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# Copyright (C) 2007, 2008, 2009 Google Inc. |
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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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|
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AWK="@AWK@" |
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DUMP="@DUMP@" |
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LOSETUP="@LOSETUP@" |
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KPARTX="@KPARTX@" |
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SFDISK="@SFDISK@" |
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QEMU_IMG="@QEMU_IMG@" |
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MKDIR_P="@MKDIR_P@" |
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|
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CLEANUP=( ) |
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|
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log_error() { |
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echo "$@" >&2 |
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} |
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|
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debug() { |
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[ "$IMAGE_DEBUG" == "1" -o "$IMAGE_DEBUG" == "yes" ] && $@ || : |
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} |
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|
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get_api5_arguments() { |
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GETOPT_RESULT=$* |
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# Note the quotes around `$TEMP': they are essential! |
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eval set -- "$GETOPT_RESULT" |
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while true; do |
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case "$1" in |
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-i|-n) instance=$2; shift 2;; |
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|
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-o) old_name=$2; shift 2;; |
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|
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-b) blockdev=$2; shift 2;; |
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|
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-s) swapdev=$2; shift 2;; |
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|
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--) shift; break;; |
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|
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*) log_error "Internal error!" >&2; exit 1;; |
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esac |
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done |
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if [ -z "$instance" -o -z "$blockdev" ]; then |
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log_error "Missing OS API Argument (-i, -n, or -b)" |
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exit 1 |
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fi |
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if [ "$SCRIPT_NAME" != "export" -a -z "$swapdev" ]; then |
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log_error "Missing OS API Argument -s (swapdev)" |
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exit 1 |
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fi |
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if [ "$SCRIPT_NAME" = "rename" -a -z "$old_name" ]; then |
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log_error "Missing OS API Argument -o (old_name)" |
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exit 1 |
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fi |
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} |
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|
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get_api10_arguments() { |
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if [ -z "$INSTANCE_NAME" -o -z "$HYPERVISOR" -o -z "$DISK_COUNT" ]; then |
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log_error "Missing OS API Variable:" |
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log_error "(INSTANCE_NAME HYPERVISOR or DISK_COUNT)" |
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exit 1 |
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fi |
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instance=$INSTANCE_NAME |
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if [ $DISK_COUNT -lt 1 -o -z "$DISK_0_PATH" ]; then |
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log_error "At least one disk is needed" |
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exit 1 |
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fi |
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if [ "$SCRIPT_NAME" = "export" ]; then |
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if [ -z "$EXPORT_DEVICE" ]; then |
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log_error "Missing OS API Variable EXPORT_DEVICE" |
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fi |
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blockdev=$EXPORT_DEVICE |
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elif [ "$SCRIPT_NAME" = "import" ]; then |
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if [ -z "$IMPORT_DEVICE" ]; then |
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log_error "Missing OS API Variable IMPORT_DEVICE" |
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fi |
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blockdev=$IMPORT_DEVICE |
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else |
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blockdev=$DISK_0_PATH |
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fi |
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if [ "$SCRIPT_NAME" = "rename" -a -z "$OLD_INSTANCE_NAME" ]; then |
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log_error "Missing OS API Variable OLD_INSTANCE_NAME" |
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fi |
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old_name=$OLD_INSTANCE_NAME |
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} |
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|
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get_api20_parameters() { |
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if [ -z "$OSP_IMG_ID" -o -z "$OSP_IMG_FORMAT" -o -z "$OSP_IMG_PASSWD" ]; then |
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log_error "Missing OS API Parameter:" |
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log_error "(OSP_IMG_ID or OSP_IMG_FORMAT or OSP_IMG_PASSWD)" |
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exit 1 |
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fi |
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IMG_ID=$OSP_IMG_ID |
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IMG_FORMAT=$OSP_IMG_FORMAT |
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IMG_PASSWD=$OSP_IMG_PASSWD |
