USB key with 7.5 GByte but no space left on device after 4 GByte written

[Wojciech Puchar]

>> formatted properly?
>
> I did a 'ls -l /dev/da*' after key insert and there was only /dev/da0;
> maybe I should do
>
> # newfs_msdos /dev/da0
>
> ???

to be sure do

dd if=/dev/zero of=/dev/da0 bs=64k count=1

before to clean anything from beginning, if any mess is there.