releasetools/x86_hdimage.sh

   1 #!/usr/bin/env bash
   2 set -e
   3
   4 #
   5 # This script creates a bootable image and should at some point in the future
   6 # be replaced by the proper NetBSD infrastructure.
   7 #
   8
   9 : ${ARCH=i386}
  10 : ${OBJ=../obj.${ARCH}}
  11 : ${TOOLCHAIN_TRIPLET=i586-elf32-minix-}
  12 : ${BUILDSH=build.sh}
  13
  14 : ${SETS="minix-base minix-comp minix-games minix-man minix-tests tests"}
  15 : ${IMG=minix_x86.img}
  16
  17 if [ ! -f ${BUILDSH} ]
  18 then
  19         echo "Please invoke me from the root source dir, where ${BUILDSH} is."
  20         exit 1
  21 fi
  22
  23 # we create a disk image of about 2 gig's
  24 # for alignment reasons, prefer sizes which are multiples of 4096 bytes
  25 : ${BOOTXX_SECS=32}
  26 : ${ROOT_SIZE=$((  128*(2**20) - ${BOOTXX_SECS} * 512 ))}
  27 : ${HOME_SIZE=$((  128*(2**20) ))}
  28 : ${USR_SIZE=$((  1792*(2**20) ))}
  29
  30 # set up disk creation environment
  31 . releasetools/image.defaults
  32 . releasetools/image.functions
  33
  34 echo "Building work directory..."
  35 build_workdir "$SETS"
  36
  37 echo "Adding extra files..."
  38 workdir_add_hdd_files
  39
  40 # add kernels
  41 add_link_spec "boot/minix_latest" "minix_default" extra.kernel
  42 workdir_add_kernel minix_default
  43 workdir_add_kernel minix/$RELEASE_VERSION
  44
  45 # add boot.cfg
  46 cat >${ROOT_DIR}/boot.cfg <<END_BOOT_CFG
  47 menu=Start MINIX 3:load_mods /boot/minix_default/mod*; multiboot /boot/minix_default/kernel rootdevname=c0d0p0
  48 menu=Start latest MINIX 3:load_mods /boot/minix_latest/mod*; multiboot /boot/minix_latest/kernel rootdevname=c0d0p0
  49 menu=Start latest MINIX 3 in single user mode:load_mods /boot/minix_latest/mod*; multiboot /boot/minix_latest/kernel rootdevname=c0d0p0 bootopts=-s
  50 menu=Start MINIX 3 ALIX:load_mods /boot/minix_default/mod*;multiboot /boot/minix_default/kernel rootdevname=c0d0p0 console=tty00 consdev=com0 ata_no_dma=1
  51 menu=Edit menu option:edit
  52 menu=Drop to boot prompt:prompt
  53 clear=1
  54 timeout=5
  55 default=2
  56 menu=Start MINIX 3 ($RELEASE_VERSION):load_mods /boot/minix/$RELEASE_VERSION/mod*; multiboot /boot/minix/$RELEASE_VERSION/kernel rootdevname=c0d0p0
  57 END_BOOT_CFG
  58 add_file_spec "boot.cfg" extra.boot
  59
  60 echo "Bundling packages..."
  61 bundle_packages "$BUNDLE_PACKAGES"
  62
  63 echo "Creating specification files..."
  64 create_input_spec
  65 create_protos "usr home"
  66
  67 # Clean image
  68 if [ -f ${IMG} ]        # IMG might be a block device
  69 then
  70         rm -f ${IMG}
  71 fi
  72
  73 #
  74 # Generate /root, /usr and /home partition images.
  75 #
  76 echo "Writing disk image..."
  77
  78 # all sizes are written in 512 byte blocks
  79 ROOTSIZEARG="-b $((${ROOT_SIZE} / 512 / 8))"
  80 USRSIZEARG="-b $((${USR_SIZE} / 512 / 8))"
  81 HOMESIZEARG="-b $((${HOME_SIZE} / 512 / 8))"
  82
  83 ROOT_START=${BOOTXX_SECS}
  84 echo " * ROOT"
  85 _ROOT_SIZE=$(${CROSS_TOOLS}/nbmkfs.mfs -d ${ROOTSIZEARG} -I $((${ROOT_START}*512)) ${IMG} ${WORK_DIR}/proto.root)
  86 _ROOT_SIZE=$(($_ROOT_SIZE / 512))
  87 USR_START=$((${ROOT_START} + ${_ROOT_SIZE}))
  88 echo " * USR"
  89 _USR_SIZE=$(${CROSS_TOOLS}/nbmkfs.mfs  -d ${USRSIZEARG}  -I $((${USR_START}*512))  ${IMG} ${WORK_DIR}/proto.usr)
  90 _USR_SIZE=$(($_USR_SIZE / 512))
  91 HOME_START=$((${USR_START} + ${_USR_SIZE}))
  92 echo " * HOME"
  93 _HOME_SIZE=$(${CROSS_TOOLS}/nbmkfs.mfs -d ${HOMESIZEARG} -I $((${HOME_START}*512)) ${IMG} ${WORK_DIR}/proto.home)
  94 _HOME_SIZE=$(($_HOME_SIZE / 512))
  95
  96 #
  97 # Write the partition table using the natively compiled
  98 # minix partition utility
  99 #
 100 ${CROSS_TOOLS}/nbpartition -m ${IMG} ${BOOTXX_SECS} 81:${_ROOT_SIZE} 81:${_USR_SIZE} 81:${_HOME_SIZE}
 101 ${CROSS_TOOLS}/nbinstallboot -f -m ${ARCH} ${IMG} ${DESTDIR}/usr/mdec/bootxx_minixfs3
 102
 103 echo ""
 104 echo "Disk image at `pwd`/${IMG}"
 105 echo ""
 106 echo "To boot this image on kvm using the bootloader:"
 107 echo "qemu-system-i386 --enable-kvm -m 256 -hda `pwd`/${IMG}"
 108 echo ""
 109 echo "To boot this image on kvm:"
 110 echo "cd ${MODDIR} && qemu-system-i386 --enable-kvm -m 256M -kernel kernel -append \"rootdevname=c0d0p0\" -initrd \"${mods}\" -hda `pwd`/${IMG}"