntax:
 ```bash
 (
-  echo "$USER"          #The username
-  echo "mmcblk1"        #The device
-  echo "3"              #The raspberry pi number
-  echo "arch"           #The operation system
-  echo "user_password"  #The user password
-  echo "root_password"  #The root password
-  echo "y"              #Copy wifi configurations to target system
+  echo "$USER"          # The username
+  echo "mmcblk1"        # The device
+  echo "3"              # The raspberry pi number
+  echo "arch"           # The operation system
+  echo "y"              # Transfer image
+  echo "user_password"  # The user password
+  echo "root_password"  # The root password
+  echo "y"              # Copy wifi configurations to target system
 )| sudo bash ./sd_setup.sh
 ```
 

sd_setup.sh

@@ -1,5 +1,6 @@
 #!/bin/bash
 # shellcheck disable=SC2010  # ls  | grep allowed
+# shellcheck disable=SC2143  # Suppress wrong grep -q warning
 
 echo "Setupscript for Raspberry Pi SD's"
 echo
@@ -176,9 +177,12 @@ mount_partitions(){
   echo "The following mounts refering this setup exist:" && mount | grep "$working_folder"
 }
 
-echo "Copy data to $sd_card_path..."
-
-case "$os" in
+echo "Should the image be transfered to $sd_card_path?(y/n)"
+read -r transfer_image
+if [ "$transfer_image" = "y" ]
+  then
+    echo "Starting image transfer..."
+    case "$os" in
       "arch")
         echo "Execute fdisk..."
         (	echo "o"	#Type o. This will clear out any partitions on the drive.
@@ -217,19 +221,26 @@ case "$os" in
       "moode")
         unzip -p "$image_path" | sudo dd of="$sd_card_path" bs=1M conv=fsync || error "DD to $sd_card_path failed."
         sync
-
-    mount_partitions;
         ;;
       "retropie")
         gunzip -c "$image_path" | sudo dd of="$sd_card_path" bs=1M conv=fsync
         sync
-
-    mount_partitions;
         ;;
       *)
         error "Image transfer for operation system \"$os\" is not supported yet!";
         ;;
-esac
+    esac
+  else
+    echo "Skipping image transfer..."
+fi
+
+echo "Start regular mounting procedure..."
+if [ "$(mount | grep -q "$boot_mount_path")" ] && [ "$(mount | grep -q "$root_mount_path")" ]
+  then
+    echo "Everything allready mounted. Skipping..."
+  else
+    mount_partitions
+fi
 
 echo "Define target paths..."
 target_home_path="$root_mount_path/home/";