246 lines
7 KiB
Bash
Executable file
246 lines
7 KiB
Bash
Executable file
#!/bin/bash
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set -e
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#set -x
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#
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# Source settings if present
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#
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if [ -e .settings ]
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then
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echo "Sourcing settings from .settings"
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# Display the content (so we can check in the build logs
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# what the settings contain.
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cat .settings | sed "s,^,CONTENT ,g"
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. .settings
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fi
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: ${ARCH=evbearm-el}
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: ${OBJ=../obj.${ARCH}}
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: ${CROSS_TOOLS=${OBJ}/"tooldir.`uname -s`-`uname -r`-`uname -m`"/bin}
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: ${CROSS_PREFIX=${CROSS_TOOLS}/arm-elf32-minix-}
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: ${JOBS=1}
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: ${DESTDIR=${OBJ}/destdir.$ARCH}
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: ${FSTAB=${DESTDIR}/etc/fstab}
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: ${BUILDVARS=}
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: ${BUILDSH=build.sh}
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#
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# Directory where to store temporary file system images
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#
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: ${IMG_DIR=${OBJ}/img}
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: ${IMG=minix_arm_sd.img}
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: ${MLO=MLO}
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: ${UBOOT=u-boot.img}
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# beagleboard-xm
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: ${BASE_URL=http://www.minix3.org/arm/beagleboard-xm}
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: ${FLAG=-DDM37XX}
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: ${CONSOLE=tty02}
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#beaglebone (and black)
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#: ${BASE_URL=http://www.minix3.org/arm/beaglebone}
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#: ${FLAG=-DAM335X}
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#: ${CONSOLE=tty00}
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if [ ! -f ${BUILDSH} ]
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then echo "Please invoke me from the root source dir, where ${BUILDSH} is."
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exit 1
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fi
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export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:$PATH
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for needed in mcopy dd wget mkfs.vfat
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do
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if ! which $needed 2>&1 > /dev/null
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then
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echo "**Skipping image creation: missing tool '$needed'"
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exit 1
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fi
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done
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#
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# Artifacts from this script are stored in the IMG_DIR
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#
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mkdir -p $IMG_DIR
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#
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# Download the stage 1 bootloader and u-boot
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#
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for i in ${MLO} ${UBOOT}
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do
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if [ ! -f ${IMG_DIR}/${i} ]
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then
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if ! wget -O ${IMG_DIR}/$i ${BASE_URL}/$i
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then
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echo "Failed to download $i"
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rm -f ${IMG_DIR}/$i
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exit 1
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fi
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fi
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done
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#
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# Call build.sh using a sloppy file list so we don't need to remove the installed /etc/fstag
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#
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export CPPFLAGS=${FLAG}
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sh ${BUILDSH} -V SLOPPY_FLIST=yes -V MKBINUTILS=yes -V MKGCCCMDS=yes -j ${JOBS} -m ${ARCH} -O ${OBJ} -D ${DESTDIR} ${BUILDVARS} -U -u distribution
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#
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# This script creates a bootable image and should at some point in the future
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# be replaced by makefs.
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#
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# All sized are written in 512 byte blocks
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#
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# we create a disk image of about 2 gig's
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: ${IMG_SIZE=$(( 2*(2**30) / 512))}
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: ${FAT_SIZE=$(( 10*(2**20) / 512))}
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: ${ROOT_SIZE=$(( 64*(2**20) / 512))}
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: ${HOME_SIZE=$(( 128*(2**20) / 512))}
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: ${USR_SIZE=$(( 1536*(2**20) / 512))}
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#
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# create a fstab entry in /etc this is normally done during the
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# setup phase on x86
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#
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cat >${FSTAB} <<END_FSTAB
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/dev/c0d0p2 /home mfs rw 0 2
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/dev/c0d0p3 /usr mfs rw 0 2
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END_FSTAB
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rm -f ${DESTDIR}/SETS.*
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${CROSS_TOOLS}/nbpwd_mkdb -V 0 -p -d ${DESTDIR} ${DESTDIR}/etc/master.passwd
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#
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# Now given the sizes above use DD to create separate files representing
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# the partitions we are going to use.
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#
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dd if=/dev/zero of=${IMG_DIR}/fat.img bs=512 count=1 seek=$(($FAT_SIZE -1)) 2>/dev/null
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#
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# Create the empty image where we later will put the partitions in.
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#
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rm -f ${IMG}
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dd if=/dev/zero of=${IMG} bs=512 count=1 seek=$(($IMG_SIZE -1))
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# Do some math to determine the start addresses of the partitions.
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# Don't leave holes so the 'partition' invocation later is easy.
