237fd64b47
Commit 0210be22ae introduced the
possibility of basename being called on an empty string. Because
that can happen in normal operation (such as an x86_64 kernel,
in which case the PAE check will find nothing), don't allow the
basename error to kill the script. Also ignore failures in the
second basename call so the proper error message is echoed.
Change-Id: I38a18af09ab24fda9c98cbf3ace8fd7acc6faef5
122 lines
3.6 KiB
Bash
Executable file
122 lines
3.6 KiB
Bash
Executable file
#!/bin/bash
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#
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# Copyright 2012 Hewlett-Packard Development Company, L.P.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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set -e
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SCRIPTNAME=$(basename $0)
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SCRIPT_HOME=$(dirname $0)
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if [ -d $SCRIPT_HOME/../share/diskimage-builder ]
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then
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export _PREFIX=$SCRIPT_HOME/../share/diskimage-builder
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else
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export _PREFIX=$SCRIPT_HOME/..
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fi
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export _LIB=$_PREFIX/lib
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source $_LIB/die
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function show_options () {
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echo "Usage: $SCRIPTNAME -i <image> [-d <outdir>] [-o <prefix]"
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echo
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echo "Options:"
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echo " -i filename -- extract kernel + ramdisk from this file"
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echo " -d dir -- save files in \$dir; defaults to /tmp"
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echo " -o prefix -- set the prefix of the output files; defaults to 'baremetal'"
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echo " eg, baremetal-vmlinuz and baremetal-initrd"
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echo " -x -- turn on tracing"
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echo " -h -- print this message"
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exit 0
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}
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TEMP=`getopt -o hd:i:o:x -n $SCRIPTNAME -- "$@"`
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echo "XXX $TEMP"
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if [ $? != 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi
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# Note the quotes around `$TEMP': they are essential!
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eval set -- "$TEMP"
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export OUT_DIR=/tmp
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export OUT_PFX=baremetal
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while true ; do
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case "$1" in
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-d) export OUT_DIR=$2; shift 2 ;;
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-i) export IMAGE_FILE=$2; shift 2 ;;
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-o) export OUT_PFX=$2; shift 2 ;;
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-h) show_options;;
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-x) shift; set -x;;
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--) shift ; break ;;
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*) echo "Internal error!" ; exit 1 ;;
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esac
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done
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if [[ ! -n "$IMAGE_FILE" ]]; then
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die "You must specify an image to read from with -i \$filename"
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elif [[ ! -r "$IMAGE_FILE" ]]; then
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die "Image file $IMAGE_FILE is not readable"
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fi
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source $_LIB/img-defaults
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source $_LIB/common-functions
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source $_LIB/img-functions
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echo "Extracting kernel + ramdisk from $IMAGE_FILE and writing them to $OUT_DIR"
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ensure_nbd
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# sets WORK_DIR
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mount_qcow_image $IMAGE_FILE
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# Dig up the initrd and kernel to use.
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BOOTDIR="$WORK_DIR/boot"
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KERNEL=
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RAMDISK=
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if [ -f $WORK_DIR/etc/redhat-release ]; then
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# Prioritize PAE if present
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KERNEL=$(basename `ls -1rv $BOOTDIR/vmlinuz* | grep PAE | grep -v debug | head -1` || /bin/true)
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if [ ! $KERNEL ]; then
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KERNEL=$(basename `ls -1rv $BOOTDIR/vmlinuz* | grep -v debug | head -1` || /bin/true)
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if [ ! $KERNEL ]; then
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echo "No suitable kernel found."
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exit 1
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fi
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fi
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KERNEL_VERSION=`echo $KERNEL | sed 's/vmlinuz-//g'`
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RAMDISK=$(basename `ls $BOOTDIR/initramfs-$KERNEL_VERSION.img`)
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if [ ! $RAMDISK ]; then
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echo "Can't find an initramfs for the $KERNEL_VERSION version of the kernel."
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exit 1
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fi
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elif [ -f $WORK_DIR/etc/debian_version ]; then
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KERNEL=$(basename `ls -1rv $BOOTDIR/vmlinuz*generic | head -1`)
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RAMDISK=$(basename `ls -1rv $BOOTDIR/initrd*generic | head -1`)
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else
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echo "ERROR: Unable to detect operating system"
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exit 1
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fi
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sudo cp $BOOTDIR/$KERNEL $OUT_DIR/$OUT_PFX-vmlinuz
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sudo cp $BOOTDIR/$RAMDISK $OUT_DIR/$OUT_PFX-initrd
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sudo chmod a+r $OUT_DIR/$OUT_PFX-vmlinuz
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sudo chmod a+r $OUT_DIR/$OUT_PFX-initrd
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unmount_qcow_image
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echo "$OUT_PFX-vmlinuz,$OUT_PFX-initrd"
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