initial import of NetBSD tree

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diff --git a/sys/arch/sun3/stand/README b/sys/arch/sun3/stand/README
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+/*	$NetBSD: README,v 1.2 1995/08/12 18:38:30 gwr Exp $ */
+
+The sun bootblocks are split into two parts: a small 1st-level program that
+gets written right after the superblock in a partition (and is hence limited
+in size to SBSIZE - DEV_BSIZE bytes), and a 2nd-level program that resides
+in the filesystem proper.
+
+The 1st-level program is loaded into memory by the PROM. It loads the second
+stage program from a set of filesystem block numbers that are hard-coded
+into it by the `installboot' program. The prototype code for the 1st-level
+bootblocks are in `bootxx'.
+
+The 2nd-level program (`ufsboot') is normally installed in the root FS
+as `/ufsboot'. It uses the device drivers in the PROM and the stand-alone
+filesystem code in `libsa.a' to locate and load the kernel.
+
+Use the following command to install the 1st-level bootblocks in the
+root filesystem (on `sd0a') using the file `/boot' as the second level
+boot program:
+
+	mount /dev/sd0a /mnt
+	installboot /mnt/ufsboot bootxx /dev/rsd0a
+
+The above only works with securelevel <= 0 (see init.8 manual).
+
+Status:
+
+netboot works.
+
+bootxx, installboot are tested and working.  It would be nice if
+installboot would find the inumber for the 2nd stage boot program
+without having the filesystem mounted so this command can work
+with securelevel==1 (the default).  Doing this requies adding
+code to read and do a directory lookup in the root...
+