[Q] failed to mount /sdcard error

hi guys

this is my first post on this kickass site and i hope that someone can help me with this rather strange error :victory:
as the subject of topic says , i get this error whenever i boot my friends sgs into recovery as normal booting goes on loop forever.
this is the error i get in the recovery of stock I9000XXJVU:
----------------------------------------------------------------------------------------
--Copying media files...
E:failed to mount /sdcard (file exists)
E:copy_dbdata_media:can't mount /sdcard
your storage not prepared yet,please use UI menu for format and reboot actions
media files copy failed

# MANUAL MODE #

-- Applying Multi-CSC...
Installing Multi-CSC
Can't access to '/system/csc/TRA/system/'.
Successfully applied multi-CSC
----------------------------------------------------------------------------------------
what happened is this:
my friend had a sgs and i wanted to flash it with cyanogenmod 10 (android 4.1)
the stock firmware was 2.2 iirc.
i just rooted the stock and flashed the 4.1
it went ok but i saw the mounting error back then sometime that i rebooted the device with 4.1 on it but didn't get that error all the time and it would boot just fine.

then the error popuped more and more.
so i decided to flash stock 2.3.6 ,rooting it and finaly go back to 4.1.
after i flashed the device using I9000XXJVU it goes on loop.
recovery and downloading mode works.but the recovery give me that error i said above.

i guess a hardware issue but i don't know for sure

i'm lost here :silly:
help me plz

Thanks in advance

Donovan662 said:

Hi flash this http://db.tt/T8ZpfTPa in pda section in odin

Then see & follow my last post in this thread

http://xdaforums.com/showthread.php?t=1993937

Click to expand...

Click to collapse

thanks for the reply.
i did what you said and its still in loop and same error in recover.
why my internal sdcard isn't mountable?can it be hardware failure?

Donovan662 said:

Same errors?

Click to expand...

Click to collapse

yep same error as before.
after flashing is done and it want to install the package,it get stock and give me that mounting error.
i just want to know if this problem is software or hardware

thanks for the help guys
i tried everything that came to my mine and used this topic for my errors but still get errors
problem 11 and 12 are the ones i get flashing different roms
even tried a Rescue kit from here but no go...

why this is happening to me?