feat: enlarge main partition

provision-pi.sh

@@ -7,7 +7,21 @@ flash_sd () {
     xzcat --stdout $img_file | dd of=$sd_card status=progress
 }
 
+enlarge_partition () {
+    device=$1
+    partnr=2
+    echo "Resize main partition"
+    sfdisk --backup $device -N $partnr << EOF
+,+
+print
+EOF
+    echo "Resize filesystem"
+    e2fsck -f "$device"p$partnr
+    resize2fs -p "$device"p$partnr
+}
+
 read -e -p "Compressed Image file: " IMG_FILE
 read -e -p "SD Card: " SD_CARD
 
 flash_sd "$IMG_FILE" "$SD_CARD"
+enlarge_partition "$SD_CARD"