So i found out about this adoptable storage now available with the marshmallow update however i cannot seem to get it to work. I attempted to format my sd card and the option to firmat for primary storage was not applicable. I formatted anyways thinking i'd see the option to do so on the next page. My phone automatically made it a portable storage device with no option to change it. I restarted my phone and tried again to no avail. I checked to make sure everything had indeed updated correctly and it had. I could really use this feature and not having it is frustrating so any thoughts are welcome. Thanks so much.