The following example in the mount_union manual page has the '-b'
option in -current, but not in 1.0.  I belive the 1.0 manual page
is correct; can someone confirm this or set me right?

>	   mount -t cd9660 -o ro /dev/cd0a /usr/src
>	   mount -t union -o -b /var/obj /usr/src
>
>     mount the CD-ROM drive /dev/cd0a on /usr/src and then attaches /var/obj
>     on top.  For most purposes the effect of this is to make the source tree
>     appear writable even though it is stored on a CD-ROM.

Giles

--
Giles Lean             <giles@nemeton.com.au>           +61 3 9480 2118
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