Problem in uploading the hot-fix

Now when I have up loaded the Hot-fix using the web browser and I want to install it in the volum drop down list it does not show the current volume which is active in which the IOS VER11.1.0 is running??? so is it ok to install this hot-fix in some other volume????? or do I have to boot to another IOS and then do this upgrade using the WEB UI coz when I boot to other IOS the volume where Ver 11.1.0 is installed becomes avaliable in the list. Now I also want to know how about the OPSWAT and else hot-fix when i upload it i dont see it in the list, why is that is it getting installed directly or there is some problem with it... ????? can you reply to this... please...