xref: /netbsd-current/etc/MAKEDEV.tmpl

#!/bin/sh -
#	$NetBSD: MAKEDEV.tmpl,v 1.132 2010/03/06 21:33:20 plunky Exp $
#
# Copyright (c) 2003,2007,2008 The NetBSD Foundation, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
#
###########################################################################
#
#   PLEASE RUN "cd ../share/man/man8 ; make makedevs"
#   AFTER CHANGING THIS FILE, AND COMMIT THE UPDATED MANPAGE!
#
###########################################################################
#
# Device "make" file.  Valid special arguments:
#	all	makes all known devices, including local devices.
#		Tries to make the 'standard' number of each type.
#	init	A set of devices that is used for MFS /dev by init.
#		May be equal to "all".
#	floppy	devices to be put on install floppies
#	ramdisk	devices to be put into INSTALL kernel ramdisks.
#	std	standard devices
#	local	configuration specific devices
#	wscons	make wscons devices
#	usbs	make USB devices
#	isdns	make ISDN devices
#
# Tapes:
#	st*	SCSI tapes
#	wt*	QIC-interfaced (e.g. not SCSI) 3M cartridge tape
#	ht*	MASSBUS TM03 and TU??
#	mt*	MSCP tapes (e.g. TU81, TK50)
#	tm*	UNIBUS TM11 and TE10 emulations (e.g. Emulex TC-11)
#	ts*	UNIBUS TS11
#	ut*	UNIBUS TU45 emulations (e.g. si 9700)
#	uu*	TU58 cassettes on DL11 controller
#
# Disks:
#	ccd*	concatenated disk devices
#	cd*	SCSI or ATAPI CD-ROM
#	cgd*	cryptographic disk devices
#	raid*	RAIDframe disk devices
#	sd*	SCSI disks
#	wd*	"winchester" disk drives (ST506,IDE,ESDI,RLL,...)
#	bmd*	Nereid bank memory disks
#	ed*	IBM PS/2 ESDI disk devices
#	fd*	"floppy" disk drives (3 1/2", 5 1/4")
#	fss*	Files system snapshot devices
#	gdrom*	Dreamcast "gigadisc" CD-ROM drive
#	hk*	UNIBUS RK06 and RK07
#	hp*	MASSBUS RM??
#	ld*	Logical disk devices (e.g., hardware RAID)
#	mcd*	Mitsumi CD-ROM
#	md*	memory pseudo-disk devices
#	ofdisk*	OpenFirmware disk devices
#	ra*	MSCP disks (RA??, RD??)
#	rb*	730 IDC w/ RB80 and/or RB02
#	rd*	HDC9224 RD disks on VS2000
#	rl*	UNIBUS RL02
#	rx*	MSCP floppy disk (RX33/50/...)
#	up*	other UNIBUS devices (e.g. on Emulex SC-21V controller)
#	vnd*	"file" pseudo-disks
#	xbd*	Xen virtual disks
#	xd*	Xylogic 753/7053 disks
#	xy*	Xylogic 450/451 disks
#
# Pointing devices:
#	wsmouse* wscons mouse events
#	lms*	Logitech bus mouse
#	mms*	Microsoft bus mouse
#	qms*	"quadrature mouse"
#	pms*	PS/2 mouse
#	mouse	mouse (provides events, for X11)
#
# Keyboard devices:
#	wskbd*	wscons keyboard events
#	kbd	raw keyboard (provides events, for X11)
#	kbdctl	keyboard control
#
# Terminals/Console ports:
#	tty[01]*	standard serial ports
#	tty0*	SB1250 ("sbscn") serial ports (sbmips)
#	ttyE*	wscons - Workstation console ("wscons") glass-tty emulators
#	ttyCZ?	Cyclades-Z multiport serial boards.  Each "unit"
#		makes 64 ports.
#	ttyCY?	Cyclom-Y multiport serial boards. Each "unit" makes
#		32 ports.
#	ttye*	ITE bitmapped consoles
#	ttyv0	pccons
#	ttyC?	NS16550 ("com") serial ports
#	ttyS*	SA1110 serial port (hpcarm)
#	ttyTX?	TX39 internal serial ports (hpcmips)
#	ttyB?	DEC 3000 ZS8530 ("scc") serial ports (alpha)
#	ttyA*	mfc serial ports (amiga)
#	ttyB*	msc serial ports (amiga)
#	ttyC*	com style serial ports (DraCo, HyperCom) (amiga)
#		On the DraCo, units 0 and 1 are the built-in "modem" and
#		"mouse" ports, if configured.
#	ttyA0   8530 Channel A (formerly ser02) (atari)
#	ttyA1	8530 Channel B (formerly mdm02) (atari)
#	ttyB0	UART on first 68901 (formerly mdm01) (atari)
#	ixpcom	IXP12x0 COM ports
#	epcom	EP93xx COM ports
#	ttyM?	HP200/300 4 port serial mux interface (hp300)
#	ttya	"ttya" system console (luna68k)
#	ttyb	second system serial port (luna68k)
#	tty*	Onboard serial ports (mvme68k)
#		On the mvme147 these are: ttyZ1, ttyZ2 and ttyZ3.
#		On the mvme167, and '177: ttyC1, ttyC2 and ttyC3.
#		Note that tty[CZ]0 is grabbed by the console device
#		so is not created by default
#	dc*	PMAX 4 channel serial interface (kbd, mouse, modem, printer)
#	scc*	82530 serial interface (pmax)
#	ttyZ*	Zilog 8530 ("zstty") serial ports
#	tty[abcd]	Built-in serial ports (sparc)
#	tty*	Z88530 serial controllers (sparc64)
#	ttyh*	SAB82532 serial controllers (sparc64)
#	tty[a-j]	Built-in serial ports (sun2, sun3)
#	ttyC?	pccons (arc)
#	dz*	UNIBUS DZ11 and DZ32 (vax)
#	dh*	UNIBUS DH11 and emulations (e.g. Able DMAX, Emulex CS-11) (vax)
#	dmf*	UNIBUS DMF32 (vax)
#	dhu*    UNIBUS DHU11 (vax)
#	dmz*    UNIBUS DMZ32 (vax)
#	dl*	UNIBUS DL11 (vax)
#	xencons	Xen virtual console
#
# Terminal multiplexors:
#	dc*	4 channel serial interface (keyboard, mouse, modem, printer)
#	dh*	UNIBUS DH11 and emulations (e.g. Able DMAX, Emulex CS-11)
#	dhu*	UNIBUS DHU11
#	dl*	UNIBUS DL11
#	dmf*	UNIBUS DMF32
#	dmz*	UNIBUS DMZ32
#	dz*	UNIBUS DZ11 and DZ32
#	scc*	82530 serial interface
#
# Call units:
#	dn*	UNIBUS DN11 and emulations (e.g. Able Quadracall)
#
# Pseudo terminals:
#	ptm	pty multiplexor device, and pts directory
#	pty*	set of 16 master and slave pseudo terminals
#	opty	first 16 ptys, to save inodes on install media
#	ipty	first 2 ptys, for install media use only
#
# Printers:
#	arcpp*	Archimedes parallel port
#	lpt*	stock lp
#	lpa*	interruptless lp
#	par*	Amiga motherboard parallel port
#	cpi*	Macintosh Nubus CSI parallel printer card
#
# USB devices:
#	usb*	USB control devices
#	uhid*	USB generic HID devices
#	ulpt*	USB printer devices
#	ugen*	USB generic devices
#	urio*	USB Diamond Rio 500 devices
#	uscanner*	USB scanners
#	ttyHS*	USB Option N.V. modems
#	ttyU*	USB modems
#	ttyY*	USB serial adapters
#
# ISDN devices:
#	isdn	communication between userland isdnd and kernel
#	isdnctl	control device
#	isdnbchan* raw b-channel access
#	isdntel*	telephony device
#	isdnteld*	telephony dialout device
#	isdntrc*	trace device
#
# Video devices:
#	bwtwo*	monochromatic frame buffer
#	cgtwo*	8-bit color frame buffer
#	cgthree*	8-bit color frame buffer
#	cgfour*	8-bit color frame buffer
#	cgsix*	accelerated 8-bit color frame buffer
#	cgeight*	24-bit color frame buffer
#	etvme	Tseng et-compatible cards on VME (atari)
#	ik*	UNIBUS interface to Ikonas frame buffer
#	leo	Circad Leonardo VME-bus true color (atari)
#	ps*	UNIBUS interface to Picture System 2
#	qv*	QVSS (MicroVAX) display
#	tcx*	accelerated 8/24-bit color frame buffer
#
# Maple bus devices:
#	maple	Maple bus control devices
#	mlcd*	Maple bus LCD devices
#	mmem*	Maple bus storage devices
#
# IEEE1394 bus devices:
#	fw*	IEEE1394 bus generic node access devices
#	fwmem*	IEEE1394 bus physical memory of the remote node access devices
#
# Special purpose devices:
#	ad*	UNIBUS interface to Data Translation A/D converter
#	agp*	AGP GART devices
#	altq	ALTQ control interface
#	amr*	AMI MegaRaid control device
#	apm	power management device
#	audio*	audio devices
#	bell*	OPM bell device (x68k)
#	bktr	Brooktree 848/849/878/879 based TV cards
#	bpf	packet filter
#	bthub	Bluetooth Device Hub control interface
#	cfs*	Coda file system device
#	ch*	SCSI media changer
#	cir*	Consumer IR
#	clockctl clock control for non root users
#	cpuctl	CPU control
#	crypto	hardware crypto access driver
#	dmoverio hardware-assisted data movers
#	dpt*	DPT/Adaptec EATA RAID management interface
#	dpti*	DPT/Adaptec I2O RAID management interface
#	drm*	Direct Rendering Manager interface
#	fb*	PMAX generic framebuffer pseudo-device
#	fd	file descriptors
#	grf*	graphics frame buffer device
#	hdaudio* High Definition audio control device
#	hil	HP300 HIL input devices
#	icp	ICP-Vortex/Intel RAID control interface
#	iic*	IIC bus device
#	io	x86 IOPL access for COMPAT_10, COMPAT_FREEBSD
#	iop*	I2O IOP control interface
#	ipl	IP Filter
#	irframe* IrDA physical frame
#	ite*	terminal emulator interface to HP300 graphics devices
#	joy*	joystick device
#	kttcp	kernel ttcp helper device
#	lockstat kernel locking statistics
#	magma*	Magma multiport serial/parallel cards
#	midi*	MIDI
#	mlx*	Mylex DAC960 control interface
#	mly*	Mylex AcceleRAID/eXtremeRAID control interface
#	np*	UNIBUS Ethernet co-processor interface, for downloading.
#	nsmb*	SMB requester
#	openfirm OpenFirmware accessor
#	pad*	Pseudo-audio device driver
#	pci*	PCI bus access devices
#	pf	PF packet filter
#	pow*	power management device (x68k)
#	putter	Pass-to-Userspace Transporter
#	px*	PixelStamp Xserver access
#	radio*	radio devices
#	random	Random number generator
#	rtc*	RealTimeClock
#	satlink* PlanetConnect satellite receiver driver
#	scsibus* SCSI busses
#	se*	SCSI Ethernet
#	ses*	SES/SAF-TE SCSI Devices
#	speaker	PC speaker		(XXX - installed)
#	sram	battery backuped memory (x68k)
#	ss*	SCSI scanner
#	stic*	PixelStamp interface chip
#	sysmon	System Monitoring hardware
#	tap*	virtual Ethernet device
#	tun*	network tunnel driver
#	twa	3ware Apache control interface
#	twe	3ware Escalade control interface
#	uk*	unknown SCSI device
#	veriexec Veriexec fingerprint loader
#	video*	video capture devices
#	view*	generic interface to graphic displays (Amiga)
#	vmegen*	generic VME access
#	wsfont*	console font control
#	wsmux*	wscons event multiplexor
#	xenevt	Xen event interface


