This is a strange problem. I have the following partition table

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          13      102400    7  HPFS/NTFS
Partition 1 does not end on cylinder boundary.
/dev/sda2              13        5737    45978624    7  HPFS/NTFS
/dev/sda3            5738       10600    39062047+  83  Linux
/dev/sda4           10601       19457    71143852+   5  Extended
/dev/sda5           10601       11208     4883728+  82  Linux swap / Solaris
/dev/sda6           11209       15033    30720000    b  W95 FAT32
/dev/sda7           15033       19457    35537920    7  HPFS/NTFS

I dual boot Win7 (sda2) and Ubuntu (sda3) and wanted to use the FAT23 partition to share files across two OS's.

I followed some online tutorial and have done these:

sudo mkdir /media/FAT32 sudo chmod 777 /media/FAT32 sudo mount /dev/sda6/ /media/FAT32

after I mounted the file, I can only read but not be able to write to it.

I checked the file permission, it becomes:

drwxr-xr-x

but after I unmounted the it then becomes

drwxrwxrwx

and I can read and write to it.

very strange.

I don't know where I've down wrong.

Cheers.