Update msd.md (#1103)

* Update msd.md

Added the full path for the chmod line for clarify

* Update msd.md

Added an additional step which might be needed to get working

* Update msd.md

* Update msd.md

Added v2/v3/v4 differences

* Update msd.md

docs/msd.md

@@ -102,15 +102,19 @@ Here some options:
         [root@pikvm ~]# losetup -P $loop /var/lib/kvmd/msd/flash.img
         [root@pikvm ~]# mkfs.vfat ${loop}p1
         [root@pikvm ~]# losetup -d $loop
-        [root@pikvm ~]# chmod 666 *.img
+        [root@pikvm ~]# chmod 666 /var/lib/kvmd/msd/*.img
         ```
-
+   
     3. Remount internal storage back to safe read-only mode:
 
         ```console
         [root@pikvm ~]# kvmd-helper-otgmsd-remount ro
         ```
-
+        
+!!! note
+    For V2 you will need to reboot your target system
+    For v3/v4 you will need to toggle the OTG usb, System Menu -> Connect Main USB to server off then on
+    
 ??? example "Step by step: Creating an image on a local macOS"
 
     1. Open `Disk Utility`.