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} |
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|
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get_os_type() { |
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target=$1 |
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if [ -z "${target}" ] ; then |
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log_error "target is not set in get_os_type" |
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exit 1 |
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fi |
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if [ -e ${target}/etc/redhat-release ] ; then |
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OS_TYPE="redhat" |
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elif [ -e ${target}/etc/debian_version ] ; then |
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OS_TYPE="debian" |
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elif [ -e ${target}/etc/gentoo-release ] ; then |
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OS_TYPE="gentoo" |
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elif [ -e ${target}/etc/SuSE-release ] ; then |
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OS_TYPE="suse" |
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fi |
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} |
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|
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get_os() { |
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target=$1 |
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if [ -z "${target}" ] ; then |
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log_error "target is not set in get_os" |
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exit 1 |
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fi |
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if [ -e ${target}/etc/debian_version ] ; then |
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if [ -e ${target}/etc/lsb-release ] ; then |
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ID=$(grep ^DISTRIB_ID= ${target}/etc/lsb-release | cut -d= -f2) |
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fi |
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if [ "a$ID" = "aUbuntu" ] ; then |
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OPERATING_SYSTEM="ubuntu" |
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else |
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OPERATING_SYSTEM="debian" |
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fi |
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elif [ -e ${target}/etc/gentoo-release ] ; then |
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OPERATING_SYSTEM="gentoo" |
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elif [ -e ${target}/etc/fedora-release ] ; then |
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OPERATING_SYSTEM="fedora" |
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elif [ -e ${target}/etc/redhat-release ] ; then |
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if [ -n "$(grep -i centos ${target}/etc/redhat-release)" ] ; then |
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OPERATING_SYSTEM="centos" |
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else |
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OPERATING_SYSTEM="redhat" |
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fi |
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fi |
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} |
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|
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get_os_release() { |
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target=$1 |
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if [ -z "${target}" ] ; then |
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log_error "target is not set in get_os_release" |
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exit 1 |
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fi |
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if [ -e ${target}/etc/debian_version ] ; then |
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OS_RELEASE="$(cat ${target}/etc/debian_version)" |
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elif [ -e ${target}/etc/fedora-release ] ; then |
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OS_RELEASE="$(cat ${target}/etc/fedora-release | awk '{print $3}')" |
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elif [ -e ${$target}/etc/redhat-release ] ; then |
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OS_RELEASE="$(cat ${target}/etc/redhat-release | awk '{print $3}')" |
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fi |
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} |
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|
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format_disk0() { |
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local sfdisk_cmd="$SFDISK -uM -H 255 -S 63 --quiet --Linux --DOS $1" |
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if [ "${SWAP}" = "yes" -a "${BOOT}" = "yes" ] ; then |
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# Create three partitions: |
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# 1 - 100MB /boot, bootable |
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# 2 - Size of Memory, swap |
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# 3 - Rest |
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$sfdisk_cmd > /dev/null <<EOF |
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,100,L,* |
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,${SWAP_SIZE},S |
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,,L |
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EOF |
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elif [ "${SWAP}" = "no" -a "${BOOT}" = "yes" ] ; then |
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# Create two partitions: |
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# 1 - 100MB /boot, bootable |
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# 2 - Rest |
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$sfdisk_cmd > /dev/null <<EOF |
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,100,L,* |
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,,L |
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EOF |
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elif [ "${SWAP}" = "yes" -a "${BOOT}" = "no" ] ; then |
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# Create two partitions: |
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# 1 - Size of Memory, swap |
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# 2 - Rest |
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$sfdisk_cmd > /dev/null <<EOF |
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,$SWAP_SIZE,S |
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,,L |
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EOF |
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elif [ "${SWAP}" = "no" -a "${BOOT}" = "no" ] ; then |
