permission problem - disk on key on PI

[E.S. Rosenberg]

Last time I checked vfat doesn't do linux permissions well, instead
you need to mount it with user permissions (though I have to say I
haven't dealt with vfat in years).

If you can't change the contents of the flash drive it could also be a
pointer to the memory failing...

HTH,
Eliyahu - אליהו

2015-03-17 9:08 GMT+02:00 Shlomo Solomon <shlomo.solomon at gmail.com>:
> Can anyone suggest why I can't seem to change permissions of files on a
> disk-on-key mounted on my PI?
> The chmod command reports success, but nothing has changed.
> BTW - all commands over SSH
>
> Here's the Raspbian version:
> pi at raspberrypi /media/D80C-5ACC/pictures $ uname -a
> Linux raspberrypi 3.18.7-v7+ #755 SMP PREEMPT Thu Feb 12 17:20:48 GMT
> 2015 armv7l GNU/Linux
>
> Here's the relevant line from /etc/fstab on the PI:
> /dev/sda1      /media/D80C-5ACC vfat    defaults,noatime  0       1
>
>
> pi at raspberrypi /media/D80C-5ACC/pictures $ ls -la
> total 52484
> drwxr-xr-x 2 root root    4096 Mar 10 19:51 .
> drwxr-xr-x 7 root root    4096 Jan  1  1970 ..
> -rwxr-xr-x 1 root root 3387111 Mar  3 08:32 a.jpg
> -rwxr-xr-x 1 root root 3470696 Mar  3 08:31 b.jpg
> -rwxr-xr-x 1 root root 2924927 Mar  3 08:30 c.jpg
>
> << snip snip >>
>
> pi at raspberrypi /media/D80C-5ACC/pictures $ sudo chmod -v -R 777 *
> mode of `a.jpg' changed from 0755 (rwxr-xr-x) to 0777 (rwxrwxrwx)
> mode of `b.jpg' changed from 0755 (rwxr-xr-x) to 0777 (rwxrwxrwx)
> mode of `c.jpg' changed from 0755 (rwxr-xr-x) to 0777 (rwxrwxrwx)
>
> << snip snip >>
>
> pi at raspberrypi /media/D80C-5ACC/pictures $ ls -la
> total 52484
> drwxr-xr-x 2 root root    4096 Mar 10 19:51 .
> drwxr-xr-x 7 root root    4096 Jan  1  1970 ..
> -rwxr-xr-x 1 root root 3387111 Mar  3 08:32 a.jpg
> -rwxr-xr-x 1 root root 3470696 Mar  3 08:31 b.jpg
> -rwxr-xr-x 1 root root 2924927 Mar  3 08:30 c.jpg
>
>
>
> --
> Shlomo Solomon
> http://the-solomons.net
> Sent by Claws Mail 3.11.1 - KDE 4.12.15 - LINUX Mageia 4
>
>
> _______________________________________________
> Linux-il mailing list
> Linux-il at cs.huji.ac.il
> http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il