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FAT_START=2048
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ROOT_START=$(($FAT_START + $FAT_SIZE))
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HOME_START=$(($ROOT_START + $ROOT_SIZE))
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USR_START=$(($HOME_START + $HOME_SIZE))
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# Write the partition table using the natively compiled
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# minix partition utility
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${CROSS_TOOLS}/nbpartition -m ${IMG} ${FAT_START} "c:${FAT_SIZE}*" 81:${ROOT_SIZE} 81:${HOME_SIZE} 81:${USR_SIZE}
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#
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# Format the fat partition and put the bootloaders
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# uEnv and the kernel command line in the FAT partition
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#
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mkfs.vfat ${IMG_DIR}/fat.img
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#
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# Create a uEnv.txt file
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# -n default to network boot
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# -p add a prefix to the network booted files (e.g. xm/"
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./releasetools/gen_uEnv.txt.sh > ${IMG_DIR}/uEnv.txt
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#
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# Generate the MINIX command line
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#
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# options:
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# -c set console e.g. tty02 or tty00
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# -v set verbosity e.g. 0 to 3
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./releasetools/gen_cmdline.txt.sh -c ${CONSOLE} > ${IMG_DIR}/cmdline.txt
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echo "Copying configuration kernel and boot modules"
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mcopy -bsp -i ${IMG_DIR}/fat.img ${IMG_DIR}/$MLO ::MLO
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mcopy -bsp -i ${IMG_DIR}/fat.img ${IMG_DIR}/$UBOOT ::u-boot.img
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mcopy -bsp -i ${IMG_DIR}/fat.img ${IMG_DIR}/uEnv.txt ::uEnv.txt
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mcopy -bsp -i ${IMG_DIR}/fat.img ${IMG_DIR}/cmdline.txt ::cmdline.txt
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#
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# For tftp booting
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#
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cp ${IMG_DIR}/uEnv.txt ${OBJ}/
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cp ${IMG_DIR}/cmdline.txt ${OBJ}/
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#
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# Do some last processing of the kernel and servers before also putting
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# them on the FAT
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#
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${CROSS_PREFIX}objcopy ${OBJ}/kernel/kernel -O binary ${OBJ}/kernel.bin
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mcopy -bsp -i ${IMG_DIR}/fat.img ${OBJ}/kernel.bin ::kernel.bin
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for f in vm rs pm sched vfs ds mfs pfs init
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do
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cp ${OBJ}/servers/${f}/${f} ${OBJ}/${f}.elf
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${CROSS_PREFIX}strip -s ${OBJ}/${f}.elf
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mcopy -bsp -i ${IMG_DIR}/fat.img ${OBJ}/${f}.elf ::${f}.elf
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done
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for f in tty memory log
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do
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cp ${OBJ}/drivers/${f}/${f} ${OBJ}/${f}.elf
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${CROSS_PREFIX}strip -s ${OBJ}/${f}.elf
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mcopy -bsp -i ${IMG_DIR}/fat.img ${OBJ}/${f}.elf ::${f}.elf
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done
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#
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# make the different file system. this part is *also* hacky. We first convert
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# the METALOG.sanitised using mtree into a input METALOG containing uids and
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# gids.
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# Afther that we do some magic processing to add device nodes (also missing from METALOG)
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# and convert the METALOG into a proto file that can be used by mkfs.mfs
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#
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echo "creating the file systems"
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#
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# read METALOG and use mtree to conver the user and group names into uid and gids
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# FIX put "input somwhere clean"
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#
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cat ${DESTDIR}/METALOG.sanitised | ${CROSS_TOOLS}/nbmtree -N ${DESTDIR}/etc -C > ${IMG_DIR}/input
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# add fstab
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echo "./etc/fstab type=file uid=0 gid=0 mode=0755 size=747 time=1365060731.000000000" >> ${IMG_DIR}/input
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# fill root.img (skipping /usr entries while keeping the /usr directory)
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cat ${IMG_DIR}/input | grep -v "^./usr/" | ${CROSS_TOOLS}/nbtoproto -b ${DESTDIR} -o ${IMG_DIR}/root.in
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#
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# add device nodes somewhere in the middle of the proto file. Better would be to add the entries in the
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# original METALOG
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# grab the first part
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grep -B 10000 "^ dev" ${IMG_DIR}/root.in > ${IMG_DIR}/root.proto
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# add the device nodes from the ramdisk
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cat ${OBJ}/drivers/ramdisk/proto.dev >> ${IMG_DIR}/root.proto
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# and add the rest of the file
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grep -A 10000 "^ dev" ${IMG_DIR}/root.in | tail -n +2 >> ${IMG_DIR}/root.proto
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rm ${IMG_DIR}/root.in
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#
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# Create proto files for /usr and /home using toproto.
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#
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cat ${IMG_DIR}/input | grep "^\./usr/\|^. " | sed "s,\./usr,\.,g" | ${CROSS_TOOLS}/nbtoproto -b ${DESTDIR}/usr -o ${IMG_DIR}/usr.proto
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cat ${IMG_DIR}/input | grep "^\./home/\|^. " | sed "s,\./home,\.,g" | ${CROSS_TOOLS}/nbtoproto -b ${DESTDIR}/home -o ${IMG_DIR}/home.proto
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#
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# Generate /root, /usr and /home partition images.
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#
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echo " - ROOT"
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${CROSS_TOOLS}/nbmkfs.mfs -I $((${ROOT_START} * 512)) -b $((${ROOT_SIZE} / 8)) ${IMG} ${IMG_DIR}/root.proto
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echo " - USR"
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${CROSS_TOOLS}/nbmkfs.mfs -I $((${USR_START} * 512)) -b $((${USR_SIZE} / 8)) ${IMG} ${IMG_DIR}/usr.proto
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echo " - HOME"
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${CROSS_TOOLS}/nbmkfs.mfs -I $((${HOME_START} * 512)) -b $((${HOME_SIZE} / 8)) ${IMG} ${IMG_DIR}/home.proto
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#
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# Merge the partitions into a single image.
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#
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echo "Merging file systems"
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dd if=${IMG_DIR}/fat.img of=${IMG} seek=$FAT_START conv=notrunc
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