XigmaNAS

It can be useful to list currently open files, for example during long rsyncs, to know what is being transferred or written.
I checked but lsof is not provided.
I suggest adding this small tool to the standard distro, since fetching the whole development environment takes much more time and resources.

as a temporary workaround for you
since the package is available in the freebsd ports
ftp://ftp.freebsd.org/pub/FreeBSD/ports ... 88.d,8.tbz

try
pkg_add -r lsof

of course it will be gone once you reboot on an embedded install.

Yes, it worked thanks