Can't write to USB on 11.04

Make sure the mount point exists and user has full access.
All in a terminal: ctrl+alt+t
Example.
sudo chown user:group -R /media/<name_of_mountpoint>

## Where 'user' and 'group' is usually similar, lets say user name is bob, it would 'bob:bob'.

Reference.
https://help.ubuntu.com/community/FilePermissions
https://help.ubuntu.com/community/Fstab
https://help.ubuntu.com/community/Mount
https://help.ubuntu.com/community/DrivesAndPartitions

I get this output

bash: syntax error near unexpected token `newline'

Now I more or less understand what the problem is but I am not sure how to solve it. When I try to change user without connecting the USB by the command:
sudo chown bahar:bahar -R /media/usb0
Everything seems fine, but the problem is, when I connect the USB to the netbook, the owner changes again to "root".
When try changing the owner with the USB stick connected, it says "operation not permitted"

> it says "operation not permitted"

First mount the drive then change owner of mountpoint. (Note reference link of mount)

After attaching usb please provide output of:
sudo fdisk -l
mount

This is the output when I try to change the owner after attaching the USB with the command: sudo chown bahar:bahar -R /media/usb0

chown: changing ownership of `/media/usb0/B\334LENT ORTA\307G?L/BULENT ORTACGiL\'E SAYGI - Sarkilar Bir Oyundur/Sarkilar Bir Oyundur CD1/Ferudun Duzagac - Sevgi.MP3': Operation not permitted
chown: changing ownership of `/media/usb0/B\334LENT ORTA\307G?L/BULENT ORTACGiL\'E SAYGI - Sarkilar Bir Oyundur/Sarkilar Bir Oyundur CD1/Gurol Agirbas - Gunaydin.MP3': Operation not permitted

These are the other outputs:

bahar@bahar:~$ sudo fdisk -l

Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000e72e5

   Device Boot Start End Blocks Id System
/dev/sda1 * 1 29637 238053376 83 Linux
/dev/sda2 29637 30402 6142977 5 Extended
/dev/sda5 29637 30402 6142976 82 Linux swap / Solaris

Disk /dev/sdb: 4009 MB, 4009754624 bytes
255 heads, 63 sectors/track, 487 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0002f43e

   Device Boot Start End Blocks Id System
/dev/sdb1 * 1 487 3911796 c W95 FAT32 (LBA)

bahar@bahar:~$ mount
/dev/sda1 on / type ext4 (rw,errors=remount-ro,commit=600)
proc on /proc type proc (rw,noexec,nosuid,nodev)
none on /sys type sysfs (rw,noexec,nosuid,nodev)
fusectl on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
none on /dev type devtmpfs (rw,mode=0755)
none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
none on /dev/shm type tmpfs (rw,nosuid,nodev)
none on /var/run type tmpfs (rw,nosuid,mode=0755)
none on /var/lock type tmpfs (rw,noexec,nosuid,nodev)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
gvfs-fuse-daemon on /home/bahar/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=bahar)
/dev/sdb1 on /media/usb0 type vfat (rw,noexec,nodev,sync,noatime,nodiratime)

Thanks...

Thanks Sam_, that solved my question.

Thanks!
I have read the bug and the solution worked for me too. I removed the usbmount from synaptic and after a reboot, the problem was solved.
Thank you very much.