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135 lines
2.7 KiB
Bash
135 lines
2.7 KiB
Bash
#/bin/bash
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#
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# Copyright (C) 2010 Cloud.com, Inc. All rights reserved.
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#
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# This software is licensed under the GNU General Public License v3 or later.
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#
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# It 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 3 of the License, or any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU 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, see <http://www.gnu.org/licenses/>.
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#
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# $Id: get_domr_kernel.sh 9132 2010-06-04 20:17:43Z manuel $ $HeadURL: svn://svn.lab.vmops.com/repos/vmdev/java/scripts/storage/qcow2/get_domr_kernel.sh $
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set -x
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mount_local() {
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local disk=$2
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local path=$1
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/sbin/lsmod | grep nbd &> /dev/null
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local nbd_loaded=$?
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if [ $nbd_loaded -ne 0 ]
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then
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modprobe nbd max_part=8 &> /dev/null
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if [ $? -ne 0 ]
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then
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printf "No nbd module installed, failed to mount qcow2 image\n"
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return 1
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fi
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fi
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qemu-nbd -c /dev/nbd0 $disk &> /dev/null
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if [ $? -ne 0 ]
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then
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printf "failed to create /dev/nbd0\n"
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return 2
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fi
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mkdir -p ${path}
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retry=5
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while [ $retry -gt 0 ]
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do
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sleep 2
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mount -o sync /dev/nbd0p1 ${path} &> /dev/null
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if [ $? -eq 0 ]
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then
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break
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fi
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retry=$(($retry-1))
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done
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if [ $retry -eq 0 ]
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then
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qemu-nbd -d /dev/nbd0p1 &> /dev/null
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sleep 0.5
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qemu-nbd -d /dev/nbd0 &> /dev/null
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printf "Faild to mount qcow2 image\n"
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return 3
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fi
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return $?
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}
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umount_local() {
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local path=$1
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umount $path
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qemu-nbd -d /dev/nbd0p1
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sleep 0.5
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qemu-nbd -d /dev/nbd0
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local ret=$?
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rm -rf $path
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return $ret
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}
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sflag=
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kflag=
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iflag=
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while getopts 'k:s:i:' OPTION
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do
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case $OPTION in
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k) kflag=1
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domrKern="$OPTARG"
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;;
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i) iflag=1
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domrRamfs="$OPTARG"
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;;
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s) sflag=1
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image="$OPTARG"
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;;
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*) ;;
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esac
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done
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if [ "$kflag$iflag$sflag" != "111" ]
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then
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printf "Error: no enough parameters" >&2
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exit 1
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fi
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mntPoint=`mktemp -d`
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mount_local $mntPoint $image
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if [ $? -gt 0 ]
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then
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printf "Failed to mount disk" >&2
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exit 2
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fi
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if [ -f $domrKern ]
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then
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rm -rf $domrKern
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fi
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if [ -f $domrRamfs ]
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then
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rm -rf $domrRamfs
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fi
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cp $mntPoint/boot/vmlinuz* $domrKern -f
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cp $mntPoint/boot/initramfs* $domrRamfs -f
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umount_local $mntPoint
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