#
# NOTE:
#
# * MAKEDEV is used both as a standalone script (via "sh ./MAKEDEV
#   all" or similar), and as a function library for MAKEDEV.local (via
#   "MAKEDEV_AS_LIBRARY=1 . MAKEDEV").  Because of this, the script
#   should consist almost entirely of function definitions, apart from a
#   few lines right at the end.
#
# * MAKEDEV may be executed in an environment that is missing some
#   common commands.  For example, it may be executed from a minimal
#   system used during installation, or it may be executed early in the
#   boot sequence before most file systems have been mounted.  It may
#   also be executed in a cross-build environment on a non-NetBSD host.
#

usage()
{
	cat 1>&2 << _USAGE_
Usage: ${0##*/} [-fMs] [-m mknod] [-p pax] [-t mtree] special [...]
	Create listed special devices.  Options:
	-f		Force permissions to be updated on existing devices.
	-M		Create memory file system.
	-m mknod	Name of mknod(8) program.  [\$TOOL_MKNOD or mknod]
	-p pax  	Name of pax(1) program.  [\$TOOL_PAX or pax]
	-s		Generate mtree(8) specfile instead of creating devices.
	-t mtree	Name of mtree(8) program.  [\$TOOL_MTREE or mtree]

_USAGE_
	exit 1
}

# zeropad width number
#	display number with a zero (`0') padding of width digits.
#
zeropad()
{
	case $(($1 - ${#2})) in
	5)	echo 00000$2;;
	4)	echo 0000$2;;
	3)	echo 000$2;;
	2)	echo 00$2;;
	1)	echo 0$2;;
	0)	echo $2;;
	*)	die "bad padding" ;;
	esac
}

# hexprint number
#	display (base10) number as hexadecimal
#
hexprint()
{
	val="$(($1 + 0))"
	hex=
	set -- 0 1 2 3 4 5 6 7 8 9 a b c d e f
	while [ "$val" -gt 0 ]; do
		eval hex=\$$(($val % 16 + 1))\$hex
		val="$(($val / 16))"
	done
	echo "${hex:-0}"
}

# linecount multiline_string
#	count the number of lines in the string
#
linecount()
{
	local IFS='
' # just a newline, no other white space between the quotes
	set -- $1
	echo $#
}

# nooutput -12 cmd [args...]
#	run a command with stdout and/or stderr ignored.
#	"nooutput -1 cmd" is like "cmd >/dev/null";
#	"nooutput -2 cmd" is like "{ cmd ; } 2>/dev/null";
#	"nooutput -12 cmd" is like "{ cmd ; } >/dev/null 2>&1";
#	except they should work even if /dev/null doesn't [yet] exist.
#
#	The "{...}" wrapper used in cases where stderr is redirected
#	serves to capture shell error messages such as "cmd: not found".
#
nooutput()
{
	local flags="$1" ; shift
	local junk
	case "$flags" in
	"-1")	junk="$( "$@" )" ;;
	"-2")	exec 4>&1 ; junk="$( { "$@" ; } 2>&1 1>&4 )" ; exec 4>&- ;;
	"-12")	junk="$( { "$@" ; } 2>&1 )" ;;
	*)	warn "Incorrect use of nooutput" ;;
	esac
}

# check_pax path_to_pax
#	Check whether pax exists and supports the command line options
#	and input format that we will want to use.
#
check_pax()
{
	local pax="$1"
	echo ". type=dir optional" | nooutput -12 "${pax}" -r -w -M -pe .
}

# check_mtree path_to_mtree
#	Check whether mtree exists and supports the command line options
#	and input format that we will want to use.
#
check_mtree()
{
	local mtree="$1"
	echo ". type=dir optional" | nooutput -12 "${mtree}" -e -U
}

# setup args...
#	Parse command line arguments, exit on error.
#	Callers should shift $((OPTIND - 1)) afterwards.
#
setup()
{
	PATH=/sbin:/usr/sbin:/bin:/usr/bin:/rescue

	: ${TOOL_MKNOD:=mknod}
	: ${TOOL_MTREE:=mtree}
	: ${TOOL_PAX:=pax}
	do_create_mfs=false
	do_force=false
	do_mknod=false
	do_pax=false
	do_mtree=false
	do_redirect=false
	do_specfile=false
	opts=
	while getopts Mfm:p:st: ch; do
		# Note that $opts is only for options pased through to
		# MAKEDEV.local, not for all options.
		case ${ch} in
		M)
			# "-M" sets do_create_mfs;
			# "-M -M" is for use from init(8), and sets do_redirect
			do_redirect=$do_create_mfs
			do_create_mfs=true
			;;
		f)	do_force=true
			opts="${opts} -f"
			;;
		m)	TOOL_MKNOD=${OPTARG}
			do_mknod=true
			opts="${opts} -m ${OPTARG}"
			;;
		p)	TOOL_PAX="${OPTARG}"
			if check_pax "${TOOL_PAX}"; then
				do_pax=true
				# do not add this to $opts; we will later
				# add "-s" instead.
			else
				warn "Ignored -p option:" \
					"${TOOL_PAX} is missing or broken"
				do_mknod=true
			fi
			;;
		s)	do_specfile=true
			opts="${opts} -s"
			;;
		t)	TOOL_MTREE="${OPTARG}"
			if check_mtree "${TOOL_MTREE}"; then
				do_mtree=true
				# do not add this to $opts; we will later
				# add "-s" instead.
			else
				warn "Ignored -t option:" \
					"${TOOL_MTREE} is missing or broken"
				do_mknod=true
			fi
			;;
		*)	usage ;;
		esac
	done

	shift $((${OPTIND} - 1))
	[ $# -gt 0 ] || usage

	u_root="%uid_root%"
	u_uucp="%uid_uucp%"
	g_kmem="%gid_kmem%"
	g_ntpd="%gid_ntpd%"
	g_operator="%gid_operator%"
	g_wheel="%gid_wheel%"
	dialin=0
	dialout=524288
	callunit=262144

	# only allow read&write for owner by default
	umask 077

	# Set fdesc_mounted=true if the fdesc file system is mounted
	# on the current directory (typically "/dev").
	# Later, this will be used to suppress creation of device nodes
	# that are supplied by the fdesc file system.
	#
	fdesc_mounted=false
	if [ -d fd ]; then
		# Parse the output from "mount -u -o nosuchoption .".
		# We don't parse the output from df(1) because that's
		# less likely to be available on install media.
		#
		# If the current directory is a mount point for the
		# fdesc file system, then the expected output (whether
		# or not the current user is root) is:
		#	mount_fdesc: -o suchoption: option not supported.
		#
		# If the current directory is not a mount point, then
		# the expected output is:
		#	mount: .: unknown special file or file system.
		#
		# If we are not running on NetBSD, or mount(8) is not
		# found, then we should get some other error message.
		#
		case "$({ LC_ALL=C mount -u -o nosuchoption . ; } 2>&1)" in
		*mount_fdesc*)	fdesc_mounted=true ;;
		esac
	fi

