Update ventoy_lib.sh

INSTALL/tool/ventoy_lib.sh

@@ -255,13 +255,22 @@ EOF
     partprobe >/dev/null 2>&1
     sleep 3
 
-
     echo 'mkfs on disk partitions ...'
-    while ! [ -e $PART2 ]; do
+    for i in 1 2 3 4 5 6 7; do
+        if [ -b $PART2 ]; then
+            break
+        else
             echo "wait $PART2 ..."
             sleep 1
+        fi
     done
     
+    if ! [ -b $PART2 ]; then
+        MajorMinor=$(sed "s/:/ /" /sys/class/block/${PART2#/dev/}/dev)        
+        echo "mknod -m 0660 $PART2 b $MajorMinor ..."        
+        mknod -m 0660 $PART2 b $MajorMinor
+    fi
+
     echo "create efi fat fs ..."
     for i in 0 1 2 3 4 5 6 7 8 9; do
         if mkfs.vfat -F 16 -n EFI $PART2; then