/pub/FreeBSD/tools/bsdboot

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bsdboot.com - boot *BSD from DOS
	March, 5. 2002

A program booting FreeBSD/NetBSD/OpenBSD from DOS.

SYNOPSIS

	bsdboot [boot option] file [kernel option]

  Boot options are:

	-u	   : boots from UFS filesystem.
	-c command : executes command.
	-i	   : Interactive mode.
	-f	   : boots FreeBSD.
	-n	   : boots NetBSD.
	-o	   : boots OpenBSD.

  `file' designates the kernel file name.

  `kernel option' designates each BSD's kernel options.
  `man boot' to look up the kernel options.


USAGE AND CAVEAT

  Cannot boot from WindowsNT.

  Booting from DOS/Windows95/98 with himem.sys causes the system hung.
  Start without himem.sys.

  Case of DOS
  Remove the line `device=himem.sys' from config.sys and restart.

  Case of Windows95
  1. Press F8 key in about 2 seconds after it displays `starting windows95...'.
  2. Select `Step-by-step confirmation' in the menu and then answer N
    to all of the questions.

  Case of Windows98
  1. Start the machine with CTRL key pressed.
  2. Select `Step-by-step confirmation' in the menu and then answer N
    to all of the questions.


  Examples: Booting FreeBSD
	bsdboot -f kernel

      Booting OpenBSD in single-user mode
	bsdboot -o bsd -s

Compilation method
  You need syssrc.tgz of NetBSD 1.5. Please get it from anywhere.
  With the following procedure, "WORK" signifies working directory.

	set WORK="working directory"
	cd $WORK
	tar -xovzf syssrc.tgz
	patch -p0 < bsdboot.patch
	cd $WORK/usr/src/sys/arch/i386/stand/dosboot


  For compile with NetBSD:
	make


  For compile with OpenBSD:
	make OBJECT_FMT=AOUT KERNEL=OPENBSD

  In case of appearing following message:
	make: don't know how to make bsdboot.com.cat1. Stop
  you do not need to mind it.


  For compile with FreeBSD:
    Please refer to an appendix.

  bsdboot.com will be made in $WORK/usr/src/sys/arch/i386/stand/dosboot,
  please use this.



  I successfully compiled it with NetBSD 1.5.

BUGS
  Optional of FreeBSD as -D and -P, i does not do implement till now.

Condition of redistribution
  After a patch application, a file including a description of
  distribution condition obeys it.
  As for the file which there is not of description, you can change or
  redistribute it freely.

An immunity from responsibility
  An author does not bear responsibility, for any kind of damage to
  originate in this software.
  In addition, I do not bear duty of support either.

-- 
kurati
http://www.nurs.or.jp/~kurati/




--------------------------------------------------------------------------
Appendix

Compilation method with FreeBSD

  You need make of NetBSD.
  Because a binary does not work as it is you need to make it from source.

  Please do the following work after obtaining sources of
  NetBSD (i386) described below.
	src.tgz
	base.tgz
	comp.tgz


Method to compile make of NetBSD with FreeBSD

  WORK signifies working directory in following discussion.

  1. extracting sources.
	set WORK="working directory"
	cd $WORK
	tar -xovzf src.tgz usr/src/usr.bin/make
	tar -xovzf base.tgz ./usr/share/mk/sys.mk
	tar -xovzf comp.tgz ./usr/share/mk/

  2. modify Makefile
	cd $WORK/usr/src/usr.bin/make

     You must change line of CPPFLAGS+=... of the fourth line of
     Makefile in CFLAGS+=...

  3. make
	make

Method to compile bsdboot.com with FreeBSD

  1. refer to section of compilation method, extract sources and
     apply of patch to source.

  2. compile it.
	cd $WORK/usr/src/sys/arch/i386/stand/dosboot
	set MAKE=$WORK/usr/src/usr.bin/make/make
	setenv OBJFORMAT aout
	$MAKE -m $WORK/usr/share/mk MAKE=$MAKE KERNEL=FREEBSD

  Thanks.