fix booting with serial console - i replaced the bios code from OpenBSD with

FreeBSD's polling code so that it works with all serial terminals - if you now
remove the comment in front of #CPPFLAGS+=-DSERIAL -D... - the bootprompt
should appear on the serial console

note: i had to rename "geometry" in one printf of sys.c to "geom." to get the
      bootblocks small enough for serial console booting

1 files changed, 3 insertions, 2 deletions

diff --git a/sys/arch/i386/boot/Makefile b/sys/arch/i386/boot/Makefile
index e272ec29953..7e10e288ade 100644
--- a/sys/arch/i386/boot/Makefile
+++ b/sys/arch/i386/boot/Makefile
@@ -41,10 +41,11 @@ CFLAGS=	-O6 -D_KERNEL -DI386_CPU -DI486_CPU -DI586_CPU
 CFLAGS+=-DDO_BAD144 -I. -I${.CURDIR} -I$S -I${.CURDIR}/../..
 
 # Uncomment this to make the boot block talk to a serial port.
-#CPPFLAGS+=-DSERIAL
+#CPPFLAGS+=-DSERIAL -DCOMCONSOLE=0x3F8 -DCONSPEED=9600
 
 # start.o should be first
-OBJS=	start.o table.o boot.o asm.o bios.o io.o disk.o sys.o version.o
+OBJS=	start.o table.o boot.o asm.o bios.o io.o disk.o sys.o version.o \
+	serial.o
 
 boot:	${OBJS}
 	${LD} -Bstatic -e start -N -T 0 -o boot ${OBJS}