da7dc4d54c
Leveraging the new image generation framework, MINIX has now turn-key PXE booting capability. The booting process uses SYSLINUX, licensed under GPL2+. Due to the lack of NFS support, a ramdisk is provided as a root device. The generated ramdisk is quite huge for a network boot, but it can be trimmed down at a later date.
84 lines
2.6 KiB
Bash
Executable File
84 lines
2.6 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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# set up disk creation environment
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. releasetools/image.defaults
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. releasetools/image.functions
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: ${RAMDISK_SIZE=$(( 200*(2**20) / 512 / 8 ))}
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# where the kernel & boot modules will be
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MODDIR=${DESTDIR}/boot/minix/.temp
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echo "Fetching syslinux..."
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${RELEASETOOLSDIR}/fetch_syslinux.sh -o ${RELEASETOOLSDIR}/syslinux -n $SYSLINUX_GIT_VERSION
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echo "Building work directory..."
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build_workdir "$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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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 minix/drivers/storage/ramdisk/rc ${ROOT_DIR}/etc/rc.ramdisk
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add_file_spec "etc/rc.ramdisk" extra.fstab
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cp releasetools/release/pxe/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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cp ${MODDIR}/* ${WORK_DIR}
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create_ramdisk_image ${RAMDISK_SIZE}
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echo "Preparing PXE boot directory..."
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mkdir ${WORK_DIR}/pxelinux.cfg
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cat >${WORK_DIR}/pxelinux.cfg/default <<EOF
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DEFAULT menu.c32
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TIMEOUT 100
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LABEL x86
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MENU LABEL Minix3
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KERNEL mboot.c32
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APPEND kernel bootramdisk=1 --- mod01_ds --- mod02_rs --- mod03_pm --- mod04_sched --- mod05_vfs --- mod06_memory --- mod07_tty --- mod08_mib --- mod09_vm --- mod10_pfs --- mod11_mfs --- mod12_init
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EOF
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cp ${RELEASETOOLSDIR}/syslinux/bios/com32/elflink/ldlinux/ldlinux.c32 ${WORK_DIR}/
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cp ${RELEASETOOLSDIR}/syslinux/bios/com32/lib/libcom32.c32 ${WORK_DIR}/
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cp ${RELEASETOOLSDIR}/syslinux/bios/com32/libutil/libutil.c32 ${WORK_DIR}/
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cp ${RELEASETOOLSDIR}/syslinux/bios/com32/mboot/mboot.c32 ${WORK_DIR}/
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cp ${RELEASETOOLSDIR}/syslinux/bios/com32/menu/menu.c32 ${WORK_DIR}/
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cp ${RELEASETOOLSDIR}/syslinux/bios/core/pxelinux.0 ${WORK_DIR}/
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rm -rf ${WORK_DIR}/extra.* ${WORK_DIR}/set.* ${WORK_DIR}/proto.* ${WORK_DIR}/imgrd.mfs ${WORK_DIR}/imgrd.o
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echo "PXE boot directory at ${WORK_DIR}"
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echo "To boot this image on kvm:"
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echo "cd ${WORK_DIR} && qemu-system-i386 --enable-kvm -m 512M -tftp . -bootp pxelinux.0 -boot n"
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