	# do_force requires mknod
	if $do_force; then
		if $do_mtree || $do_pax || $do_specfile; then
			die "-f option works only with mknod"
		fi
		do_mknod=true
	fi

	# If no explicit method was specified on the command line or
	# forced above, then use one of mtree, pax, or mknod, in that
	# order of preference.
	#
	# mtree is preferred because it's fast and designed for the
	# purpose.  However, it's unlikely to be available early in the
	# boot sequence, when init(8) may invoke MAKEDEV(8).
	#
	# pax is usually acceptable, and it's likely to be available
	# early in the boot sequence.  However, it's much slower than mtree.
	#
	# mknod is just very slow, because the shell has to fork for
	# each device node.
	#
	if ! ( $do_mtree || $do_pax || $do_mknod || $do_specfile ); then
		if check_mtree "${TOOL_MTREE}"; then
			do_mtree=true
		elif check_pax "${TOOL_PAX}"; then
			do_pax=true
		else
			do_mknod=true
		fi
	fi

	# Now we need exactly one node-creation method.
	case $(( $($do_mtree && echo 1 || echo 0) + \
		$($do_pax && echo 1 || echo 0) + \
		$($do_mknod && echo 1 || echo 0) + \
		$($do_specfile && echo 1 || echo 0) ))
	in
	1)	: OK ;;
	*)	die "-m, -p, -s, and -t options are mutually exclusive" ;;
	esac

	# If we are using mknod, then decide what options to pass it.
	if $do_mknod; then
		MKNOD="${TOOL_MKNOD:-mknod} -F netbsd"
		if $do_force; then
			MKNOD="${MKNOD} -R"
		else
			MKNOD="${MKNOD} -r"
		fi
	fi

	# do_mtree or do_pax internally implies do_specfile.
	# This happens after checking for mutually-exclusive options.
	if ($do_mtree || $do_pax) && ! $do_specfile; then
		do_specfile=true
		opts="${opts} -s"
	fi
}

# wrap_makedev makedev_name ...
#	Invoke a makedev-like function, with additional processing
#	as appropriate for use from the outer level.
#
wrap_makedev()
{
	if $do_specfile; then
		# "." must appear as the first line of the specfile.
		# "optional" means do not create the directory itself.
		echo ". type=dir optional"
	fi
	"$@"
}

# makedev_main makedev_name args...
#	Perform most of the work of the main program.  makedev_name
#	is typically "makedev", but may be the name of some other
#	makedev-like function (if we are invoked from MAKEDEV.local or
#	some other script).  The other args to this function are the
#	command line args with which the MAKEDEV (or MAKEDEV.local)
#	script was invoked.
#
makedev_main()
{
	local makedev="$1" ; shift

	# Parse command line args
	setup ${1+"$@"}
	shift $((${OPTIND}-1))

	if $do_create_mfs; then
		# Count inodes and create mfs file system.
		# The makedev call merely updates $count_nodes.
		count_nodes=0
		$makedev ${1+"$@"}
		create_mfs_dev $count_nodes
		unset count_nodes
	fi

	# If using mtree or pax, then wrap_makedev should print an mtree
	# specification, which we postprocess to create the device nodes.
	# Otherwise, wrap_makedev should do all the work itself.
	if $do_mtree ; then
		wrap_makedev $makedev ${1+"$@"} \
		| nooutput -1 "${TOOL_MTREE}" -e -U
	elif $do_pax ; then
		wrap_makedev $makedev ${1+"$@"} \
		| (
		    # Run pax in an empty directory, so it pays
		    # attention only to the specfile, without being
		    # confused by the existing contents of the target
		    # directory.  Without this, pax would complain "file
		    # would overwrite itself" for already-existing
		    # device nodes.
		    tmpdir=./tmp.$$
		    mkdir "${tmpdir}" || die "can't create temporary directory"
		    cd "${tmpdir}" || die "can't cd to temporary directory"
		    "${TOOL_PAX}" -r -w -M -pe ..
		    status=$?
		    cd .. # back to where we started
		    rmdir "${tmpdir}"
		    exit $status
		)
	else
		wrap_makedev $makedev ${1+"$@"}
	fi
}

#
# functions available to create nodes:
#
# mkdev name [b|c] major minor [mode{=600} [gid{=0} [uid{=0}]]]
#	create device node `name' with the appropriate permissions
#
# lndev src target
#	create a symlink from src to target
#
# makedir dir mode
#	create directory with appropriate mode
#

mkdev()
{
	if [ -n "$count_nodes" ]; then
		count_nodes=$((count_nodes + 1))
		return
	fi
	if $do_specfile; then
		case $2 in
		b)	type=block ;;
		c)	type=char ;;
		esac
		echo "./$1 type=${type} device=netbsd,$3,$4 mode=${5:-600} gid=${6:-$g_wheel} uid=${7:-$u_root}"
	else
		${MKNOD} -m ${5:-600} -g \#${6:-$g_wheel} -u \#${7:-$u_root} $1 $2 $3 $4
	fi
}

lndev()
{
	if [ -n "$count_nodes" ]; then
		count_nodes=$((count_nodes + 1))
		return
	fi
	if $do_specfile; then
		echo "./$2 type=link link=$1 mode=0700 gid=$g_wheel uid=$u_root"
	else
		ln -f -s $1 $2
	fi
}

makedir()
{
	if [ -n "$count_nodes" ]; then
		count_nodes=$((count_nodes + 1))
		return
	fi
	if $do_specfile; then
		echo "./$1 type=dir mode=$2 gid=$g_wheel uid=$u_root"
	else
		nooutput -2 mkdir $1
		chmod $2 $1
	fi
}

warn()
{
	echo 1>&2 "$0: $*"
}

die()
{
	echo 1>&2 "$0: $*"
	exit 1
}

# makedev special [...]
#	the main loop
#
makedev()
{

for i
do

case $i in

%MD_DEVICES%

all)
	makedev all_md
	makedev std fd ptm pty0 pty1 pty2 pty3
	makedev ccd0 ccd1 ccd2 ccd3
	makedev cgd0 cgd1 cgd2 cgd3
	makedev fss0 fss1 fss2 fss3
	makedev md0 md1
	makedev raid0 raid1 raid2 raid3 raid4 raid5 raid6 raid7
	makedev vnd0 vnd1 vnd2 vnd3
	makedev bpf
	makedev tun0 tun1 tun2 tun3
	makedev ipl pf crypto random
	makedev lockstat clockctl cpuctl
	makedev atabus0 atabus1 atabus2 atabus3
	makedev tap tap0 tap1 tap2 tap3
	makedev gpio gpio0 gpio1 gpio2 gpio3 gpio4 gpio5 gpio6 gpio7
	makedev pad pad0 pad1 pad2 pad3
	makedev bthub
	makedev putter
	makedev drvctl
	makedev video
	makedev drm0
	makedev altmem
	makedev zfs
	makedev local # do this last
	;;

init)
	# unless overridden by MD entry, this is equal to 'all'
	makedev all
	;;

%MI_DEVICES_BEGIN%
audio)
	makedev audio0 audio1 audio2 audio3
	makedev hdaudio0 hdaudio1 hdaudio2 hdaudio3
	lndev sound0 sound
	lndev audio0 audio
	lndev mixer0 mixer
	lndev audioctl0 audioctl
	;;

gpio)
	makedev gpio0 gpio1 gpio2 gpio3 gpio4 gpio5 gpio6 gpio7
	lndev gpio0 gpio
	;;

pad)
	makedev pad0 pad1 pad2 pad3
	lndev pad0 pad
	;;

radio)
	makedev radio0 radio1
	lndev radio0 radio
	;;

video)
	makedev video0 video1 video2 video3
	;;

altmem)
	makedev altmem0 altmem1
	;;

ramdisk)
	makedev floppy md0
	;;

usbs)
	makedev usb usb0 usb1 usb2 usb3 usb4 usb5 usb6 usb7
	makedev uhid0 uhid1 uhid2 uhid3
	makedev ulpt0 ulpt1
	makedev ttyU0 ttyU1
	makedev ttyY0 ttyY1
	makedev ttyHS0
	makedev urio0
	makedev uscanner0 uscanner1
	makedev utoppy0 utoppy1
	makedev ugen0
	;;

isdns)
	makedev isdn isdnctl isdnbchan0 isdnbchan1 isdntel0 isdntel1 isdnteld0 isdnteld1 isdntrc0 isdntrc1
	;;

std)
	mkdev		console c %cons_chr% 0	600
	mkdev		constty c %cons_chr% 1	600
	mkdev		drum	c %swap_chr% 0	640 $g_kmem
	mkdev		kmem	c %mem_chr% 1	640 $g_kmem
	mkdev		mem	c %mem_chr% 0	640 $g_kmem
	mkdev		null	c %mem_chr% 2	666
	mkdev		zero	c %mem_chr% 12	666
	mkdev		klog	c %log_chr% 0	600
	mkdev		ksyms	c %ksyms_chr% 0 444
	if ! $fdesc_mounted; then
		mkdev	tty	c %ctty_chr% 0		666
		mkdev	stdin	c %filedesc_chr% 0	666
		mkdev	stdout	c %filedesc_chr% 1	666
		mkdev	stderr	c %filedesc_chr% 2	666
	fi
	;;

usb)
	mkdev usb c %usb_chr% 255 444
	;;

usb*)
	unit=${i#usb}
	usb=usb$unit
	mkdev usb$unit c %usb_chr% $unit
	;;

