permissions of a partition on USB stick not changing as root even

[Tapas Mishra]

On Thu, Jan 6, 2011 at 12:50 PM, Nils Kassube <kassube at gmx.net> wrote:
> Tapas Mishra wrote:
>> I am having a USB disk.
>> I want to change the permissions of  folder on it from 700 to 755
>> (and all subdirectories in it)
>
> The FAT32 file system doesn't know Linux (Unix) permissions. You could
> only change the permissions with the mount option "umask=022" (I think
> this would be the right one, but I didn't try it myself) when mounting
> the partition. Or maybe you want the dmask mount option?
Ok interesting information.
>See "man 8
> mount" for details. Anyway, it is a setting available only for the
> entire partition,
Yes I want for entire partition.
> not individual directory trees and on the next machine
> the permissions are gone. If you really need Linux permissions, use a
> Linux file system like ext2.
That is exactly the problem this can not happen so I asked here a
solution.Some thing that I can do.