Added Files:
Tag: 1.17 mkbimage: dependent on GRUB and existed elsewhere. Now put at home and tagged to follow the original revision number.
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tlaronde
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1 changed files with 411 additions and 0 deletions
411
util/mkbimage
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411
util/mkbimage
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#!/bin/sh
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# MaKe a Bootable IMAGE --- 1.44, 2.88 and El Torito no-emulation mode
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# C) 2001,2002,2003 Thierry Laronde <tlaronde@polynum.org>
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# C) 2001,2002,2003 Robert Millan <zeratul2@wanadoo.es>
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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, or (at your option)
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# any later version.
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#
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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, you can either send email to this
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# program's maintainer or write to: The Free Software Foundation,
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# Inc.; 59 Temple Place, Suite 330; Boston, MA 02111-1307, USA.
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# $Id$
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# Global variables
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tarfile=
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dir=
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fs= #file system type
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decompress=
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image_type=
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uname=`uname -s`
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PATH=/sbin:$PATH
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# You can set GRUB_PATH if you need to use a specially located GRUB.
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# This MUST end by a '/'!
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#----------------------------DON'T CHANGE: INTERNALS
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block_size=512
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cylinders=
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heads=
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sectors=
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cyl_size=
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type_option=
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geo_option=
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image=
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bk_120=$((2 * 15 * 80))
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bk_144=$((2 * 18 * 80))
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bk_288=$((2 * 36 * 80))
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bk_160=$((2 * 20 * 80))
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bk_168=$((2 * 21 * 80))
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bk_174=$((2 * 21 * 83))
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lo_options=
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device_map=
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mkfs_options=
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debug=
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stage2_os_name=
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# Name by which this script was invoked.
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program=`echo "$0" | sed -e 's/[^\/]*\///g'`
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version_number='$Revision$'
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usage="
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Usage: $program [-hVF] [-t TYPE] [-d DIRECTORY] [-s FS_TYPE] -f TAR_FILE
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Make a Bootable IMAGE using GRUB as a bootloader
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Options:
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Actions:
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-d DIRECTORY [default CWD]
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Directory where the boot.image and the partition subdirectories
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are/will be created
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-f TAR_FILE
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Name of the tar file containing the filesystem to install. Can
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be a pure tar file [.tar] or a compressed tar file
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[.tar.gz|.tar.bz2]
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-s FS_TYPE
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Type of the file system to create on the virtual disk. Choices
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are:
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ext2 on GNU [default is ext2]
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ext2, minix or msdos on GNU/Linux [default is ext2]
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-t TYPE
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Type of the image to create. Choices are '1.20', '1.44', '1.60',
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'1.68', '1.74', '2.88' or 'hd' [default is hd]
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-F
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Force to set the set_dpt flag (unnecessary 99% of the time! Be
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careful!
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Informations:
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-D
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turn Debugging on [xtrace]
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-h|--help
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display this Help and exit
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-V|--version
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display Version information and exit
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Copyright (c) 2001,2002,2003 Thierry Laronde <tlaronde@polynum.org>.
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Copyright (c) 2001,2002 Robert Millan <zeratul2@wanadoo.es>.
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GPLed."
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version="mkbimage $version_number
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Written by Thierry Laronde and Robert Millan.
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Copyright (c) 2001,2002,2003 Thierry Laronde <tlaronde@polynum.org>.
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Copyright (c) 2001,2002,2003 Robert Millan <zeratul2@wanadoo.es>.
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This is free software under the GPL version 2 or later; see the source for
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copying conditions. There is NO warranty, not even for MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE."
