[Q] sdcard permission and mount issue (KitKat) topic

Hi,

I recently change my rom from an AOKP JB to Carbon KitKat.
Since that i've a "strange" issue with "sdcard" (all other stuff works fine).

What works:

- sdcard in CWM (both shell + usb)
- sdcard on usb (USB transfer or something like this in English)

What does not work:

- Unable to read or write sdcard under Android (/sdcard, ...), the only thing i can do is with root user in "/mnt/media_rw/sdcard0" folder

So, internal storage (sdcard) is not shown and usable in android, and get only ~2 Gb on ~27 Gb makes me :silly:

What i know :

- sdcard is mounted in "/mnt/media_rw/sdcard0" with 700 perm (only root)
- /sdcard -> /storage/sdcard0 which is empty
- I do not see same files between CWM shell and "android" shell so i can't edit conf file which create and mount sdcard on startup (I guess it's not the same file system)
- I'm totally lost on kitkat files hierarchy and how it works :p

I guess, it's a mount/fuse issue between "/mnt/media_rw/sdcard0" and "/storage/sdcard0" and rights problem but i don't know what to do to fix this.
So, any suggestion or help will be really appreciate, thanks :)


HTC ONE X (GSM)
CWM 6.0.4.7
Rom : Carbon 4.4.2 KitKat
HbBoot : 1.39 (Unlocked)