Index: sbin/mdconfig/mdconfig.8
===================================================================
--- sbin/mdconfig/mdconfig.8
+++ sbin/mdconfig/mdconfig.8
@@ -37,12 +37,12 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd November 30, 2013
+.Dd July 25, 2015
 .Dt MDCONFIG 8
 .Os
 .Sh NAME
 .Nm mdconfig
-.Nd configure and enable memory disks
+.Nd configure memory disks
 .Sh SYNOPSIS
 .Nm
 .Fl a
@@ -75,7 +75,7 @@
 .Sh DESCRIPTION
 The
 .Nm
-utility configures and enables
+utility is used to configure
 .Xr md 4
 devices.
 .Pp
@@ -103,7 +103,7 @@
 .Fl o Cm reserve
 option is not set, creating and filling a large
 malloc-backed memory disk is a very easy way to
-panic a system.
+panic the system.
 .It Cm vnode
 A file specified with
 .Fl f Ar file
@@ -164,11 +164,6 @@
 .Cm t
 which
 denotes byte, kilobyte, megabyte, gigabyte and terabyte respectively.
-The
-.Fl a
-and
-.Fl t Ar swap
-options are implied if not specified.
 .It Fl S Ar sectorsize
 Sectorsize to use for the memory disk, in bytes.
 .It Fl x Ar sectors/track
@@ -206,6 +201,11 @@
 .It Oo Cm no Oc Ns Cm force
 Disable/enable extra sanity checks to prevent the user from doing something
 that might adversely affect the system.
+This can be used with the
+.Fl u
+flag, to forcibly destroy an
+.Xr md 4
+disk that is still in use.
 .It Oo Cm no Oc Ns Cm readonly
 Enable/disable readonly mode.
 .El
@@ -227,66 +227,55 @@
 .Fl t Ar vnode
 .Fl f Ar file .
 .Sh EXAMPLES
-Create a 4 megabyte
-.Xr malloc 9
-backed memory disk.
+Create a disk with /tmp/boot.flp as backing storage.
 The name of the allocated unit will be printed on stdout, such as
-.Dq Li md3 :
+.Dq Li md0 :
 .Pp
-.Dl mdconfig -a -t malloc -s 4m
+.Dl mdconfig /tmp/boot.flp
 .Pp
-Create a disk named
-.Pa /dev/md4
-with
-.Pa /tmp/boot.flp
-as backing storage:
+Create a 1 gigabyte
+.Cm swap
+backed memory disk named
+.Dq Li md3 :
 .Pp
-.Dl mdconfig -a -t vnode -f /tmp/boot.flp -u md4
+.Dl mdconfig -s 1g -u md3
 .Pp
 Detach and free all resources used by
-.Pa /dev/md4 :
+.Pa /dev/md3 :
+.Pp
+.Dl mdconfig -du md3
+.Pp
+Show detailed information on currently configured memory disks:
+.Pp
+.Dl mdconfig -lv
 .Pp
-.Dl mdconfig -d -u md4
+Resize the
+.Dq Li md3
+memory disk to 2 gigabytes:
 .Pp
-Create a 128MByte swap backed disk, initialize an
+.Dl mdconfig -rs 2g -u md3
+.Pp
+Create a 1 gigabyte
+.Cm swap
+backed disk, initialize an
 .Xr ffs 7
 file system on it, and mount it on
 .Pa /tmp :
 .Bd -literal -offset indent
-mdconfig -a -t swap -s 128M -u md10
+mdconfig -s 1g -u md10
 newfs -U /dev/md10
 mount /dev/md10 /tmp
 chmod 1777 /tmp
 .Ed
 .Pp
-Create a 5MB file-backed disk
-.Po Fl a
-and
-.Fl t Ar vnode
-are implied
-.Pc :
-.Bd -literal -offset indent
-dd if=/dev/zero of=somebackingfile bs=1k count=5k
-mdconfig -f somebackingfile -u md0
-bsdlabel -w md0 auto
-newfs md0c
-mount /dev/md0c /mnt
-.Ed
-.Pp
-Create an
-.Xr md 4
-device out of an ISO 9660 CD image file
-.Po Fl a
-and
-.Fl t Ar vnode
-are implied
-.Pc , using the first available
+Create a memory disk out of an ISO 9660 CD image file,
+using the first available
 .Xr md 4
-device, and then mount the new memory disk:
+device, and then mount it:
 .Bd -literal -offset indent
-mount -t cd9660 /dev/`mdconfig -f cdimage.iso` /mnt
-.Pp
+mount -t cd9660 /dev/`mdconfig cdimage.iso` /mnt
 .Ed
+.Pp
 Create a file-backed device from a hard disk image that begins
 with 512K of raw header information.
 .Xr gnop 8
@@ -294,7 +283,7 @@
 .Pa md1.nop
 to the start of the filesystem in the image.
 .Bd -literal -offset indent
-mdconfig -f diskimage.img -u md1
+mdconfig -u md1 diskimage.img
 gnop create -o 512K md1
 mount /dev/md1.nop /mnt
 .Ed