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# Create two partitions: |
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# 1 - Whole |
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$sfdisk_cmd > /dev/null <<EOF |
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,,L |
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EOF |
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fi |
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} |
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|
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mkfs_disk0() { |
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local mkfs="mkfs.${FILESYSTEM}" |
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|
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if [[ "$FILESYSTEM" == ext[123] ]] ; then |
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# Some GRUB legacy versions like the one used by CentOS 5.x have issues |
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# with 256 byte inode size which is the default for recent versions of |
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# e2fsprogs. We'll stick with 128 bytes for now. |
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mkfs+=" -I 128" |
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fi |
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|
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# Format / |
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$mkfs -Fq -L / $root_dev > /dev/null |
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# Format /boot |
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if [ -n "${boot_dev}" ] ; then |
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$mkfs -Fq -L /boot $boot_dev > /dev/null |
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fi |
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# Format swap |
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if [ -n "${swap_dev}" ] ; then |
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# Format swap |
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mkswap -f $swap_dev > /dev/null |
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fi |
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# During reinstalls, ext4 needs a little time after a mkfs so add it here |
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# and also run a sync to be sure. |
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sync |
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sleep 2 |
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} |
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|
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mount_disk0() { |
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local target=$1 |
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mount $root_dev $target |
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CLEANUP+=("umount $target") |
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if [ -n "${boot_dev}" ] ; then |
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$MKDIR_P $target/boot |
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mount $boot_dev $target/boot |
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CLEANUP+=("umount $target/boot") |
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fi |
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# sync the file systems before unmounting to ensure everything is flushed |
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# out |
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CLEANUP+=("sync") |
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} |
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|
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map_disk0() { |
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blockdev="$1" |
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filesystem_dev_base=`$KPARTX -l -p- $blockdev | \ |
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grep -m 1 -- "-1.*$blockdev" | \ |
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$AWK '{print $1}'` |
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if [ -z "$filesystem_dev_base" ]; then |
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log_error "Cannot interpret kpartx output and get partition mapping" |
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exit 1 |
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fi |
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$KPARTX -a -p- $blockdev > /dev/null |
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filesystem_dev="/dev/mapper/${filesystem_dev_base/%-1/}" |
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if [ ! -b "/dev/mapper/$filesystem_dev_base" ]; then |
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log_error "Can't find kpartx mapped partition: /dev/mapper/$filesystem_dev_base" |
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exit 1 |
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fi |
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echo "$filesystem_dev" |
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} |
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|
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map_partition() { |
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filesystem_dev="$1" |
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partition="$2" |
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if [ "${SWAP}" = "yes" -a "${BOOT}" = "yes" ] ; then |
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boot_dev="${filesystem_dev}-1" |
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swap_dev="${filesystem_dev}-2" |
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root_dev="${filesystem_dev}-3" |
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elif [ "${SWAP}" = "no" -a "${BOOT}" = "yes" ] ; then |
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boot_dev="${filesystem_dev}-1" |
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root_dev="${filesystem_dev}-2" |
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elif [ "${SWAP}" = "yes" -a "${BOOT}" = "no" ] ; then |
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swap_dev="${filesystem_dev}-1" |
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root_dev="${filesystem_dev}-2" |
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elif [ "${SWAP}" = "no" -a "${BOOT}" = "no" ] ; then |
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root_dev="${filesystem_dev}-1" |
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fi |
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echo "$(eval "echo \${$(echo ${partition}_dev)"})" |
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} |
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|
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unmap_disk0() { |
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$KPARTX -d -p- $1 |
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} |
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|
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setup_fstab() { |
