[ubuntu-uk] Dapper - Can't write to removable disks

[Eamonn Sullivan]

On 9/4/06, Llywelyn Owen <linux at spamtracker.co.uk> wrote:
> I'm having some trouble writing to removable USB disks. Although drag and drop
> seems to work ie I can see and open the moved/copied file/directory, when I
> try to open it in SUSE 10.1 it's not there, occasionally it will succeed in
> copying to the disk but very rarely. The same happens with a USB HDD, I even
> get the copy progress meter, but again nothing there. Everything works fine
> in the opposite direction ie SUSE ---> Dapper
>
> I've tried other non linux OSs and it works OK, but not under Dapper even
> after a VFAT reformat. Is a permission issue?
>
> Any help would be well appreciated, it's getting to the point that I'm
> beginning to think Windows thoughts about Dapper!

I've not had this problem, but my initial question is whether you are
probably unmounting the drive under linux. (Right click, choose
unmount, I think.) The reason is that writes to USB-connected flash
drives are buffered in Linux. The file will appear to copy, but
actually was only written to a memory buffer and not written to the
actual drive until some seconds/minute or two later. When you unmount
the drive, that memory buffer is cleared and actually written to the
disk. Make sense?

-Eamonn