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# Functions
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error ()
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{
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case $1 in
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bug) echo "This is a bug!";
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echo "$usage";;
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option) echo "Unknow option"; echo "$usage";;
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missing_argument) echo "You must give an argument to the option!";
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echo "$usage";;
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missing_option) echo "You must indicate at least one option!";
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echo "$usage";;
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must_be_root) echo "You must be root! (or install e2tools/mtools)";;
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unknown_fs) if [ $uname = Linux ];
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then echo "The GNU/Linux supported fs are: ext2, minix or msdos!";
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elif [ $uname = GNU ];
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then echo "The GNU supported fs is ext2!";
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fi;;
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unknown_format) echo "The tar file must be .tar|.tar.gz|.tar.bz2!";;
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wont_fit) echo "The files won't fit on the selected type of media!";;
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wrong_directory) echo "Directory inexistant or not given!";
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echo "$usage";;
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wrong_file) echo "File inexistant or empty!";
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echo "$usage";;
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wrong_type) echo "The type specified is not a valid one!";
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echo "$usage";;
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esac
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exit 1
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}
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# create a filesystem of type $fs in $image with offset $offset
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mkbimage_mkfs ()
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{
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case $offset in
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0) lo_options="";;
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*) lo_options="-o $offset";;
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esac
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if [ "$offset" = "0" ] ; then
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mkfs.$fs -F $image
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elif [ `id -u` = "0" ] ; then
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losetup $lo_options /dev/loop1 $image
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mkfs.$fs /dev/loop1
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losetup -d /dev/loop1
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else
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error must_be_root
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fi
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}
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# copy ${image}1/* to ${image}:/, assuming ${image} contains a filesystem
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# of type $fs in offset $offset
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mkbimage_cp ()
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{
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case $offset in
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0) lo_options="";;
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*) lo_options="-o $offset";;
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esac
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case $fs in
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ext2)
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cp="e2cp";
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mkdir="e2mkdir";;
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vfat)
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cp="mcopy";
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mkdir="mmd";;
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*)
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cp="";
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mkdir="";;
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esac
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if [ "$offset" = 0 ] && which $cp > /dev/null ; then
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$mkdir ${image}:/boot
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$mkdir ${image}:/boot/grub
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$cp ${image}1/boot/grub/* ${image}:/boot/grub/
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elif [ "`id -u`" = "0" ] ; then
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losetup $lo_options /dev/loop1 $image
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mkdir ${image}.mnt
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mount -t $fs /dev/loop1 ${image}.mnt
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cp -a ${image}1/* ${image}.mnt/ && sync
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umount ${image}.mnt
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rmdir ${image}.mnt
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losetup -d /dev/loop1
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else
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error must_be_root
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fi
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}
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#**********************************************************************
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# MAIN PROGRAM *
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#**********************************************************************
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#---------------------- Getting the options
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[ $# -eq 0 ] && error missing_option;
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while [ $# -gt 0 ]; do
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case "$1" in
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-d) shift;
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dir="$1";
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[ ! -d "$1" ] && error wrong_directory;;
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-f) shift;
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tarfile="$1";
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[ -z "$tarfile" ] && error missing_argument;;
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-s) shift;
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fs="$1";;
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-t) shift;
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image_type="$1";;
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-F) geo_option="-F";;
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-D) debug="-v";
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set -x;;
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-h|--help) echo "$usage"; exit 0;;
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-V|--version) echo "$version"; exit 0;;
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*) error option ;;
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esac
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shift
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done
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#---------------------- Sanity checks
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[ ! "$tarfile" ] && error missing_argument;
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[ ! -s "$tarfile" ] && error wrong_file;
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if [ ! "$image_type" ]; then
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image_type=hd;
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elif [ "$image_type" != "1.20" -a "$image_type" != "1.44" \
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-a "$image_type" != "1.60" -a "$image_type" != "1.68" \
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-a "$image_type" != "2.88" -a "$image_type" != "1.74" \
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-a "$image_type" != "hd" -a "$image_type" != "1.60" ] ; then
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error wrong_type ;
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fi
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[ ! "$fs" ] && fs=ext2
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# Carlo Contavalli reported that I [TL] have forgotten to specify the
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# partition ID for sfdisk to correctly fill the partition table (ext2 is the
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# default on Linux, so this worked in this case...). This is fixed below.
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case "$fs" in
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ext2) mkfs_options="-m 0";
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part_id="83";; # This is the default
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# ufs) if [ $uname = Linux ];
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# then error unknown_fs;
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# fi;;
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minix) if [ $uname = GNU ];
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then error unknown_fs;
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else
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mkfs_options="-v"; # Minix version 2
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part_id="81";
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fi;;
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msdos) if [ $uname = GNU ];
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then error unknown_fs;
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else
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mkfs_options="-f 1 -F 12"; # the smallest...
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part_id="1";
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fi;;
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*) error unknown_fs;;
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esac
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# What type of tar file has been given ?