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local target=$1 fs=${FILESYSTEM} |
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get_os_type $target |
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cat > $target/etc/fstab <<EOF |
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# /etc/fstab: static file system information. |
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# |
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# <file system> <mount point> <type> <options> <dump> <pass> |
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UUID=$root_uuid / $fs defaults 0 1 |
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proc /proc proc defaults 0 0 |
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EOF |
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|
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if [ -n "$boot_dev" -a -n "$boot_uuid" ] ; then |
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cat >> $target/etc/fstab <<EOF |
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UUID=$boot_uuid /boot $fs defaults 1 2 |
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EOF |
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fi |
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|
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if [ -n "$swap_dev" -a -n "$swap_uuid" ] ; then |
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cat >> $target/etc/fstab <<EOF |
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UUID=$swap_uuid swap swap defaults 0 0 |
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EOF |
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fi |
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|
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# OS Specific fstabs |
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if [ "$OS_TYPE" = "redhat" ] ; then |
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cat >> $target/etc/fstab <<EOF |
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tmpfs /dev/shm tmpfs defaults 0 0 |
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devpts /dev/pts devpts gid=5,mode=620 0 0 |
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sysfs /sys sysfs defaults 0 0 |
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EOF |
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fi |
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|
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if [ "$OS_TYPE" = "gentoo" ] ; then |
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cat >> $target/etc/fstab <<EOF |
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shm /dev/shm tmpfs nodev,nosuid,noexec 0 0 |
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EOF |
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fi |
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} |
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|
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setup_console() { |
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local target=$1 |
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if [ -z "$target" ] ; then |
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log_error "target not set for setup_console" |
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exit 1 |
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fi |
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# Upstart is on this system, so do this instead |
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if [ -e ${target}/etc/event.d/tty1 ] ; then |
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cat ${target}/etc/event.d/tty1 | sed -re 's/tty1/ttyS0/' \ |
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> ${target}/etc/event.d/ttyS0 |
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return |
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fi |
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# upstart in karmic and newer |
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if [ -e ${target}/etc/init/tty1.conf ] ; then |
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cat ${target}/etc/init/tty1.conf | \ |
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sed -re 's/^exec.*/exec \/sbin\/getty -L 115200 ttyS0 vt102/' \ |
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> ${target}/etc/init/ttyS0.conf |
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sed -ie 's/tty1/ttyS0/g' ${target}/etc/init/ttyS0.conf |
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return |
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fi |
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get_os $target |
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case $OPERATING_SYSTEM in |
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gentoo) |
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sed -i -e 's/.*ttyS0.*/s0:12345:respawn:\/sbin\/agetty 115200 ttyS0 vt100/' \ |
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${target}/etc/inittab |
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;; |
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centos) |
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echo "s0:12345:respawn:/sbin/agetty 115200 ttyS0 vt100" >> \ |
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${target}/etc/inittab |
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;; |
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debian|ubuntu) |
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sed -i -e 's/.*T0.*/T0:23:respawn:\/sbin\/getty -L ttyS0 115200 vt100/' \ |
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${target}/etc/inittab |
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;; |
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*) |
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echo "No support for your OS in instance-image, skipping..." |
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;; |
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esac |
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} |
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|
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epilogue() { |
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local target=$1 |
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if [ -z "$target" ] ; then |
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log_error "target not set for filesystem_check" |
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exit 1 |
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fi |
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|
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get_os_type $target |
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if [ "${OS_TYPE}" = "redhat" ]; then |
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# we have to force a filesystem relabeling for SELinux after messing |
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# around with the filesystem in redhat-derived OSs |
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echo "Enforce an automatic relabeling in the initial boot process..." |
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touch $target/.autorelabel |
