ovirt-flash-static

   1 #!/bin/bash
   2 #
   3 # Create an Ovirt Host USB device (stateful)
   4 # Copyright 2008 Red Hat, Inc.
   5 # Written by Chris Lalancette <clalance@redhat.com>
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; version 2 of the License.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU Library General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19
  20 ME=$(basename "$0")
  21 warn() { printf '%s: %s\n' "$ME" "$*" >&2; }
  22 die() { warn "$@"; exit 1; }
  23
  24 test $# != 2 && die "Usage: $ME <usbdevice> <iso-image>"
  25
  26 USBDEVICE=$1
  27 ISO=$2
  28
  29 test ! -r $ISO && die "$ISO is not a readable file"
  30 test ! -b $USBDEVICE && die "$USBDEVICE is not a valid block device"
  31 test $( id -u ) -ne 0 && die "$ME must run as root"
  32
  33 IMGTMP=/var/tmp/ovirt-$$
  34 SQUASHTMP=/var/tmp/ovirt-squash-$$
  35 USBTMP=/var/tmp/ovirt-usb-$$
  36
  37 # do setup
  38 mkdir -p $IMGTMP $SQUASHTMP $USBTMP
  39 mount -o loop $ISO $IMGTMP
  40 mount -o loop $IMGTMP/LiveOS/squashfs.img $SQUASHTMP
  41
  42 # clear out the old partition table
  43 dd if=/dev/zero of=$USBDEVICE bs=4096 count=1
  44 printf 'n\np\n1\n\n\nt\n83\na\n1\nw\n' | fdisk $USBDEVICE
  45
  46 cat /usr/lib/syslinux/mbr.bin > $USBDEVICE
  47 dd if=$SQUASHTMP/LiveOS/ext3fs.img of=${USBDEVICE}1
  48
  49 mount ${USBDEVICE}1 $USBTMP
  50
  51 cp $IMGTMP/isolinux/* $USBTMP
  52
  53 rm -f $USBTMP/isolinux.bin
  54 mv $USBTMP/isolinux.cfg $USBTMP/extlinux.conf
  55
  56 LABEL=`echo $ISO | cut -d'.' -f1 | cut -c-16`
  57 sed -i -e "s/ *append.*/  append initrd=initrd.img root=LABEL=$LABEL ro/" $USBTMP/extlinux.conf
  58
  59 extlinux -i $USBTMP
  60
  61 umount $USBTMP
  62 umount $SQUASHTMP
  63 umount $IMGTMP
  64 rm -rf $SQUASHTMP $IMGTMP $USBTMP