uhid*)
	unit=${i#uhid}
	mkdev uhid$unit c %uhid_chr% $unit 666
	;;

ulpt*)
	unit=${i#ulpt}
	mkdev ulpt$unit c %ulpt_chr% $unit
	mkdev ulpn$unit c %ulpt_chr% $(($unit + 64))
	;;

urio*)
	unit=${i#urio}
	mkdev urio$unit c %urio_chr% $unit 666
	;;

uscanner*)
	unit=${i#uscanner}
	mkdev uscanner$unit c %uscanner_chr% $unit
	;;

utoppy*)
	unit=${i#utoppy}
	mkdev utoppy$unit c %utoppy_chr% $unit
	;;

ttyHS*)
	unit=${i#ttyHS}
	for j in 00 01 02 03 04 05 06 07 08 09 10
	do
		base=$(($unit * 16 + ${j#0}))
		mkdev ttyHS$unit.$j c %uhso_chr% $(($base + $dialin  )) "" "" $u_uucp
		mkdev dtyHS$unit.$j c %uhso_chr% $(($base + $dialout )) "" "" $u_uucp
		mkdev ctyHS$unit.$j c %uhso_chr% $(($base + $callunit)) "" "" $u_uucp
	done
	;;

ttyY*)
	unit=${i#ttyY}
	mkdev ttyY$unit c %ucycom_chr% $(($unit + $dialin  )) "" "" $u_uucp
	mkdev dtyY$unit c %ucycom_chr% $(($unit + $dialout )) "" "" $u_uucp
	mkdev ctyY$unit c %ucycom_chr% $(($unit + $callunit)) "" "" $u_uucp
	;;

ttyU*)
	unit=${i#ttyU}
	mkdev ttyU$unit c %ucom_chr% $(($unit + $dialin	 )) "" "" $u_uucp
	mkdev dtyU$unit c %ucom_chr% $(($unit + $dialout )) "" "" $u_uucp
	mkdev ctyU$unit c %ucom_chr% $(($unit + $callunit)) "" "" $u_uucp
	;;

ugen*)
	unit=${i#ugen}
	for j in 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15
	do
		mkdev ugen$unit.$j c %ugen_chr% $(($unit * 16 + ${j#0}))
	done
	;;

wscons)
	makedev ttyE0 ttyE1 ttyE2 ttyE3 ttyE4 ttyE5 ttyE6 ttyE7
	makedev wsmouse0 wsmouse1 wsmouse2 wsmouse3
	makedev wskbd0 wskbd1 wskbd2 wskbd3
	makedev wsmux0 wsmux1 wsmux2 wsmux3
	makedev wsmouse wskbd
	makedev ttyEcfg ttyEstat
	makedev wsfont
	;;

wsmouse)
	mkdev wsmouse c %wsmux_chr% 0
	;;

wskbd)
	mkdev wskbd c %wsmux_chr% 1
	;;

wsmux*)
	unit=${i#wsmux}
	mkdev wsmux$unit    c %wsmux_chr% $unit
	mkdev wsmuxctl$unit c %wsmux_chr% $(($unit + 128)) 200
	;;

xenevt)
	mkdev xenevt c %xenevt_chr% 0
	;;

xsd_kva)
	mkdev xsd_kva c %xenevt_chr% 1
	;;

xencons)
	mkdev xencons c %xencons_chr% 0
	;;

ttyEstat)
	mkdev ttyEstat c %wsdisplay_chr% 254
	;;

ttyEcfg)
	mkdev ttyEcfg c %wsdisplay_chr% 255
	;;

ttyE*)
	unit=${i#ttyE}
	mkdev ttyE$unit c %wsdisplay_chr% $unit
	;;

wsmouse*)
	unit=${i#wsmouse}
	mkdev wsmouse$unit c %wsmouse_chr% $unit
	;;

wskbd*)
	unit=${i#wskbd}
	mkdev wskbd$unit c %wskbd_chr% $unit
	;;

fd)
	if ! $fdesc_mounted; then
		makedir fd 755
		n=0
		while [ $n -lt 64 ]
		do
			mkdev fd/$n c %filedesc_chr% $n 666
			n=$(($n + 1))
		done
	fi
	;;

wt*)
	case $i in
	wt*) name=wt;  unit=${i#wt};	chr=%wt_chr%;	blk=%wt_blk%;;
	esac
	for sub in $unit $(($unit+8)) $(($unit+16))
	do
		mkdev $name$sub		b $blk $(($sub + 0)) 660 $g_operator
		mkdev n$name$sub	b $blk $(($sub + 4)) 660 $g_operator
		mkdev r$name$sub	c $chr $(($sub + 0)) 660 $g_operator
		mkdev nr$name$sub	c $chr $(($sub + 4)) 660 $g_operator
	done
	;;

md*)
	makedisk_minimal md ${i#md} %md_blk% %md_chr%
	;;

fss*)
	case $i in
	fss*) name=fss; unit=${i#fss};	blk=%fss_blk%;	chr=%fss_chr%
	esac
	mkdev $name$unit	b $blk $unit 660 $g_operator
	mkdev r$name$unit	c $chr $unit 660 $g_operator
	;;

ss*)
	case $i in
	ss*) name=ss;	unit=${i#ss};	chr=%ss_chr%;;
	esac
	mkdev $name$unit	c $chr $(($unit * 16 + 0)) 640 $g_operator
	mkdev n$name$unit	c $chr $(($unit * 16 + 1)) 640 $g_operator
	mkdev en$name$unit	c $chr $(($unit * 16 + 3)) 640 $g_operator
	;;

ccd*|cgd*|raid*|vnd*)
	case $i in
	ccd*)	name=ccd;	unit=${i#ccd};	blk=%ccd_blk%;	chr=%ccd_chr%;;
	cgd*)	name=cgd;	unit=${i#cgd};	blk=%cgd_blk%;	chr=%cgd_chr%;;
	raid*)	name=raid;	unit=${i#raid}; blk=%raid_blk%; chr=%raid_chr%;;
	vnd*)	name=vnd;	unit=${i#vnd};	blk=%vnd_blk%;	chr=%vnd_chr%;;
	esac
	%MKDISK% $name $unit $blk $chr
	;;

sd*)
	name=sd; unit=${i#sd};	blk=%sd_blk%;	chr=%sd_chr%
	%MKDISK% $name $unit $blk $chr
	;;

wd*)
	name=wd; unit=${i#wd}; blk=%wd_blk%; chr=%wd_chr%
	%MKDISK% $name $unit $blk $chr
	;;

fd*)
	name=fd; unit=${i#fd}; blk=%fd_blk%; chr=%fd_chr%
	%MKDISK% $name $unit $blk $chr
	;;

ld*)
	name=ld; unit=${i#ld}; blk=%ld_blk%; chr=%ld_chr%
	%MKDISK% $name $unit $blk $chr
	;;

altmem*)
	name=altmem; unit=${i#altmem}; blk=%altmem_blk%; chr=%altmem_chr%
	%MKDISK% $name $unit $blk $chr
	;;

bio)
	mkdev bio c %bio_chr% 0
	;;

ed*)
	name=ed; unit=${i#ed}; blk=%ed_blk%; chr=%ed_chr%
	%MKDISK% $name $unit $blk $chr
	;;

ofdisk*)
	name=ofdisk; unit=${i#ofdisk}; blk=%ofdisk_blk%; chr=%ofdisk_chr%
	%MKDISK% $name $unit $blk $chr
	;;

xbd*)
	name=xbd; unit=${i#xbd}; blk=%xbd_blk%; chr=%xbd_chr%
	%MKDISK% $name $unit $blk $chr
	;;

dk*)
	name=dk; unit=${i#dk}; blk=%dk_blk%; chr=%dk_chr%
	minor=0
	while [ $minor -le ${i#dk} ]
	do
		mkdev r$name$minor c $chr $minor 0640 $g_operator
		mkdev $name$minor b $blk  $minor 0640 $g_operator
		minor=$(($minor + 1))
	done
	;;

ttyCY*)
	name=tyCY; chr=%cy_chr%; off=32
	unit=${i#t${name}}
	minor=$(($unit * $off))
	eminor=$(($minor + $off))
	while [ $minor -lt $eminor ]
	do
		nminor=000$minor
		nminor=${nminor#${nminor%???}}
		mkdev t$name$nminor c $chr $(($minor + $dialin )) "" "" $u_uucp
		mkdev d$name$nminor c $chr $(($minor + $dialout)) "" "" $u_uucp
		minor=$(($minor + 1))
	done
	;;

ttyCZ*)
	name=tyCZ; chr=%cz_chr%; off=64
	unit=${i#t${name}}
	minor=$(($unit * $off))
	eminor=$(($minor + $off))
	while [ $minor -lt $eminor ]
	do
		nminor=0000$minor
		nminor=${nminor#${nminor%????}}
		mkdev t$name$nminor c $chr $(($minor + $dialin )) "" "" $u_uucp
		mkdev d$name$nminor c $chr $(($minor + $dialout)) "" "" $u_uucp
		minor=$(($minor + 1))
	done
	;;


tty[0-9]|tty0[0-9])
	# some archs have built-in zstty (major %zstty_chr%) instead
	# of NS16550; create ttyZ* and hardlink as [dt]ty0*; this
	# needs to be before com entry, for archs which have both
	unit=${i#tty}
	unit=$(($unit + 0))
	makedev ttyZ${unit}
	lndev ttyZ$unit tty0${unit}
	lndev dtyZ$unit dty0${unit}
	;;

tty0*|tty1*|tty[0-9])
	unit=${i#tty}
	ounit=00$unit
	ounit=${ounit#${ounit%??}}
	mkdev tty$ounit c %com_chr% $(($unit + $dialin )) "" "" $u_uucp
	mkdev dty$ounit c %com_chr% $(($unit + $dialout)) "" "" $u_uucp
	;;

ttyC*)
		# some archs call com_chr ttyC traditionally
	unit=${i#ttyC}; name=ttyC; dname=dtyC; chr=%com_chr%
	mkdev  $name$unit c $chr $(($unit + $dialin )) "" "" $u_uucp
	mkdev $dname$unit c $chr $(($unit + $dialout)) "" "" $u_uucp
	;;

ttyh*)
	unit=${i#ttyh}; name=ttyh; dname=dtyh; chr=%sabtty_chr%
	mkdev  $name$unit c $chr $(($unit + $dialin )) "" "" $u_uucp
	mkdev $dname$unit c $chr $(($unit + $dialout)) "" "" $u_uucp
	;;

ttyTX*)
	unit=${i#ttyTX}; name=ttyTX0; dname=dtyTX0; chr=%txcom_chr%
	mkdev  $name$unit c $chr $(($unit + $dialin )) "" "" $u_uucp
	mkdev $dname$unit c $chr $(($unit + $dialout)) "" "" $u_uucp
	;;

ttyZ*)
	unit=${i#ttyZ}; name=ttyZ; dname=dtyZ; chr=%zstty_chr%
	mkdev  $name$unit c $chr $(($unit + $dialin )) "" "" $u_uucp
	mkdev $dname$unit c $chr $(($unit + $dialout)) "" "" $u_uucp
	;;

opty)
	for j in 0 1 2 3 4 5 6 7 8 9 a b c d e f
	do
		case $j in
		[0-9])	jn=$j ;;
		a)	jn=10 ;;
		b)	jn=11 ;;
		c)	jn=12 ;;
		d)	jn=13 ;;
		e)	jn=14 ;;
		f)	jn=15 ;;
		esac
		mkdev ttyp$j c %pts_chr% $jn 666
		mkdev ptyp$j c %ptc_chr% $jn 666
	done
	;;

pty*)
	class=${i#pty}
	d1="p q r s t u v w x y z P Q R S T"
	if [ "$class" -ge 64 ]
	then
		warn "$i: pty unit must be between 0 and 63"
		continue
	elif [ "$class" -lt 16 ]
	then
		offset=0
		mult=0
		d2="0 1 2 3 4 5 6 7 8 9 a b c d e f"
	else
		class=$(($class - 16))
		offset=256
		mult=2
		d2="g h i j k l m n o p q r s t u v w x y z A B C D E F G H I J K L M N O P Q R S T U V W X Y Z"
	fi
	start=$(($class * 16))
	set -- $d2
	nt=$#
	s1=$(($start / $nt))
	set -- $d1
	shift $s1
	t1=$1
	if [ "$t1" = v ]; then
		warn "$i: pty unit conflicts with console ttyv0 device"
		continue
	fi
	s2=$(($start % ($nt - $s1 * $mult)))
	set -- $d2
	shift $s2
	t2=$1
	unit=$(($start + $offset - $s1 * $mult))
	end=$(($unit + 16))
	while [ "$unit" -lt "$end" ]
	do
		mkdev tty$t1$t2 c %pts_chr% $unit 666
		mkdev pty$t1$t2 c %ptc_chr% $unit 666
		shift
		t2=$1
		if [ -z "$t2" ]
		then
			break
		fi
		unit=$(($unit + 1))
	done
	;;

stic*)
	unit=${i#stic}
	mkdev stic$unit c %stic_chr% $unit
	;;

st*)
	case $i in
	st*) name=st;	unit=${i#st};	chr=%st_chr%;	blk=%st_blk%;;
	esac
	mkdev $name$unit	b $blk $(($unit * 16 + 0)) 660 $g_operator
	mkdev n$name$unit	b $blk $(($unit * 16 + 1)) 660 $g_operator
	mkdev e$name$unit	b $blk $(($unit * 16 + 2)) 660 $g_operator
	mkdev en$name$unit	b $blk $(($unit * 16 + 3)) 660 $g_operator
	mkdev r$name$unit	c $chr $(($unit * 16 + 0)) 660 $g_operator
	mkdev nr$name$unit	c $chr $(($unit * 16 + 1)) 660 $g_operator
	mkdev er$name$unit	c $chr $(($unit * 16 + 2)) 660 $g_operator
	mkdev enr$name$unit	c $chr $(($unit * 16 + 3)) 660 $g_operator
	;;

ses*|ch*|uk*)
	case $i in
	ch*)	name=ch;	unit=${i#ch};	chr=%ch_chr%;;
	uk*)	name=uk;	unit=${i#uk};	chr=%uk_chr%;;
	ses*)	name=ses;	unit=${i#ses};	chr=%ses_chr%;;
	esac
	mkdev $name$unit c $chr $unit 640 $g_operator
	;;

cd*)
	makedisk_minimal cd ${i#cd} %cd_blk% %cd_chr%
	;;

mcd*)
	makedisk_minimal mcd ${i#mcd} %mcd_blk% %mcd_chr%
	;;

gdrom*)
	makedisk_minimal gdrom ${i#gdrom} %gdrom_blk% %gdrom_chr%
	;;

lpt*|lpa*)
	case $i in
	lpt*) name=lpt; unit=${i#lpt};	chr=%lpt_chr%;	flags=0;;
	lpa*) name=lpa; unit=${i#lpa};	chr=%lpt_chr%;	flags=128;;
	esac
	mkdev $name$unit c $chr $(($unit + $flags))
	mkdev lpt${unit}ctl c $chr $(($unit + 256))
	;;

bpf)
	mkdev bpf	c %bpf_chr% 0
	lndev bpf bpf0
	;;

bthub)
	mkdev bthub c %bthub_chr% 0
	;;

tun*)
	unit=${i#tun}
	mkdev tun$unit c %tun_chr% $unit
	;;

joy*)
	unit=${i#joy}
	mkdev joy$unit c %joy_chr% $unit
	;;

ipl)
	mkdev ipl	c %ipl_chr% 0
	mkdev ipnat	c %ipl_chr% 1
	mkdev ipstate	c %ipl_chr% 2
	mkdev ipauth	c %ipl_chr% 3
	mkdev ipsync	c %ipl_chr% 4
	mkdev ipscan	c %ipl_chr% 5
	mkdev iplookup	c %ipl_chr% 6
	;;

pf)
	mkdev pf c %pf_chr% 0
	;;

crypto)
	mkdev crypto c %crypto_chr% 0 666
	;;

cmos)
	mkdev cmos c %cmos_chr% 0 644
	;;

speaker)
	mkdev speaker c %spkr_chr% 0
	;;

lockstat)
	mkdev lockstat c %lockstat_chr% 0
	;;

cpuctl)
	mkdev cpuctl c %cpuctl_chr% 0 666
	;;

audio*)
	unit=${i#audio}
	audio=audio$unit
	sound=sound$unit
	mixer=mixer$unit
	audioctl=audioctl$unit
	: ${unit:-0}
	mkdev $sound	c %audio_chr% $(($unit + 0))	666
	mkdev $audio	c %audio_chr% $(($unit + 128))	666
	mkdev $mixer	c %audio_chr% $(($unit + 16))	666
	mkdev $audioctl c %audio_chr% $(($unit + 192))	666
	;;

hdaudio*)
	unit=${i#hdaudio}
	mkdev hdaudio$unit c %hdaudio_chr% $unit 644
	;;

gpio*)
	unit=${i#gpio}
	mkdev gpio$unit c %gpio_chr% $unit 644
	;;

rmidi*)
	unit=${i#rmidi}
	mkdev rmidi$unit c %midi_chr% $unit 666
	;;

music*)
	unit=${i#music}
	: ${unit:-0}
	mkdev music$unit     c %sequencer_chr% $(($unit + 0))	666
	mkdev sequencer$unit c %sequencer_chr% $(($unit + 128)) 666
	;;

radio*)
	unit=${i#radio}
	: ${unit:-0}
	mkdev radio$unit c %radio_chr% $unit 666
	;;

video*)
	unit=${i#video}
	: ${unit:-0}
	mkdev video$unit c %video_chr% $unit 666
	;;

amr*)
	unit=${i#amr}
	mkdev amr$unit c %amr_chr% $unit
	;;

apm)
	mkdev apm	c %apm_chr% 0 644
	mkdev apmctl	c %apm_chr% 8 644
	;;

apm)
		# hpcmips uses `apmdev_chr' instead of `apm_chr'
	mkdev apm	c %apmdev_chr% 0 644
	mkdev apmctl	c %apmdev_chr% 8 644
	;;

satlink*)
	unit=${i#satlink}
	mkdev satlink$unit c %satlink_chr% $unit 444
	;;

random)
	mkdev random	c %rnd_chr% 0 444
	mkdev urandom	c %rnd_chr% 1 644
	;;

cfs)
	makedev cfs0
	;;

cfs*)
	unit=${i#cfs}
	mkdev cfs$unit c %vcoda_chr% $unit
	;;

sysmon)
	mkdev sysmon	c %sysmon_chr% 0 644
	mkdev watchdog	c %sysmon_chr% 1 644
	mkdev power	c %sysmon_chr% 2 640
	;;

scsibus*)
	unit=${i#scsibus}
	mkdev scsibus$unit c %scsibus_chr% $unit 644
	;;

bktr)
	makedev bktr0 bktr1
	lndev	bktr0	bktr
	lndev	tuner0	tuner
	lndev	vbi0	vbi
	;;

bktr*)
	unit=${i#bktr}
	mkdev bktr$unit		c %bktr_chr% $(($unit + 0))	444
	mkdev tuner$unit	c %bktr_chr% $(($unit + 16))	444
	mkdev vbi$unit		c %bktr_chr% $(($unit + 32))	444
	;;

io)
	mkdev		io	c %mem_chr% 14	600
	;;

iop*)
	unit=${i#iop}
	mkdev iop$unit c %iop_chr% $unit
	;;

mlx*)
	unit=${i#mlx}
	mkdev mlx$unit c %mlx_chr% $unit
	;;

mly*)
	unit=${i#mly}
	mkdev mly$unit c %mly_chr% $unit
	;;

twa*)
	unit=${i#twa}
	mkdev twa$unit c %twa_chr% $unit
	;;

twe*)
	unit=${i#twe}
	mkdev twe$unit c %twe_chr% $unit
	;;

icp*)
	unit=${i#icp}
	mkdev icp$unit c %icp_chr% $unit
	;;

agp*)
	unit=${i#agp}
	mkdev agp$unit c %agp_chr% $unit 644
	if [ "$unit" = "0" ]; then
		lndev agp$unit agpgart
	fi
	;;

pci*)
	unit=${i#pci}
	mkdev pci$unit c %pci_chr% $unit 644
	;;

dpti*)
	unit=${i#dpti}
	mkdev dpti$unit c %dpti_chr% $unit
	;;

dpt*)
	unit=${i#dpt}
	mkdev dpt$unit c %dpt_chr% $unit
	;;

altq)
	makedir altq 755
	unit=0
	for dev in altq cbq wfq afm fifoq red rio localq hfsc cdnr blue priq
	do
		mkdev altq/$dev c %altq_chr% $unit 644
		unit=$(($unit + 1))
	done
	;;

isdn)
	mkdev isdn c %isdn_chr% 0
	;;

isdnctl)
	mkdev isdnctl c %isdnctl_chr% 0
	;;

isdnbchan*)
	unit=${i#isdnbchan}
	mkdev isdnbchan$unit c %isdnbchan_chr% $unit
	;;

isdnteld*)
	unit=${i#isdnteld}
	mkdev isdnteld$unit c %isdntel_chr% $(($unit + 64))
	;;

isdntel*)
	unit=${i#isdntel}
	mkdev isdntel$unit c %isdntel_chr% $unit
	;;

isdntrc*)
	unit=${i#isdntrc}
	mkdev isdntrc$unit c %isdntrc_chr% $unit
	;;

vmegen)
	makedev vmegen0 vmegen1 vmegen2 vmegen3
	;;

vmegen*)
	unit=${i#vmegen}
	mkdev vmegen$unit c %vmegeneric_chr% $(($unit * 16 + 0))
	;;

wsfont)
	mkdev wsfont c %wsfont_chr% 0
	;;

cir*)
	unit=${i#cir}
	mkdev cir$unit c %cir_chr% $unit 666
	;;

irframe*)
	unit=${i#irframe}
	mkdev irframe$unit c %irframe_chr% $unit
	;;

fcom*)
	unit=${i#fcom}
	mkdev fcom$unit c %fcom_chr% $unit "" "" $u_uucp
	;;

openfirm)
	mkdev openfirm c %openfirm_chr% 0 444
	;;

pad*)
	unit=${i#pad}
	mkdev pad$unit c %pad_chr% $unit 444
	;;

nvram)
	mkdev nvram c %nvram_chr% 0 644
	;;

rtc)
	mkdev rtc c %rtc_chr% 0 644
	;;

clockctl)
	mkdev clockctl c %clockctl_chr% 0 660 $g_ntpd
	;;

nsmb)
	makedev nsmb0 nsmb1 nsmb2 nsmb3
	;;

nsmb*)
	unit=${i#nsmb}
	mkdev nsmb$unit c %nsmb_chr% $unit 644
	;;

kttcp)
	mkdev kttcp c %kttcp_chr% 0
	;;

dmoverio)
	mkdev dmoverio c %dmoverio_chr% 0 644
	;;

veriexec)
	mkdev veriexec c %veriexec_chr% 0 600
	;;

ttyv*)
	unit=${i#ttyv}
	mkdev ttyv$unit c %pc_chr% $unit
	;;

# arm, acorn32
ttyv*)
	unit=${i#ttyv}
	mkdev ttyv$unit c %physcon_chr% $unit
	;;

arcpp*)
	unit=${i#arcpp}
	mkdev arcpp$unit c %arcpp_chr% $unit
	;;

par*)
	unit=${i#par}
	case $unit in
	0)
		mkdev par$unit c %par_chr% $unit
		;;
	*)
		warn "bad unit for par in: $i"
		;;
	esac
	;;

cpi*)
	unit=${i#cpi}
	mkdev cpi$unit c %cpi_chr% $unit
	;;

ite*|ttye*)
	case $i in
	ite*)	unit=${i#ite};;
	ttye*)	unit=${i#ttye};;
	esac
	mkdev ttye$unit c %ite_chr% $unit
	;;

pms*)
	unit=${i#pms}
	mkdev pms$unit c %opms_chr% $unit
	;;

qms*)
	unit=${i#qms}
	mkdev qms$unit c %qms_chr% $unit
	;;

lms*)
	unit=${i#lms}
	mkdev lms$unit c %lms_chr% $unit
	;;

mms*)
	unit=${i#mms}
	mkdev mms$unit c %mms_chr% $unit
	;;

mouse-*)
	case $i in
	mouse-pms*) name=pms ;;
	mouse-qms*) name=qms ;;
	esac
	unit=${i#mouse-${name}}
	lndev $name$unit mouse
	;;

kbd)
	mkdev kbd c %kbd_chr% 0
	;;

kbdctl)
	mkdev kbdctl c %kbd_chr% 1
	;;

vidcconsole0)
	mkdev vidcconsole0 c %vidcconsole_chr% 0 640
	;;

view*)
	unit=${i#view}
	mkdev view$unit c %view_chr% $unit 666
	;;

mouse*)
	unit=${i#mouse}
	case $unit in
	0|1)
		mkdev mouse$unit c %ms_chr% $unit 666
		if [ $unit = 0 ]; then
			lndev mouse$unit mouse
		fi
		;;
	*)
		warn "bad unit for mouse in: $i"
		;;
	esac
	;;

panel)
	mkdev panel0 c %panel_chr% 0 660
	;;

tslcd)
	mkdev tslcd0 c %tslcd_chr% 0 660
	;;

ipty)
	mkdev ttyp0 c %pts_chr% 0 666
	mkdev ttyp1 c %pts_chr% 1 666
	mkdev ptyp0 c %ptc_chr% 0 666
	mkdev ptyp1 c %ptc_chr% 1 666
	;;

ptm)
	makedir pts 755
	mkdev ptmx c %ptm_chr% 0 666
	mkdev ptm c %ptm_chr% 1 666
	;;

grf*)
	unit=${i#grf}
	mkdev grf$unit c %grf_chr% $unit 666
	;;

etvme)
	mkdev etvme c %et_chr% 0
	;;

leo*)
	unit=${i#leo}
	mkdev leo$unit c %leo_chr% $unit
	;;

scif*)
	unit=${i#scif}
	mkdev scif$unit c %scif_chr% $(($unit + $dialin )) "" "" $u_uucp
	mkdev dscif$unit c %scif_chr% $(($unit + $dialout)) "" "" $u_uucp
	;;

sci*)
	unit=${i#sci}
	mkdev sci$unit c %sci_chr% $(($unit + $dialin )) "" "" $u_uucp
	mkdev dsci$unit c %sci_chr% $(($unit + $dialout)) "" "" $u_uucp
	;;

maple*)
	case $i in
	mapleA*) name="mapleA"; unit=0;;
	mapleB*) name="mapleB"; unit=1;;
	mapleC*) name="mapleC"; unit=2;;
	mapleD*) name="mapleD"; unit=3;;
	esac
	subunit=${i#$name}
	mkdev $name$subunit c %maple_chr% $(($unit * 8 + 0$subunit))
	;;

mmem*)
	unit=${i#mmem}
	for pt in 0	# 1 2 3 4 ... 255
	do
#		mkdev mmem${unit}.${pt}a  b %mmem_blk% $(($unit * 4096 + $pt * 16 + 0)) 640 $g_operator
		mkdev mmem${unit}.${pt}c  b %mmem_blk% $(($unit * 4096 + $pt * 16 + 2)) 640 $g_operator
#		mkdev rmmem${unit}.${pt}a c %mmem_chr% $(($unit * 4096 + $pt * 16 + 0)) 640 $g_operator
		mkdev rmmem${unit}.${pt}c c %mmem_chr% $(($unit * 4096 + $pt * 16 + 2)) 640 $g_operator
	done
	;;

mlcd*)
	unit=${i#mlcd}
	for pt in 0	# 1 2 3 4 ... 255
	do
		mkdev mlcd${unit}.${pt} c %mlcd_chr% $(($unit * 256 + $pt)) 640 $g_operator
	done
	;;

ixpcom*)
	unit=${i#ixpcom}
	mkdev ixpcom$unit c %ixpcom_chr% $unit "" "" $u_uucp
	;;

epcom*)
	unit=${i#epcom}
	mkdev epcom$unit c %epcom_chr% $unit "" "" $u_uucp
	;;

ucbsnd)
	mkdev ucbsnd c %ucbsnd_chr% 0 666
	;;

adb)
	mkdev adb c %aed_chr% 0 666
	;;

asc*)
	unit=${i#asc}
	mkdev asc$unit c %asc_chr% $unit 666
	;;

bwtwo*)
	unit=${i#bwtwo}
	mkdev bwtwo$unit c %bwtwo_chr% $unit 666
	;;

cgtwo*)
	unit=${i#cgtwo}
	mkdev cgtwo$unit c %cgtwo_chr% $unit 666
	;;

cgthree*)
	unit=${i#cgthree}
	mkdev cgthree$unit c %cgthree_chr% $unit 666
	;;

cgfour*)
	unit=${i#cgfour}
	mkdev cgfour$unit c %cgfour_chr% $unit 666
	;;

cgsix*)
	unit=${i#cgsix}
	mkdev cgsix$unit c %cgsix_chr% $unit 666
	;;

cgeight*)
	unit=${i#cgeight}
	mkdev cgeight$unit c %cgeight_chr% $unit 666
	;;

tcx*)
	unit=${i#tcx}
	mkdev tcx$unit c %tcx_chr% $unit 666
	;;

xd*|xy*)
	case $i in
	xd*)	name=xd; unit=${i#xd}; blk=%xd_blk%;	chr=%xd_chr%;;
	xy*)	name=xy; unit=${i#xy}; blk=%xy_blk%;	chr=%xy_chr%;;
	esac
	%MKDISK% $name $unit $blk $chr
	;;

magma*)
	unit=${i#magma}
	if [ 0$unit -gt 3 ]; then
		warn "bad unit for $i: $unit"
		break
	fi
	for j in 0 1 2 3 4 5 6 7 8 9 a b c d e f
	do
		case $j in
		[0-9])	jn=$j ;;
		a)	jn=10 ;;
		b)	jn=11 ;;
		c)	jn=12 ;;
		d)	jn=13 ;;
		e)	jn=14 ;;
		f)	jn=15 ;;
		esac
		mkdev tty$unit$j c %mtty_chr% $(($unit * 64 + $jn))
	done
	mkdev bpp${unit}0 c %mbpp_chr% $(($unit * 64 + 0))
	mkdev bpp${unit}1 c %mbpp_chr% $(($unit * 64 + 1))
	;;

clcd*)
	unit=${i#clcd}
	if [ 0$unit -gt 7 ]; then
		warn "bad unit for $i: $unit"
		break
	fi
	for j in 0 1 2 3 4 5 6 7
	do
		mkdev ttyA$unit$j c %clcd_chr% $(($unit * 8 + $j + $dialin)) "" "" $u_uucp
		mkdev dtyA$unit$j c %clcd_chr% $(($unit * 8 + $j + $dialout)) "" "" $u_uucp
	done
	;;

spif*)
	unit=${i#spif}
	if [ 0$unit -gt 3 ]; then
		warn "bad unit for $i: $unit"
		break
	fi
	for j in 0 1 2 3 4 5 6 7; do
		mkdev ttyS$unit$j c 102 $(($unit * 64 + $j)) "" "" $u_uucp
	done
	mkdev bppS${unit}0 c 103 $(($unit * 64 + 0))
	mkdev bppS${unit}1 c 103 $(($unit * 64 + 1))
	;;

bpp*)
	unit=${i#bpp}
	mkdev bpp$unit c %bpp_chr% $(($unit + 0))
	;;

tctrl*)
	unit=${i#tctrl}
	mkdev tctrl$unit c %tctrl_chr% $unit 666
	;;

bmd*)
	unit=${i#bmd}
	mkdev bmd${unit}a  b %bmd_blk% $(($unit * 8 + 0)) 640 $g_operator
	mkdev bmd${unit}c  b %bmd_blk% $(($unit * 8 + 2)) 640 $g_operator
	mkdev rbmd${unit}a c %bmd_chr% $(($unit * 8 + 0)) 640 $g_operator
	mkdev rbmd${unit}c c %bmd_chr% $(($unit * 8 + 2)) 640 $g_operator
	;;

sram)
	mkdev sram c %sram_chr% 0 644
	;;

pow*)
	unit=${i#pow}
	case $unit in
	0|1)
		mkdev pow${unit} c %pow_chr% ${unit} 644
		if [ $unit = 0 ]; then
			lndev pow${unit} pow
		fi
		;;
	*)
		warn "bad unit for pow in: $i"
		;;
	esac
	;;

ttyS*)
	unit=${i#ttyS}
	mkdev ttyS$unit c %sacom_chr% $(($unit + $dialin )) "" "" $u_uucp
	mkdev dtyS$unit c %sacom_chr% $(($unit + $dialout)) "" "" $u_uucp
	;;

atabus*)
	unit=${i#atabus}
	mkdev atabus$unit c %atabus_chr% $unit 644
	;;

drm*)
	unit=${i#drm}
	makedir dri 755
	mkdev dri/card$unit c %drm_chr% $unit 660
	;;

drvctl)
	mkdev drvctl c %drvctl_chr% 0 644
	;;

isv)
	mkdev isv c %isv_chr% 0 644
	;;

tap*)
	unit=${i#tap}
	case "$unit" in
	[0-9]*)
		mkdev tap${unit} c %tap_chr% ${unit} 600
		;;
	*)
		mkdev tap c %tap_chr% 0xfffff 600
		;;
	esac
	;;

fw*)
	unit=${i#fw}
	for j in 0 1 2 3
	do
		mkdev fw${unit}.${j} c %fw_chr% $((${unit} * 256 + ${j})) 660 ${g_operator}
		mkdev fwmem${unit}.${j} c %fw_chr% $((65536 + ${unit} * 256 + ${j})) 660 ${g_operator}
	done
	;;

# create putter device and symlinks for all subsystems using it
putter)
	mkdev putter c %putter_chr% 0 600
	mkdev pud c %putter_chr% 1 600
	lndev putter puffs
	;;

zfs)
	mkdev zfs c %zfs_chr% 0 600
	makedir zpool 755
	;;

midevend)
%MI_DEVICES_END%
local)
	if [ -f "$0.local" ]; then
		umask 0
		if [ -n "$count_nodes" ]; then
			count_nodes=$((count_nodes + \
			    $(linecount "$(sh "$0.local" $opts -s all)") ))
		else
			sh "$0.local" $opts all
		fi
		umask 077
	fi
	;;

*)
	warn "$i: unknown device"
	;;

esac
done

}


# three variants of disk partitions - max 8, max 16, max 16 with highpartoffset
# hack; only the one used by port is retained in final MAKEDEV script
# routine is called as:
# makedisk name unit blk chr
makedisk_p8()
{
	name="$1"; unit="$2"; blk="$3"; chr="$4"

	mkdev ${name}${unit}a	b $blk $(($unit * 8 + 0))	640 $g_operator
	mkdev ${name}${unit}b	b $blk $(($unit * 8 + 1))	640 $g_operator
	mkdev ${name}${unit}c	b $blk $(($unit * 8 + 2))	640 $g_operator
	mkdev ${name}${unit}d	b $blk $(($unit * 8 + 3))	640 $g_operator
	mkdev ${name}${unit}e	b $blk $(($unit * 8 + 4))	640 $g_operator
	mkdev ${name}${unit}f	b $blk $(($unit * 8 + 5))	640 $g_operator
	mkdev ${name}${unit}g	b $blk $(($unit * 8 + 6))	640 $g_operator
	mkdev ${name}${unit}h	b $blk $(($unit * 8 + 7))	640 $g_operator
	mkdev r${name}${unit}a	c $chr $(($unit * 8 + 0))	640 $g_operator
	mkdev r${name}${unit}b	c $chr $(($unit * 8 + 1))	640 $g_operator
	mkdev r${name}${unit}c	c $chr $(($unit * 8 + 2))	640 $g_operator
	mkdev r${name}${unit}d	c $chr $(($unit * 8 + 3))	640 $g_operator
	mkdev r${name}${unit}e	c $chr $(($unit * 8 + 4))	640 $g_operator
	mkdev r${name}${unit}f	c $chr $(($unit * 8 + 5))	640 $g_operator
	mkdev r${name}${unit}g	c $chr $(($unit * 8 + 6))	640 $g_operator
	mkdev r${name}${unit}h	c $chr $(($unit * 8 + 7))	640 $g_operator
}

makedisk_p16()
{
	name="$1"; unit="$2"; blk="$3"; chr="$4"

	mkdev ${name}${unit}a	b $blk $(($unit * 16 + 0))	640 $g_operator
	mkdev ${name}${unit}b	b $blk $(($unit * 16 + 1))	640 $g_operator
	mkdev ${name}${unit}c	b $blk $(($unit * 16 + 2))	640 $g_operator
	mkdev ${name}${unit}d	b $blk $(($unit * 16 + 3))	640 $g_operator
	mkdev ${name}${unit}e	b $blk $(($unit * 16 + 4))	640 $g_operator
	mkdev ${name}${unit}f	b $blk $(($unit * 16 + 5))	640 $g_operator
	mkdev ${name}${unit}g	b $blk $(($unit * 16 + 6))	640 $g_operator
	mkdev ${name}${unit}h	b $blk $(($unit * 16 + 7))	640 $g_operator
	mkdev ${name}${unit}i	b $blk $(($unit * 16 + 8))	640 $g_operator
	mkdev ${name}${unit}j	b $blk $(($unit * 16 + 9))	640 $g_operator
	mkdev ${name}${unit}k	b $blk $(($unit * 16 + 10))	640 $g_operator
	mkdev ${name}${unit}l	b $blk $(($unit * 16 + 11))	640 $g_operator
	mkdev ${name}${unit}m	b $blk $(($unit * 16 + 12))	640 $g_operator
	mkdev ${name}${unit}n	b $blk $(($unit * 16 + 13))	640 $g_operator
	mkdev ${name}${unit}o	b $blk $(($unit * 16 + 14))	640 $g_operator
	mkdev ${name}${unit}p	b $blk $(($unit * 16 + 15))	640 $g_operator
	mkdev r${name}${unit}a	c $chr $(($unit * 16 + 0))	640 $g_operator
	mkdev r${name}${unit}b	c $chr $(($unit * 16 + 1))	640 $g_operator
	mkdev r${name}${unit}c	c $chr $(($unit * 16 + 2))	640 $g_operator
	mkdev r${name}${unit}d	c $chr $(($unit * 16 + 3))	640 $g_operator
	mkdev r${name}${unit}e	c $chr $(($unit * 16 + 4))	640 $g_operator
	mkdev r${name}${unit}f	c $chr $(($unit * 16 + 5))	640 $g_operator
	mkdev r${name}${unit}g	c $chr $(($unit * 16 + 6))	640 $g_operator
	mkdev r${name}${unit}h	c $chr $(($unit * 16 + 7))	640 $g_operator
	mkdev r${name}${unit}i	c $chr $(($unit * 16 + 8))	640 $g_operator
	mkdev r${name}${unit}j	c $chr $(($unit * 16 + 9))	640 $g_operator
	mkdev r${name}${unit}k	c $chr $(($unit * 16 + 10))	640 $g_operator
	mkdev r${name}${unit}l	c $chr $(($unit * 16 + 11))	640 $g_operator
	mkdev r${name}${unit}m	c $chr $(($unit * 16 + 12))	640 $g_operator
	mkdev r${name}${unit}n	c $chr $(($unit * 16 + 13))	640 $g_operator
	mkdev r${name}${unit}o	c $chr $(($unit * 16 + 14))	640 $g_operator
	mkdev r${name}${unit}p	c $chr $(($unit * 16 + 15))	640 $g_operator
}

makedisk_p16high()
{
	ho=524280	# offset for partition 9 to 16
	name="$1"; unit="$2"; blk="$3"; chr="$4"

	mkdev ${name}${unit}a	b $blk $(($unit * 8 + 0))	640 $g_operator
	mkdev ${name}${unit}b	b $blk $(($unit * 8 + 1))	640 $g_operator
	mkdev ${name}${unit}c	b $blk $(($unit * 8 + 2))	640 $g_operator
	mkdev ${name}${unit}d	b $blk $(($unit * 8 + 3))	640 $g_operator
	mkdev ${name}${unit}e	b $blk $(($unit * 8 + 4))	640 $g_operator
	mkdev ${name}${unit}f	b $blk $(($unit * 8 + 5))	640 $g_operator
	mkdev ${name}${unit}g	b $blk $(($unit * 8 + 6))	640 $g_operator
	mkdev ${name}${unit}h	b $blk $(($unit * 8 + 7))	640 $g_operator
	mkdev ${name}${unit}i	b $blk $(($unit * 8 + $ho + 8)) 640 $g_operator
	mkdev ${name}${unit}j	b $blk $(($unit * 8 + $ho + 9)) 640 $g_operator
	mkdev ${name}${unit}k	b $blk $(($unit * 8 + $ho + 10)) 640 $g_operator
	mkdev ${name}${unit}l	b $blk $(($unit * 8 + $ho + 11)) 640 $g_operator
	mkdev ${name}${unit}m	b $blk $(($unit * 8 + $ho + 12)) 640 $g_operator
	mkdev ${name}${unit}n	b $blk $(($unit * 8 + $ho + 13)) 640 $g_operator
	mkdev ${name}${unit}o	b $blk $(($unit * 8 + $ho + 14)) 640 $g_operator
	mkdev ${name}${unit}p	b $blk $(($unit * 8 + $ho + 15)) 640 $g_operator
	mkdev r${name}${unit}a	c $chr $(($unit * 8 + 0))	640 $g_operator
	mkdev r${name}${unit}b	c $chr $(($unit * 8 + 1))	640 $g_operator
	mkdev r${name}${unit}c	c $chr $(($unit * 8 + 2))	640 $g_operator
	mkdev r${name}${unit}d	c $chr $(($unit * 8 + 3))	640 $g_operator
	mkdev r${name}${unit}e	c $chr $(($unit * 8 + 4))	640 $g_operator
	mkdev r${name}${unit}f	c $chr $(($unit * 8 + 5))	640 $g_operator
	mkdev r${name}${unit}g	c $chr $(($unit * 8 + 6))	640 $g_operator
	mkdev r${name}${unit}h	c $chr $(($unit * 8 + 7))	640 $g_operator
	mkdev r${name}${unit}i	c $chr $(($unit * 8 + $ho + 8)) 640 $g_operator
	mkdev r${name}${unit}j	c $chr $(($unit * 8 + $ho + 9)) 640 $g_operator
	mkdev r${name}${unit}k	c $chr $(($unit * 8 + $ho + 10)) 640 $g_operator
	mkdev r${name}${unit}l	c $chr $(($unit * 8 + $ho + 11)) 640 $g_operator
	mkdev r${name}${unit}m	c $chr $(($unit * 8 + $ho + 12)) 640 $g_operator
	mkdev r${name}${unit}n	c $chr $(($unit * 8 + $ho + 13)) 640 $g_operator
	mkdev r${name}${unit}o	c $chr $(($unit * 8 + $ho + 14)) 640 $g_operator
	mkdev r${name}${unit}p	c $chr $(($unit * 8 + $ho + 15)) 640 $g_operator
}

# make only the very few basic disk device nodes - 'a' partition
# and raw partition
makedisk_minimal()
{
	name=$1; unit=$2; blk=$3; chr=$4
	doff=%DISKMINOROFFSET%
	ro=%RAWDISK_OFF%
	rn=%RAWDISK_NAME%

	mkdev ${name}${unit}a	b $blk $(($unit * $doff + 0))	640 $g_operator
	mkdev ${name}${unit}$rn b $blk $(($unit * $doff + $ro)) 640 $g_operator
	mkdev r${name}${unit}a	c $chr $(($unit * $doff + 0))	640 $g_operator
	mkdev r${name}${unit}$rn c $chr $(($unit * $doff + $ro)) 640 $g_operator
}

# create_mfs_dev nodes
#	Create a memory file system for a given number of device nodes,
#	and mount it.  Attempts to use mount_tmpfs, or falls back to
#	mount_mfs.
#
#	If do_redirect, then also redirect output to the console.
#
create_mfs_dev()
{
	ndevnodes=${1-1200}
	dev_mountpoint=${PWD:-/dev}

	# Number of inodes is the specified number of device nodes, plus
	# a margin to allow for extra device nodes created later.
	ninode=$((ndevnodes * 11 / 10))
	# Add 2 reserved inodes (needed for both mfs and tmpfs), and round
	# up to a multiple of 32 (needed for mfs, not needed for tmpfs).
	ninode=$(( (ninode + 2 + 31) / 32 * 32 ))
	# Try tmpfs; if that fails try mfs.
	#
	# For tmpfs, allocate 16KB and 512 byte per node.
	# Actual requirements are much lower, but the size limit
	# is only intended to avoid accidental writing to /dev.
	fs_bytes=$((16384 + ninode * 512))
	if mount_tmpfs -s $fs_bytes -n $ninode -m 0755 \
		-o union tmpfs "$dev_mountpoint"
	then
		fstype=tmpfs
	else
		# This file system size calculation is exact for mount_mfs(8)
		# with 512-byte sectors.  40960 bytes (80 blocks) is the
		# minimum size allowed by mount_mfs.
		fs_bytes=$((8192 + 2 * 8192 + 4096 + ninode*512 + 8192))
		[ "$fs_bytes" -lt 40960 ] && fs_bytes=40960
		fs_blocks=$((fs_bytes/512))
		if mount_mfs -b 4096 -f 512 -s $fs_blocks -n $ninode -p 0755 \
		    -o union swap "$dev_mountpoint"
		then
			fstype=mfs
		else
			die "Failed to create memory file system"
		fi
	fi

	# Our current directory was in the lower file system; change it to
	# the newly mounted upper file system.
	cd "$dev_mountpoint"

	if $do_redirect; then
		# Redirect stdout and stderr to console
		mknod -m 600 -g 0 -u 0 temp_console c 0 0
		exec >temp_console 2>&1
		rm temp_console
	fi

	echo "Created $fstype $dev_mountpoint" \
		"($fs_bytes byte, $ninode inodes)"
}

#
# MAIN: If MAKEDEV_AS_LIBRARY is set, then we are being used as a
# function library, so just return.  Otherwise, do all the real work.
#
[ -n "${MAKEDEV_AS_LIBRARY}" ] && return
makedev_main makedev ${1+"$@"}