sudo kextunload -b com.apple.driver.AppleSDXC
sudo kextload -b com.apple.driver.AppleSDXC

sudo kextunload /System/Library/Extensions/AppleStorageDrivers.kext/Contents/PlugIns/AppleUSBCardReader.kext; sudo kextload /System/Library/Extensions/AppleStorageDrivers.kext/Contents/PlugIns/AppleUSBCardReader.kext

display dialog "Your Administrator Password:" default answer "" with hidden answer
set PWD to text returned of the result
do shell script "sudo kextunload /System/Library/Extensions/AppleStorageDrivers.kext/Contents/PlugIns/AppleUSBCardReader.kext; sudo kextload /System/Library/Extensions/AppleStorageDrivers.kext/Contents/PlugIns/AppleUSBCardReader.kext" user name "[UserName]" password PWD with administrator privileges

return input

display dialog "Your Administrator Password:" default answer "" with hidden answer
set PWD to text returned of the result
do shell script "sudo kextunload /System/Library/Extensions/AppleStorageDrivers.kext/Contents/PlugIns/AppleUSBCardReader.kext; sudo kextload /System/Library/Extensions/AppleStorageDrivers.kext/Contents/PlugIns/AppleUSBCardReader.kext" user name "[UserName]" password PWD with administrator privileges

return input

on run {input, parameters}

        display dialog "Your Administrator Password:" default answer "" with hidden answer
        set PWD to text returned of the result

        do shell script "sudo kextunload -b com.apple.driver.AppleSDXC; sudo kextload -b com.apple.driver.AppleSDXC" user name "[UserName]" password PWD with administrator privileges

    return input
end run

diskutil unmount /dev/disk2s1

Volume VM Drive on disk2s1 unmounted

diskutil mount /dev/disk2s1

Volume VM Drive on /dev/disk2s1 mounted