a7a79fa1f5
Scripts for generating boot-to-ramdisk images are now available. These can be used for example to boot from PXE or from a USB stick, as the ramdisk are self-contained and do not rely on any block devices after being loaded into RAM. The image generation framework has also been slightly cleaned up in order to better accomodate tarball sets bundling in images. Change-Id: I65a176832bd0d6954b430fa8305f90af0bd606c1
106 lines
2.8 KiB
Bash
Executable File
106 lines
2.8 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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: ${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"}
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: ${IMG=minix_x86_usb.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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#: ${RAMDISK_SIZE=$(( 200*(2**20) ))}
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: ${BOOTXX_SECS=32}
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# set up disk creation environment
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. releasetools/image.defaults
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. releasetools/image.functions
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# where the kernel & boot modules will be
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MODDIR=${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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workdir_add_ramdisk_files
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# set correct message of the day (log in and install tip)
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cp releasetools/release/ramdisk/etc/issue ${ROOT_DIR}/etc/issue
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add_file_spec "etc/issue" extra.cdfiles
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echo "Bundling packages..."
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bundle_packages "$BUNDLE_PACKAGES"
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echo "Creating specification files..."
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create_input_spec
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create_protos
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echo "Writing ramdisk image..."
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# add the other modules for boot
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cp ${MODDIR}/* ${WORK_DIR}
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create_ramdisk_image ${RAMDISK_SIZE}
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echo "Writing USB image..."
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# clear ROOT_DIR
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rm -rf ${ROOT_DIR}/*
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echo ". type=dir uid=0 gid=0 mode=0755" > ${WORK_DIR}/extra.boot
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# move all modules back to ROOT_DIR
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mv ${WORK_DIR}/kernel ${WORK_DIR}/mod* ${ROOT_DIR}/
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add_file_spec "kernel" extra.boot
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for i in ${ROOT_DIR}/mod*; do
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add_file_spec $(basename $i) extra.boot
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done
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# add boot.cfg
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cat >${ROOT_DIR}/boot.cfg <<END_BOOT_CFG
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menu=Start MINIX 3:load_mods /mod*; multiboot /kernel bootramdisk=1
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menu=Edit menu option:edit
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menu=Drop to boot prompt:prompt
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clear=1
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timeout=5
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default=1
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END_BOOT_CFG
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add_file_spec "boot.cfg" extra.boot
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# add boot monitor
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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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# create proto file
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cat ${WORK_DIR}/extra.boot | ${CROSS_TOOLS}/nbtoproto -b ${ROOT_DIR} -o ${WORK_DIR}/proto.boot
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ROOT_START=${BOOTXX_SECS}
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_ROOT_SIZE=$(${CROSS_TOOLS}/nbmkfs.mfs -I $((${ROOT_START} * 512)) ${IMG} ${WORK_DIR}/proto.boot)
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_ROOT_SIZE=$(($_ROOT_SIZE / 512))
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#
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# Write the partition table using the natively compiled
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# minix partition utility
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#
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${CROSS_TOOLS}/nbpartition -m ${IMG} ${BOOTXX_SECS} 81:${_ROOT_SIZE}
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${CROSS_TOOLS}/nbinstallboot -f -m ${ARCH} ${IMG} ${DESTDIR}/usr/mdec/bootxx_minixfs3
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echo ""
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echo "Universally Supported Boot disk image at `pwd`/${IMG}"
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echo ""
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echo "To boot this image on kvm using the bootloader:"
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# This is really, really slow.
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# echo "qemu-system-i386 --enable-kvm -m 1G -usbdevice disk:`pwd`/${IMG}"
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echo "qemu-system-i386 --enable-kvm -m 1G -hda `pwd`/${IMG}"
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echo ""
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echo "To boot this image on kvm:"
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echo "cd ${ROOT_DIR} && qemu-system-i386 --enable-kvm -m 1G -kernel kernel -append \"bootramdisk=1\" -initrd \"${mods}\""
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