force 1-1 logical to physical sectors

copy our VBR code to backup VBR

scripts/create-disk.sh

@@ -69,7 +69,7 @@ if [[ "$OSTYPE" == "linux-gnu"* ]]; then
 
         # get first partition, this is sloppy might need to review this...
         firstpart=$(lsblk -ilp -o NAME $ld | tr '\n' ' ' | awk '{print $3}')
-        mkfs.fat -v -F32 -n 'STEVIAFS' $firstpart
+        mkfs.fat -v -F32 -s 1 -n 'STEVIAFS' $firstpart
 
         # copy MBR while preserving partition table
         if ! dd if=$mbr_file of=$ld bs=1 count=440; then
@@ -100,6 +100,12 @@ if [[ "$OSTYPE" == "linux-gnu"* ]]; then
             exit 1
         fi
 
+        # write backup VBR
+        if ! dd if=$firstpart of=$firstpart bs=$disk_sector_size count=1 seek=6; then
+            echo "Failed to copy VBR (sector 1) to backup VBR." >&2
+            exit 1
+        fi
+
         #stage2 to sectors 1-64
         if ! dd if=$stage2_file of=$ld bs=$disk_sector_size seek=1; then
             echo "Failed to write Stage2 to disk." >&2