I have Xperia S and I have already installed cwm recovery. I need to use recovery to backup,restore or flash roms from my sdcard. But every time I have the problem:"E:can'not mount /sdcard". I have tried to mount it using adb using :
adb shell su mount -o mnt/sdcard
I still have the problem. Can someone help me to use adb correctly to solve the problem or have any better idea. Thanks