You can't change the owner and permissions on fat and ntfs partitions.
You can setup the permissions and owner at mount time.
Open a terminal and list the partitions:
/dev/sdXY ... ... FAT32
sdXY is the fat partition.
To setup the permissions you need to create a new enrty in the fstab
(or modify the old entry if exist)
First get the uuid of the partition:
edit the fstab:
sudo vol_id --uuid /dev/sdXY
and add this line:
gksu gedit /etc/fstab
umask=002 sets the permission to 775(read/write/execute for owner, read/write/execute for group, read/execute for others)
UUID=<copy the uuid of the partition here
> /media/<mount-point> vfat defaults,umask=002,gid=46 0 0
gid=46 sets the group id to 46(plugdev)
By default, the user created during the install is member of the group plugdev(46).
If you want, you can set the owner(by default is root) with the uid option:
For more info about permissions:
For more mount options read the manual page:
(q to quit)
create the <mount point> (a directory in your filesystem where you can access the partition)
replace <mount-point> with a directory name (disk, music, windows ... )
sudo mkdir /media/<mount-point>
mount the partition: