add minimal disktab, with comments only (derived from pmax one)

etc/etc.luna68k/disktab

@@ -0,0 +1,39 @@
+#	$NetBSD: disktab,v 1.1 2002/05/07 09:28:43 jdolecek Exp $
+#
+#	from: @(#)disktab	8.1 (Berkeley) 6/9/93
+#
+
+# Disk geometry and partition layout tables. 
+# Key:
+#	dt	controller type
+#	ty	type of disk (fixed, removeable, simulated)
+#	d[0-4]	drive-type-dependent parameters
+#	ns	#sectors/track
+#	nt	#tracks/cylinder
+#	nc	#cylinders/disk
+#	sc	#sectors/cylinder, nc*nt default
+#	su	#sectors/unit, sc*nc default
+#	se	sector size, DEV_BSIZE default
+#	rm	rpm, 3600 default
+#	sf	supports bad144-style bad sector forwarding
+#	sk	sector skew per track, default 0
+#	cs	sector skew per cylinder, default 0
+#	hs	headswitch time, default 0
+#	ts	one-cylinder seek time, default 0
+#	il	sector interleave (n:1), 1 default
+#	bs	boot block size, default BBSIZE
+#	sb	superblock size, default SBSIZE
+#	o[a-h]	partition offsets in sectors
+#	p[a-h]	partition sizes in sectors
+#	b[a-h]	partition block sizes in bytes
+#	f[a-h]	partition fragment sizes in bytes
+#	t[a-h]	partition types (filesystem, swap, etc)
+#	b[0-1]	primary and secondary bootstraps, optional
+#
+# All partition sizes contain space for bad sector tables unless
+# the device drivers fail to support this. Smaller disks may
+# not have all partitions and all disks have no defaults for
+# the `h' partition. The strategy here is that `a' always
+# has the same amount for all disks (currently 65536 sectors or 32megs).
+# The `b' partition is approx 48 megs while `c' is always the entire disk.
+# The  sum of `d', `e', and `f' is equal to `g' which is everything else.