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fi |
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} |
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|
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cleanup() { |
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# if something fails here, it souldn't call cleanup again... |
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trap - EXIT |
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|
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if [ ${#CLEANUP[*]} -gt 0 ]; then |
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LAST_ELEMENT=$((${#CLEANUP[*]}-1)) |
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REVERSE_INDEXES=$(seq ${LAST_ELEMENT} -1 0) |
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for i in $REVERSE_INDEXES; do |
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# If something fails here, it's better to retry it for a few times |
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# before we give up with an error. This is needed for kpartx when |
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# dealing with ntfs partitions mounted through fuse. umount is not |
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# synchronous and may return while the partition is still busy. A |
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# premature attempt to delete partition mappings through kpartx on a |
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# device that hosts previously mounted ntfs partition may fail with an |
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# `device-mapper: remove ioctl failed: Device or resource busy' |
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# error. A sensible workaround for this is to wait for a while and then |
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# try again. |
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local cmd=${CLEANUP[$i]} |
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$cmd || for interval in 0.25 0.5 1 2 4; do |
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echo "Command $cmd failed!" |
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echo "I'll wait for $interval secs and will retry..." |
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sleep $interval |
408 |
$cmd && break |
409 |
done |
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test $? -eq 1 && { echo "Giving Up..."; exit 1; } |
411 |
done |
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fi |
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echo "Clean UP executed" |
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} |
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|
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trap cleanup EXIT |
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|
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DEFAULT_FILE="@DEFAULT_DIR@/ganeti-instance-image" |
419 |
if [ -f "$DEFAULT_FILE" ]; then |
420 |
. "$DEFAULT_FILE" |
421 |
fi |
422 |
|
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# note: we don't set a default mirror since debian and ubuntu have |
424 |
# different defaults, and it's better to use the default |
425 |
|
426 |
# only if the user want to specify a mirror in the defaults file we |
427 |
# will use it, this declaration is to make sure the variable is set |
428 |
: ${CDINSTALL:="no"} |
429 |
: ${BOOT:="no"} |
430 |
: ${SWAP:="yes"} |
431 |
: ${SWAP_SIZE:="${INSTANCE_BE_memory}"} |
432 |
: ${FILESYSTEM:="ext3"} |
433 |
: ${KERNEL_ARGS=""} |
434 |
: ${OVERLAY=""} |
435 |
: ${IMAGE_NAME:=""} |
436 |
: ${IMAGE_TYPE:="dump"} |
437 |
: ${NOMOUNT:="no"} |
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: ${ARCH:=""} |
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: ${CUSTOMIZE_DIR:="@sysconfdir@/ganeti/instance-image/hooks"} |
440 |
: ${VARIANTS_DIR:="@sysconfdir@/ganeti/instance-image/variants"} |
441 |
: ${NETWORKS_DIR:="@sysconfdir@/ganeti/instance-image/networks"} |
442 |
: ${OVERLAYS_DIR:="@sysconfdir@/ganeti/instance-image/overlays"} |
443 |
: ${IMAGE_DIR:="@localstatedir@/cache/ganeti-instance-image"} |
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: ${IMAGE_DEBUG:="no"} |
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: ${TOOLS_DIR:="@OS_DIR@/@OS_NAME@/tools"} |
446 |
|
447 |
SCRIPT_NAME=$(basename $0) |
448 |
KERNEL_PATH="$INSTANCE_HV_kernel_path" |
449 |
|
450 |
if [ -f /sbin/blkid -a -x /sbin/blkid ]; then |
451 |
VOL_ID="/sbin/blkid -c /dev/null -o value -s UUID" |
452 |
VOL_TYPE="/sbin/blkid -c /dev/null -o value -s TYPE" |
453 |
else |
454 |
for dir in /lib/udev /sbin; do |
455 |
if [ -f $dir/vol_id -a -x $dir/vol_id ]; then |
456 |
VOL_ID="$dir/vol_id -u" |
457 |
VOL_TYPE="$dir/vol_id -t" |
458 |
fi |
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done |
460 |
fi |
461 |
|
462 |
if [ -z "$VOL_ID" ]; then |
463 |
log_error "vol_id or blkid not found, please install udev or util-linux" |
464 |
exit 1 |
465 |
fi |
466 |
|
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|
468 |
if [ -z "$OS_API_VERSION" -o "$OS_API_VERSION" = "5" ]; then |
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OS_API_VERSION=5 |
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GETOPT_RESULT=`getopt -o o:n:i:b:s: -n '$0' -- "$@"` |
471 |
if [ $? != 0 ] ; then log_error "Terminating..."; exit 1 ; fi |
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get_api5_arguments $GETOPT_RESULT |
473 |
elif [ "$OS_API_VERSION" = "10" -o "$OS_API_VERSION" = "15" ]; then |
474 |
get_api10_arguments |
475 |
elif [ "$OS_API_VERSION" = "20" ]; then |
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get_api10_arguments |
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get_api20_parameters |
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IMAGE_NAME=$IMG_ID |
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else |
480 |
log_error "Unknown OS API VERSION $OS_API_VERSION" |
481 |
exit 1 |
482 |
fi |
483 |
|
484 |
if [ -n "$OS_VARIANT" ]; then |
485 |
if [ ! -d "$VARIANTS_DIR" ]; then |
486 |
log_error "OS Variants directory $VARIANTS_DIR doesn't exist" |
487 |
exit 1 |
488 |
fi |
489 |
VARIANT_CONFIG="$VARIANTS_DIR/$OS_VARIANT.conf" |
490 |
if [ -f "$VARIANT_CONFIG" ]; then |
491 |
. "$VARIANT_CONFIG" |
492 |
else |
493 |
if grep -qxF "$OS_VARIANT" variants.list; then |
494 |
log_error "ERROR: instance-image configuration error" |
495 |
log_error " Published variant $OS_VARIANT is missing its config file" |
496 |
log_error " Please create $VARIANT_CONFIG or unpublish the variant" |
497 |
log_error " (by removing $OS_VARIANT from variants.list)" |
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else |
499 |
log_error "Unofficial variant $OS_VARIANT is unsupported" |
500 |
log_error "Most probably this is a user error, forcing a wrong name" |
501 |
log_error "To support this variant please create file $VARIANT_CONFIG" |
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fi |
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exit 1 |
504 |
fi |
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fi |
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|