permission problem - disk on key on PI

[Shlomo Solomon]

Thanks - that was the problem. I tried the same thing with an external
disk (ext3) and it worked as expected.

On Tue, 17 Mar 2015 10:15:26 +0200
"E.S. Rosenberg" <esr+linux-il at g.jct.ac.il> wrote:

> 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
> >
> >
> > _______________________________________________
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> > Linux-il at cs.huji.ac.il
> > http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il



-- 
Shlomo Solomon
http://the-solomons.net
Sent by Claws Mail 3.11.1 - KDE 4.12.15 - LINUX Mageia 4