125 lines
4.1 KiB
Bash
Executable File
125 lines
4.1 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 the proper NetBSD infrastructure.
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#
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# Supported command line switches:
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# -i build iso image instead of qemu imaeg
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# -b bitcode build, increase partition sizes as necessary
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#
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: ${ARCH=i386}
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: ${OBJ=../obj.${ARCH}}
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: ${TOOLCHAIN_TRIPLET=i586-elf32-minix-}
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: ${BUILDSH=build.sh}
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: ${SETS="minix-base minix-comp minix-games minix-man minix-tests tests"}
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: ${IMG=minix_x86.img}
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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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# 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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: ${BOOTXX_SECS=32}
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: ${ROOT_SIZE=$(( 128*(2**20) - ${BOOTXX_SECS} * 512 ))}
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: ${HOME_SIZE=$(( 128*(2**20) ))}
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: ${USR_SIZE=$(( 1792*(2**20) ))}
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# set up disk creation environment
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. releasetools/image.defaults
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. releasetools/image.functions
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# all sizes are written in 512 byte blocks
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ROOTSIZEARG="-b $((${ROOT_SIZE} / 512 / 8))"
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USRSIZEARG="-b $((${USR_SIZE} / 512 / 8))"
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HOMESIZEARG="-b $((${HOME_SIZE} / 512 / 8))"
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# where the kernel & boot modules will be
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MODDIR=${DESTDIR}/boot/minix/.temp
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echo "Building work directory..."
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build_workdir "$SETS"
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echo "Adding extra files..."
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# create a fstab entry in /etc
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cat >${ROOT_DIR}/etc/fstab <<END_FSTAB
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/dev/c0d0p1 /usr mfs rw 0 2
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/dev/c0d0p2 /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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add_file_spec "etc/fstab" extra.fstab
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cp ${DESTDIR}/usr/mdec/boot_monitor ${ROOT_DIR}/boot_monitor
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add_file_spec "boot_monitor" extra.boot
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add_link_spec "boot/minix_latest" "minix_default" extra.kernel
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workdir_add_kernel minix_default
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workdir_add_kernel minix/$RELEASE_VERSION
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# add boot.cfg
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cat >${ROOT_DIR}/boot.cfg <<END_BOOT_CFG
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clear=1
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timeout=5
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default=2
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menu=Start MINIX 3:load_mods /boot/minix_default/mod*; multiboot /boot/minix_default/kernel rootdevname=c0d0p0
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menu=Start latest MINIX 3:load_mods /boot/minix_latest/mod*; multiboot /boot/minix_latest/kernel rootdevname=c0d0p0
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menu=Start latest MINIX 3 in single user mode:load_mods /boot/minix_latest/mod*; multiboot /boot/minix_latest/kernel rootdevname=c0d0p0 bootopts=-s
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menu=Start MINIX 3 ALIX:load_mods /boot/minix_default/mod*;multiboot /boot/minix_default/kernel rootdevname=c0d0p0 console=tty00 consdev=com0 ata_no_dma=1
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menu=Edit menu option:edit
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menu=Drop to boot prompt:prompt
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default=2
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menu=Start MINIX 3 ($RELEASE_VERSION):load_mods /boot/minix/$RELEASE_VERSION/mod*; multiboot /boot/minix/$RELEASE_VERSION/kernel rootdevname=c0d0p0
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END_BOOT_CFG
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add_file_spec "boot.cfg" extra.boot
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echo "Bundling packages..."
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bundle_packages "$BUNDLE_PACKAGES"
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echo "Creating specification files..."
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create_input_spec
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create_protos "usr home"
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# Clean image
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if [ -f ${IMG} ] # IMG might be a block device
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then
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rm -f ${IMG}
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fi
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#
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# Generate /root, /usr and /home partition images.
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#
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echo "Writing disk image..."
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ROOT_START=${BOOTXX_SECS}
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echo " * ROOT"
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_ROOT_SIZE=$(${CROSS_TOOLS}/nbmkfs.mfs -d ${ROOTSIZEARG} -I $((${ROOT_START}*512)) ${IMG} ${WORK_DIR}/proto.root)
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_ROOT_SIZE=$(($_ROOT_SIZE / 512))
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USR_START=$((${ROOT_START} + ${_ROOT_SIZE}))
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echo " * USR"
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_USR_SIZE=$(${CROSS_TOOLS}/nbmkfs.mfs -d ${USRSIZEARG} -I $((${USR_START}*512)) ${IMG} ${WORK_DIR}/proto.usr)
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_USR_SIZE=$(($_USR_SIZE / 512))
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HOME_START=$((${USR_START} + ${_USR_SIZE}))
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echo " * HOME"
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_HOME_SIZE=$(${CROSS_TOOLS}/nbmkfs.mfs -d ${HOMESIZEARG} -I $((${HOME_START}*512)) ${IMG} ${WORK_DIR}/proto.home)
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_HOME_SIZE=$(($_HOME_SIZE / 512))
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#
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# Write the partition table using the natively compiled
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# minix partition utility
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#
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${CROSS_TOOLS}/nbpartition -m ${IMG} ${BOOTXX_SECS} 81:${_ROOT_SIZE} 81:${_USR_SIZE} 81:${_HOME_SIZE}
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${CROSS_TOOLS}/nbinstallboot -f -m ${ARCH} ${IMG} ${DESTDIR}/usr/mdec/bootxx_minixfs3
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mods="`( cd ${MODDIR}; echo mod* | tr ' ' ',' )`"
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echo "Disk image at `pwd`/${IMG}"
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echo "To boot this image on kvm:"
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echo "cd ${MODDIR} && qemu-system-i386 --enable-kvm -m 256 -kernel kernel -append \"rootdevname=c0d0p0\" -initrd \"${mods}\" -hda `pwd`/${IMG}"
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