Protection from the dreaded "rm -fr /"

[M. Warner Losh]

In message: <20041002102430.Y5481 at thor.farley.org>
            Sean Farley <sean-freebsd at farley.org> writes:
: Why not default on?  root will not run 'rm -rf /' on purpose very often.
: Once will be enough.  :)  Also, when and why would someone want to do
: this?

Please consider chroots.  Root many want to do this in a chroot.  I'd
prefer at the very least rm -rff / to work.

Warner