307 lines
8.4 KiB
Bash
Executable File
307 lines
8.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -e
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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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#
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# Source settings if present
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#
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: ${SETTINGS_MINIX=.settings}
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if [ -f "${SETTINGS_MINIX}" ]
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then
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echo "Sourcing settings from ${SETTINGS_MINIX}"
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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_MINIX} | sed "s,^,CONTENT ,g"
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. ${SETTINGS_MINIX}
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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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: ${RELEASETOOLSDIR=./releasetools/}
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: ${FSTAB=${DESTDIR}/etc/fstab}
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: ${BUILDVARS=-V MKGCCCMDS=yes -V MKLLVM=no}
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# These BUILDVARS are for building with LLVM:
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#: ${BUILDVARS=-V MKLIBCXX=no -V MKKYUA=no -V MKATF=no -V MKLLVMCMDS=no}
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: ${BUILDSH=build.sh}
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: ${CREATE_IMAGE_ONLY=0}
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: ${RC=minix_x86.rc}
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# Where the kernel & boot modules will be
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MODDIR=${DESTDIR}/boot/minix/.temp
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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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: ${MLO=MLO}
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: ${UBOOT=u-boot.img}
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# Beagleboard-xm
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: ${U_BOOT_BIN_DIR=build/omap3_beagle/}
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: ${CONSOLE=tty02}
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# BeagleBone (and black)
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#: ${U_BOOT_BIN_DIR=build/am335x_evm/}
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#: ${CONSOLE=tty00}
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#
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# We host u-boot binaries.
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#
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U_BOOT_GIT_VERSION=cb5178f12787c690cb1c888d88733137e5a47b15
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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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# for alignment reasons, prefer sizes which are multiples of 4096 bytes
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#
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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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: ${USR_SIZE=$(( 1792*(2**20) / 512))}
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#
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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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#
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FAT_START=2048
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ROOT_START=$(($FAT_START + $FAT_SIZE))
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USR_START=$(($ROOT_START + $ROOT_SIZE))
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HOME_START=$(($USR_START + $USR_SIZE))
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case $(uname -s) in
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Darwin)
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MKFS_VFAT_CMD=newfs_msdos
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MKFS_VFAT_OPTS="-h 64 -u 32 -S 512 -s ${FAT_SIZE} -o 0"
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;;
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FreeBSD)
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MKFS_VFAT_CMD=newfs_msdos
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MKFS_VFAT_OPTS=
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;;
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*)
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MKFS_VFAT_CMD=mkfs.vfat
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MKFS_VFAT_OPTS=
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;;
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esac
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if [ -n "$BASE_URL" ]
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then
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#we no longer download u-boot but do a checkout
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#BASE_URL used to be the base url for u-boot
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#Downloads
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echo "Warning:** Setting BASE_URL (u-boot) is no longer possible use U_BOOT_BIN_DIR"
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echo "Look in ${RELEASETOOLSDIR}/arm_sdimage.sh for suggested values"
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exit 1
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fi
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if [ ! -f ${BUILDSH} ]
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then
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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 ${MKFS_VFAT_CMD} git
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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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: ${IMG=minix_arm_sd.img}
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#
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# Are we going to build the minix sources?
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#
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if [ ${CREATE_IMAGE_ONLY} -eq 1 ]
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then
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if [ ! -d ${DESTDIR} ]
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then
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echo "Minix source code does'nt appear to have been built."
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echo "Please try with \$CREATE_IMAGE_ONLY set to 0."
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exit 1
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fi
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fi
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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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rm -rf ${IMG_DIR}
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if [ -f ${IMG} ] # IMG might be a block device
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then rm -f ${IMG}
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fi
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mkdir -p ${IMG_DIR}
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#
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# Download the stage 1 bootloader and u-boot
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#
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${RELEASETOOLSDIR}/fetch_u-boot.sh -o ${RELEASETOOLSDIR}/u-boot -n $U_BOOT_GIT_VERSION
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cp ${RELEASETOOLSDIR}/u-boot/${U_BOOT_BIN_DIR}/u-boot.img ${IMG_DIR}/
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cp ${RELEASETOOLSDIR}/u-boot/${U_BOOT_BIN_DIR}/MLO ${IMG_DIR}/
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if [ ${CREATE_IMAGE_ONLY} -eq 0 ]
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then
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echo "Going to build Minix source code..."
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#
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# Remove the generated files to allow us call build.sh without '-V SLOPPY_FLIST=yes'.
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#
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rm -f ${FSTAB}
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#
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# Now start the build.
