Unable to change file permissions on UDISK

[Peter Risdon]

I see there has been a lot of discussion around the place about this 
issue, but none of the forums or list threads I've seen offers a 
solution. The behaviour is as follows:

$ ls -la /media/UDISK\ 2.0/filename
-rwxr-xr-x 1 peter peter 1676 2008-12-29 11:00 /media/UDISK 2.0/filename

$ [sudo] chmod -v 0700 /media/UDISK\ 2.0/filename
mode of `/media/UDISK 2.0/filename' changed to 0700 (rwx------)

$ ls -la /media/UDISK\ 2.0/filename
-rwxr-xr-x 1 peter peter 1676 2008-12-29 11:00 /media/UDISK 2.0/filename

$ mount
[snip]
/dev/sdc1 on /media/UDISK 2.0 type vfat 
(rw,nosuid,nodev,uhelper=devkit,uid=1000,gid=1000,shortname=mixed,dmask=0077,utf8=1,flush) 


My system:

$ uname -a
Linux peter-desktop 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:04:26 
UTC 2009 i686 GNU/Linux


I prefer to keep the fs as vfat for portability. Any guidance on how to 
change permissions on vfat udisks gratefully received.

TIA.

Peter Risdon.