1#!/bin/bash 2set -e 3 4: ${ARCH=i386} 5: ${OBJ=../obj.${ARCH}} 6: ${CROSS_TOOLS=${OBJ}/"tooldir.`uname -s`-`uname -r`-`uname -m`"/bin} 7: ${CROSS_PREFIX=${CROSS_TOOLS}/i586-elf32-minix-} 8: ${JOBS=1} 9: ${DESTDIR=${OBJ}/destdir.$ARCH} 10: ${FSTAB=${DESTDIR}/etc/fstab} 11: ${BUILDVARS=} 12: ${BUILDSH=build.sh} 13 14# Where the kernel & boot modules will be 15MODDIR=${DESTDIR}/multiboot 16 17# 18# Directory where to store temporary file system images 19# 20: ${IMG_DIR=${OBJ}/img} 21 22CDFILES=${IMG_DIR}/cd 23 24if [ ! -f ${BUILDSH} ] 25then 26 echo "Please invoke me from the root source dir, where ${BUILDSH} is." 27 exit 1 28fi 29 30export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:${PATH} 31 32while getopts "i" c 33do 34 case "$c" in 35 i) : ${IMG=minix_x86.iso} 36 ISOMODE=1 37 ;; 38 esac 39done 40 41: ${IMG=minix_x86.img} 42 43# 44# Artifacts from this script are stored in the IMG_DIR 45# 46rm -rf ${IMG_DIR} ${IMG} 47mkdir -p ${IMG_DIR} ${CDFILES} 48 49# 50# Call build.sh using a sloppy file list so we don't need to remove the installed /etc/fstag 51# 52export CPPFLAGS=${FLAG} 53sh ${BUILDSH} -V SLOPPY_FLIST=yes -V MKBINUTILS=yes -V MKGCCCMDS=yes -j ${JOBS} -m ${ARCH} -O ${OBJ} -D ${DESTDIR} ${BUILDVARS} -U -u distribution 54 55if [ "x${ISOMODE}" = "x1" ] 56then 57 cp ${DESTDIR}/usr/mdec/boot_monitor ${CDFILES}/boot 58 cp ${MODDIR}/* ${CDFILES}/ 59 . ./releasetools/release.functions 60 cd_root_changes # uses $CDFILES and writes $CDFILES/boot.cfg 61 # start the image off with the iso image; reduce root size to reserve 62 ${CROSS_TOOLS}/nbwriteisofs -s0x0 -l MINIX -B ${DESTDIR}/usr/mdec/bootxx_cd9660 -n ${CDFILES} ${IMG} 63 ISO_SIZE=$((`stat -c %s ${IMG}` / 512)) 64else 65 # just make an empty iso partition 66 ISO_SIZE=8 67fi 68 69# 70# create a fstab entry in /etc this is normally done during the 71# setup phase on x86 72# 73cat >${FSTAB} <<END_FSTAB 74/dev/c0d0p2 /usr mfs rw 0 2 75/dev/c0d0p3 /home mfs rw 0 2 76END_FSTAB 77 78rm -f ${DESTDIR}/SETS.* 79 80${CROSS_TOOLS}/nbpwd_mkdb -V 0 -p -d ${DESTDIR} ${DESTDIR}/etc/master.passwd 81 82# 83# make the different file system. this part is *also* hacky. We first convert 84# the METALOG.sanitised using mtree into a input METALOG containing uids and 85# gids. 86# After that we do some magic processing to add device nodes (also missing from METALOG) 87# and convert the METALOG into a proto file that can be used by mkfs.mfs 88# 89echo "creating the file systems" 90 91# 92# read METALOG and use mtree to convert the user and group names into uid and gids 93# FIX put "input somewhere clean" 94# 95cat ${DESTDIR}/METALOG.sanitised | ${CROSS_TOOLS}/nbmtree -N ${DESTDIR}/etc -C -K device > ${IMG_DIR}/input 96 97# add fstab 98echo "./etc/fstab type=file uid=0 gid=0 mode=0755 size=747 time=1365060731.000000000" >> ${IMG_DIR}/input 99 100# fill root.img (skipping /usr entries while keeping the /usr directory) 101cat ${IMG_DIR}/input | grep -v "^./usr/" | ${CROSS_TOOLS}/nbtoproto -b ${DESTDIR} -o ${IMG_DIR}/root.proto 102 103# 104# Create proto files for /usr and /home using toproto. 