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#!/bin/bash
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# Copyright (C) 2010 Oregon State University
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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set -e
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. common.sh
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debug set -x
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OS_FAMILY="linux"
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if [ "$IMAGE_TYPE" = "tarball" ] ; then
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    IMAGE_FILE="${IMAGE_DIR}/${IMAGE_NAME}-${ARCH}.tar.gz"
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elif [ "$IMAGE_TYPE" = "qemu" ] ; then
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    IMAGE_FILE="${IMAGE_DIR}/${IMAGE_NAME}-${ARCH}.img"
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elif [ "$IMAGE_TYPE" = "dump" ] ; then
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    IMAGE_FILE="${IMAGE_DIR}/${IMAGE_NAME}-${ARCH}-root.dump"
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elif [ "$IMAGE_TYPE" = "ntfsclone" ]; then
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    IMAGE_FILE="${IMAGE_DIR}/${IMAGE_NAME}-${ARCH}.img"
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    OS_FAMILY="windows"
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fi
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if [ "$OS_FAMILY" = "linux" ]; then
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    . common_linux.sh
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elif [ "$OS_FAMILY" = "windows" ]; then
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    . common_windows.sh
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    SWAP="no"
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fi
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if [ "$CDINSTALL" = "no" ] ; then
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    # If the target device is not a real block device we'll first losetup it.
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    # This is needed for file disks.
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    if [ ! -b $blockdev ]; then
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      ORIGINAL_BLOCKDEV=$blockdev
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      blockdev=$($LOSETUP -sf $blockdev)
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      CLEANUP+=("$LOSETUP -d $blockdev")
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    fi
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    if [ ! -f "$IMAGE_FILE" ] ; then
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      log_error "Can't find image file: $IMAGE_FILE"
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      exit 1
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    fi
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    # If the image is tarball based, then we need to manually create the
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    # volumes, filesystems, etc
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    if [ "${IMAGE_TYPE}" = "tarball" -o "${IMAGE_TYPE}" = "dump" ] ; then
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        # Create 3 partitions, /boot, swap, & /
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        ${OS_FAMILY}_format_disk0 $blockdev
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    elif [ "${IMAGE_TYPE}" = "qemu" ] ; then
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        # need a recent version of qemu for this
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        ${QEMU_IMG} convert ${IMAGE_FILE} -O host_device ${blockdev} > /dev/null
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    elif [ "${IMAGE_TYPE}" = "ntfsclone" ] ; then
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        ${OS_FAMILY}_format_disk0 $blockdev
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    fi
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    # deploying something like a windows image, skip the rest
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    if [ "${NOMOUNT}" = "yes" ] ; then
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      cleanup
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      exit 0
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    fi
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    filesystem_dev=$(map_disk0 $blockdev)
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    CLEANUP+=("unmap_disk0 $blockdev")
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    root_dev=$(map_partition $filesystem_dev root)
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    boot_dev=$(map_partition $filesystem_dev boot)
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    swap_dev=$(map_partition $filesystem_dev swap)
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    # Check partition existence
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    if [ ! -e "$root_dev" ] ; then
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        log_error "Root partition: $root_dev does not exist!"
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        exit 1;
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    fi
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    if [ -n "$boot_dev" -a ! -e "$boot_dev" ] ; then
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        log_error "Boot partition: $boot_dev does not exist!"
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        exit 1;
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    fi
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    if [ -n "$swap_dev" -a ! -e "$swap_dev" ] ; then
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        log_error "Swap partiion: $swap_dev does not exist!"
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        exit 1;
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    fi
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    if [ "${IMAGE_TYPE}" = "tarball" -o "${IMAGE_TYPE}" = "dump" ] ; then
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        ${OS_FAMILY}_mkfs_disk0
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        root_uuid="$($VOL_ID $root_dev)"
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        [ -n "$boot_dev" ] && sleep 1 && boot_uuid="$($VOL_ID $boot_dev)"
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        [ -n "$swap_dev" ] && sleep 1 && swap_uuid="$($VOL_ID $swap_dev)"
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    fi
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    TARGET=`mktemp -d` || exit 1
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    CLEANUP+=("rmdir $TARGET")
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    if [ "${IMAGE_TYPE}" = "ntfsclone" ] ; then
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        ntfsclone --restore-image --overwrite $root_dev $IMAGE_FILE
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    fi
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    # mount filesystems
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    mount_disk0 $TARGET
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    if [ "${IMAGE_TYPE}" = "tarball" ] ; then
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        # unpack image
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        tar pzxf $IMAGE_FILE -C $TARGET
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    elif [ "${IMAGE_TYPE}" = "dump" ] ; then
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        root_dump="${IMAGE_FILE}"
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        ( cd ${TARGET}; restore -r -y -f ${root_dump} > /dev/null )
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        if [ -n "${boot_dev}" ] ; then
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            boot_dump="${IMAGE_FILE/root.dump/boot.dump}"
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            if [ ! -f "$boot_dump" ] ; then
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              log_error "Can't find image file: $boot_dump"
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              exit 1
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            fi
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            ( cd ${TARGET}/boot; restore -r -y -f ${boot_dump} > /dev/null )
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        fi
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    fi
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    if [ "${IMAGE_TYPE}" = "tarball" -o "${IMAGE_TYPE}" = "dump" ] ; then
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        ${OS_FAMILY}_setup_fstab $TARGET
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    fi
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    if [ "${INSTANCE_HV_serial_console}" = "True" ] ; then
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        ${OS_FAMILY}_setup_console $TARGET
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    fi
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    ${OS_FAMILY}_filesystem_check $TARGET
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    RUN_PARTS=`which run-parts`
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    if [ -n "$RUN_PARTS" -a -n "$CUSTOMIZE_DIR" -a -d "${CUSTOMIZE_DIR}/$OS_FAMILY" ]; then
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      TARGET=$TARGET
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      BLOCKDEV=$blockdev
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      ROOT_DEV=$root_dev
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      BOOT_DEV=$boot_dev
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      IMG_PASSWD=$IMG_PASSWD
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      export TARGET SUITE BLOCKDEV ROOT_DEV BOOT_DEV IMAGE_TYPE IMG_PASSWD
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      $RUN_PARTS $CUSTOMIZE_DIR/$OS_FAMILY
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    fi
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fi
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# execute cleanups
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cleanup
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trap - EXIT
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exit 0