COMPATIBILITY
Historic versions of the cp utility
had a -r option. This implementation
supports that option, however, its
behavior is different from historical
FreeBSD behavior. Use of this option
is strongly discouraged as the
behavior is implementation-dependent.
In FreeBSD, -r is a synonym for -RL
and works the same unless modified by
other flags. Historical
implementations of -r differ as they
copy special files as normal files
while recreating a hierarchy.
sudo mount -t drvfs E: /mnt/e
вот такой командой только что "смонтировал" флешку