105# 106cat ${IMG_DIR}/input | grep "^\./usr/\|^. " | sed "s,\./usr,\.,g" | ${CROSS_TOOLS}/nbtoproto -b ${DESTDIR}/usr -o ${IMG_DIR}/usr.proto 107cat ${IMG_DIR}/input | grep "^\./home/\|^. " | sed "s,\./home,\.,g" | ${CROSS_TOOLS}/nbtoproto -b ${DESTDIR}/home -o ${IMG_DIR}/home.proto 108 109# 110# This script creates a bootable image and should at some point in the future 111# be replaced by makefs. 112# 113# All sized are written in 512 byte blocks 114# 115# we create a disk image of about 2 gig's 116# for alignment reasons, prefer sizes which are multiples of 4096 bytes 117# 118: ${ROOT_SIZE=$(( 64*(2**20) / 512))} 119: ${HOME_SIZE=$(( 128*(2**20) / 512))} 120: ${USR_SIZE=$(( 1536*(2**20) / 512))} 121 122if [ "x${ISOMODE}" = "x1" ] 123then 124 # In iso mode, make all FSes fit (i.e. as small as possible), but 125 # leave some space on / 126 ROOTSIZEARG="-x 5" 127else 128 # In hd image mode, FSes have fixed sizes 129 ROOTSIZEARG="-b $((${ROOT_SIZE} / 8))" 130 USRSIZEARG="-b $((${USR_SIZE} / 8))" 131 HOMESIZEARG="-b $((${HOME_SIZE} / 8))" 132fi 133 134echo "Writing Minix filesystem images" 135 136# 137# Do some math to determine the start addresses of the partitions. 138# Ensure the start of the partitions are always aligned, the end will 139# always be as we assume the sizes are multiples of 4096 bytes, which 140# is always true as soon as you have an integer multiple of 1MB. 141# 142ROOT_START=${ISO_SIZE} 143 144echo " - ROOT" 145ROOT_SIZE=$((`${CROSS_TOOLS}/nbmkfs.mfs -d $ROOTSIZEARG -I $(($ROOT_START*512)) ${IMG} ${IMG_DIR}/root.proto`/512)) 146USR_START=$((${ROOT_START} + ${ROOT_SIZE})) 147echo " - USR" 148USR_SIZE=$((`${CROSS_TOOLS}/nbmkfs.mfs -d $USRSIZEARG -I $(($USR_START*512)) ${IMG} ${IMG_DIR}/usr.proto`/512)) 149HOME_START=$((${USR_START} + $USR_SIZE)) 150echo " - HOME" 151HOME_SIZE=$((`${CROSS_TOOLS}/nbmkfs.mfs -d $HOMESIZEARG -I $(($HOME_START*512)) ${IMG} ${IMG_DIR}/home.proto`/512)) 152 153${CROSS_TOOLS}/nbpartition -m ${IMG} 0 81:${ISO_SIZE} 81:${ROOT_SIZE} 81:${USR_SIZE} 81:${HOME_SIZE} 154 155mods="`( cd ${MODDIR}; echo mod* | tr ' ' ',' )`" 156if [ "x${ISOMODE}" = "x1" ] 157then 158 echo "CD image at `pwd`/${IMG}" 159else 160 echo "To boot this image on kvm:" 161 echo "cd ${MODDIR} && kvm -serial stdio -kernel kernel -append \"console=tty00 rootdevname=c0d0p1\" -initrd \"${mods}\" -hda `pwd`/${IMG}" 162fi 163