Tell fdisk(8) about our geometry.

Strictly speaking this is unnecessary, but it allows nanobsd to work
on systems from before the -x and -y arguments to mdconfig(8) worked
for vnode backing.

Submitted by:	"Oivind H. Danielsen" <oivind.danielsen@kopek.net>

tools/tools/nanobsd/i386.diskimage

@@ -30,6 +30,8 @@ MD=`mdconfig -a -t vnode -f ${TMPFILE0} -x ${SC} -y ${HD}`
 rm -f ${TMPFILE0}
 (
 sl=`expr "(" ${SECTS} - ${SC} - ${DATASLICE} ")" / 2`
+cyl=`expr ${SECTS} / ${SC} / ${HD}`
+echo g c${cyl} h${HD} s${SC}
 echo p 1 165 ${SC} $sl
 echo p 2 165 `expr ${SC} + $sl` $sl
 echo p 3 165 `expr ${SC} + $sl + $sl` ${DATASLICE}