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#
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sh ${BUILDSH} -j ${JOBS} -m ${ARCH} -O ${OBJ} -D ${DESTDIR} ${BUILDVARS} -U -u distribution
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fi
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#
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# create a fstab entry in /etc this is normally done during the
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# setup phase on x86
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#
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cat >${FSTAB} <<END_FSTAB
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/dev/c0d0p2 /usr mfs rw 0 2
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/dev/c0d0p3 /home mfs rw 0 2
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none /sys devman rw,rslabel=devman 0 0
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none /dev/pts ptyfs rw,rslabel=ptyfs 0 0
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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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# 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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# After 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 convert the user and group names into uid and gids
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# FIX put "input somewhere clean"
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#
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cat ${DESTDIR}/METALOG.sanitised | ${CROSS_TOOLS}/nbmtree -N ${DESTDIR}/etc -C -K device > ${IMG_DIR}/input
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# add rc (if any)
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if [ -f ${RC} ]; then
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cp ${RC} ${DESTDIR}/usr/etc/rc.local
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echo "./usr/etc/rc.local type=file uid=0 gid=0 mode=0644" >> ${IMG_DIR}/input
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fi
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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.proto
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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 ${IMG_DIR}/home.proto
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#
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# Create the FAT partition, which contains the bootloader files, kernel and modules
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#
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dd if=/dev/zero of=${IMG_DIR}/fat.img bs=512 count=1 seek=$(($FAT_SIZE -1)) 2>/dev/null
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#
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# 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_CMD} ${MKFS_VFAT_OPTS} ${IMG_DIR}/fat.img
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#
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# Create a uEnv.txt file
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# -n default to network boot
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# -p add a prefix to the network booted files (e.g. xm/"
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# -c set console e.g. tty02 or tty00
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# -v set verbosity e.g. 0 to 3
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#${RELEASETOOLSDIR}/gen_uEnv.txt.sh -c ${CONSOLE} -n -p bb/ > ${IMG_DIR}/uEnv.txt
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${RELEASETOOLSDIR}/gen_uEnv.txt.sh -c ${CONSOLE} > ${IMG_DIR}/uEnv.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 ${IMG_DIR}/uEnv.txt ::uEnv.txt
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#
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# Do some last processing of the kernel and servers and then put them on the FAT
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# partition.
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#
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${CROSS_PREFIX}objcopy ${OBJ}/minix/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 servers/vm/vm servers/rs/rs servers/pm/pm servers/sched/sched \
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servers/vfs/vfs servers/ds/ds fs/mfs/mfs fs/pfs/pfs \
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../sbin/init/init
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do
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fn=`basename $f`.elf
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cp ${OBJ}/minix/${f} ${OBJ}/${fn}
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${CROSS_PREFIX}strip -s ${OBJ}/${fn}
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mcopy -bsp -i ${IMG_DIR}/fat.img ${OBJ}/${fn} ::${fn}
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done
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for f in tty/tty/tty storage/memory/memory
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do
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fn=`basename $f`.elf
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cp ${OBJ}/minix/drivers/${f} ${OBJ}/${fn}
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${CROSS_PREFIX}strip -s ${OBJ}/${fn}
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mcopy -bsp -i ${IMG_DIR}/fat.img ${OBJ}/${fn} ::${fn}
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done
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#
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# For tftp booting
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#
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cp ${IMG_DIR}/uEnv.txt ${OBJ}/
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#
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# Create the empty image where we later will put the partitions in.
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# Make sure it is at least 2GB, otherwise the SD card will not be detected
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# correctly in qemu / HW.
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#
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dd if=/dev/zero of=${IMG} bs=512 count=1 seek=$(($IMG_SIZE -1))
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#
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# Generate /root, /usr and /home partition images.
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#
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echo "Writing Minix filesystem images"
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echo " - ROOT"
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_ROOT_SIZE=$((`${CROSS_TOOLS}/nbmkfs.mfs -I $((${ROOT_START} * 512)) -b $((${ROOT_SIZE} / 8)) ${IMG} ${IMG_DIR}/root.proto`/512))
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echo " - USR"
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_USR_SIZE=$((`${CROSS_TOOLS}/nbmkfs.mfs -I $((${USR_START} * 512)) -b $((${USR_SIZE} / 8)) ${IMG} ${IMG_DIR}/usr.proto`/512))
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echo " - HOME"
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_HOME_SIZE=$((`${CROSS_TOOLS}/nbmkfs.mfs -I $((${HOME_START} * 512)) -b $((${HOME_SIZE} / 8)) ${IMG} ${IMG_DIR}/home.proto`/512))
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#
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# Write the partition table using the natively compiled
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# minix partition utility
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#
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${CROSS_TOOLS}/nbpartition -f -m ${IMG} ${FAT_START} "c:${FAT_SIZE}*" \
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81:${_ROOT_SIZE} 81:${_USR_SIZE} 81:${_HOME_SIZE}
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#
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# Merge the partitions into a single image.
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#
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echo "Merging file systems"
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dd if=${IMG_DIR}/fat.img of=${IMG} seek=$FAT_START conv=notrunc
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