Comment 17 for bug 14335

Good comment from bug #60722, worth copying here:

ceg (ceg: 2903) wrote on 2008-07-29: #4

You can make your fat filesystem permissions look like matching to your default umask.

Mount options:
for umask 002: dmask=002,fmask=113
 for umask 022: dmask=022,fmask=133
(do not use the unspecific umask option)

As a workaround adjust your personal hal vfat mount options in the gconf-editor, but the defaults need to be dealt with by ubuntu.

Other usefull mount options can be found on:
http://bugs.debian.org/344278