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Makefile.bootfloppy revision 1.5 
      1 #	$NetBSD: Makefile.bootfloppy,v 1.5 2002/04/11 12:17:15 lukem Exp $
      2 
      3 .include <bsd.own.mk>
      4 .include "${_SRC_TOP_}/distrib/Makefile.inc"
      5 
      6 # needs the following set:
      7 #	IMAGE		image name
      8 #	KERNELDIR	where kernel is grabbed from
      9 #	KERNEL		kernel name
     10 #	DISKSIZE	size of image in 0.5K blocks
     11 
     12 FSTMP=		ustar.tmp
     13 MDEC=		${DESTDIR}/usr/mdec
     14 BOOTCODE?=	${MDEC}/biosboot.sym
     15 #BOOTCODE=	${MDEC}/biosboot_com0.sym	# Serial output
     16 
     17 CLEANFILES+=	netbsd boot ustar.tmp ${METAFILE} ${IMAGE} ${IMAGE}.tmp
     18 
     19 realall:	${IMAGE}
     20 
     21 ${IMAGE}:	netbsd boot
     22 	if test "${METAFILE}" != ""; then \
     23 		touch ${METAFILE}; \
     24 	fi
     25 	${PAX} -wvf ${FSTMP} boot ${METAFILE} netbsd
     26 	@echo
     27 	@echo Making disk number one
     28 	rm -rf empty
     29 	mkdir -m 755 empty
     30 	${MAKEFS} -s ${DISKSIZE}b ${IMAGE}.tmp empty
     31 	dd bs=8k seek=1 count=$$((${DISKSIZE} / 16 - 1)) \
     32 	    if=${FSTMP} of=${IMAGE}.tmp
     33 	@echo "installing new bootblocks"
     34 	${MDEC}/installboot -b 17 -v -f ${BOOTCODE} ${IMAGE}.tmp
     35 		# XXXDISTRIB
     36 	@ls -l ${FSTMP} | (read mode links uid gid size junk; \
     37 		dksize=$$((${DISKSIZE} * 512 - 8 * 1024)); \
     38 		disks=$$(($$size / $$dksize + 1)); \
     39 		if test $$size -gt $$dksize; then \
     40                 	bytes=$$(($$size - $$dksize));    \
     41 			echo "Image is $$bytes ($$(($$bytes / 1024))K) too big\
     42 				to fit on one disk."; \
     43 			exit 1; \
     44 		else \
     45 			dd seek=$$(($${size} / 512 + 15)) count=1 \
     46 				if=/dev/zero of=${IMAGE}.tmp; \
     47 		fi; \
     48 		echo; \
     49                 bytes=$$(($$dksize * $$disks - $$size));    \
     50 		if test "${PAD}" = "yes"; then \
     51 			size=$$(($$size + 8 * 1024)); \
     52 			echo "Padding image with $$bytes bytes from $$size"; \
     53 			sectors=$$(($$bytes / 512)); \
     54 			ssize=$$(($$size / 512)); \
     55 			dd if=/dev/zero bs=512 seek=$${ssize} of=${IMAGE}.tmp \
     56 				count=$${sectors}; \
     57                 else \
     58 			echo "There are $$bytes ($$(($$bytes / 1024))K) bytes\
     59 				free on disk $$disks."; \
     60 		fi; \
     61 	)
     62 	mv -f ${IMAGE}.tmp ${IMAGE}
     63 
     64 # Let the kernel on the diskette be called "netbsd" although
     65 # it is compressed.  This is because the boot code will search
     66 # for "netbsd" first, and calling it "netbsd" instead of "netbsd.gz"
     67 # we avoid scanning all the diskettes before reading the file.
     68 
     69 KERNELOBJDIR!=	cd ${.CURDIR}/../${KERNELDIR} && ${PRINTOBJDIR}
     70 
     71 netbsd: ${KERNELOBJDIR}/${KERNEL}
     72 	rm -f netbsd
     73 	cp ${KERNELOBJDIR}/${KERNEL} netbsd
     74 
     75 # This is "cheating", just so that we have the available
     76 # space at the start of the tar file.  Installboot will overwrite
     77 # the start of the bootcode with the tail end of the "real", aligned
     78 # second-stage boot loader when it is run (which is quite a bit shorter
     79 # than the entire ${BOOTCODE} file, even when symbols are removed.
     80 # (the first 15*512 bytes are put into the first 8K filesystem block,
     81 # around the disklabel)
     82 
     83 boot: ${BOOTCODE}
     84 	rm -f boot
     85 	cp ${BOOTCODE} boot
     86 	${STRIP} boot
     87 
     88 release: check_RELEASEDIR
     89 	-mkdir -p ${RELEASEDIR}/installation/floppy
     90 	cp -p ${IMAGE} ${RELEASEDIR}/installation/floppy
     91 
     92 clean cleandir distclean:
     93 	rm -rf empty
     94 
     95 .include <bsd.prog.mk>
     96