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suffix=`echo "$tarfile" | sed -n 's/^.*\.\([targbz2]\{2,3\}\)$/\1/p'`
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case "$suffix" in
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tar) decompress="cat";;
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gz) decompress="gunzip -c";;
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bz2) decompress="bunzip2 -c";;
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*) error unknown_format;;
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esac
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#---------------------- Initializations
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[ ! "$dir" ] && dir=`pwd`
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image=$dir/$image_type.image
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device_map=$dir/device.map
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# First, find the size of the tar file in block_size.
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file_size=`$decompress $tarfile | wc -c | tr -d ' '`
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file_size=$(($file_size / $block_size + 1))
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# Increase in order to be sure that with a fs there will be enough
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# room (trying 110%)
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file_size=$(($file_size + $file_size / 10))
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case "$image_type" in
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hd) heads=16;
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sectors=63;
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cyl_size=$((16 * 63));
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# Create the minimum number of cylinders. At the moment, we leave
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# some space by rounding everything up by adding 1 cylinder, plus
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# another one for MBR + reserved track.
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cylinders=$(($file_size / $cyl_size + 2));;
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1.20) [ $file_size -ge $bk_120 ] && error wont_fit;
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heads=2;
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sectors=15;
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cyl_size=$((2 * 15));
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cylinders=80;;
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1.44) [ $file_size -ge $bk_144 ] && error wont_fit;
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heads=2;
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sectors=18;
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cyl_size=$((2 * 18));
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cylinders=80;;
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1.60) [ $file_size -ge $bk_160 ] && error wont_fit;
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heads=2;
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sectors=20;
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cyl_size=$((2 * 20));
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cylinders=80;
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geo_option="-F";;
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1.68) [ $file_size -ge $bk_168 ] && error wont_fit;
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heads=2;
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sectors=21;
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cyl_size=$((2 * 21));
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cylinders=80;;
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1.74) [ $file_size -ge $bk_174 ] && error wont_fit;
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heads=2;
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|
sectors=21;
|
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|
cyl_size=$((2 * 21));
|
||||||
|
cylinders=83;;
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||||||
|
2.88) [ $file_size -ge $bk_288 ] && error wont_fit;
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heads=2;
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||||||
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sectors=36;
|
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|
cyl_size=$((2 * 36));
|
||||||
|
cylinders=80;;
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||||||
|
*) error bug;;
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|
esac
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type_option="-t $image_type"
|
||||||
|
|
||||||
|
# We start by creating a virtual disk which size is the number of
|
||||||
|
# cylinders of $cyl_size mandatory to put the files stocked in the $tarfile
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||||||
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# Create the empty virtual disk
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||||||
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dd if=/dev/zero of=$image bs=$block_size count=$(($cyl_size * $cylinders))
|
||||||
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||||||
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# We then format the virtual disk
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# NOTE: the El Torito specification wants only one partition. So we
|
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# create the first, and the remaining 3 entries are empty.
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||||||
|
if [ "$image_type" = "hd" ]; then
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sfdisk -C $cylinders -H $heads -S $sectors -D $image<<EOT
|
||||||
|
,,$part_id,*,0,1,1
|
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||||||
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||||||
|
EOT
|
||||||
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offset="-o $(($sectors * $block_size))"
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type_option=
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else
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offset="0"
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||||||
|
fi
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||||||
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# It's time now to create the filesystem on the first partition.
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mkbimage_mkfs
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|
|
||||||
|
# then untar the files
|
||||||
|
mkdir ${image}1 2>/dev/null
|
||||||
|
$decompress $tarfile | tar -C ${image}1 $debug -xf -
|
||||||
|
|
||||||
|
# copy the untarred files into the filesystem image
|
||||||
|
mkbimage_cp
|
||||||
|
|
||||||
|
#We verify that the stage2 exists and we search the name
|
||||||
|
stage2_os_name=`find ${image}1 -name stage2 -type f`
|
||||||
|
|
||||||
|
[ ! $stage2_os_name ] && { echo "I can't find stage2!"; exit 1;}
|
||||||
|
|
||||||
|
#------------------------- GRUB stuff
|
||||||
|
if [ "$image_type" = "hd" ]; then
|
||||||
|
device='(hd0)'
|
||||||
|
root='(hd0,0)'
|
||||||
|
else
|
||||||
|
device='(fd0)'
|
||||||
|
root='(fd0)'
|
||||||
|
fi
|
||||||
|
|
||||||
|
cat<<EOT >$device_map
|
||||||
|
$device ${image}
|
||||||
|
EOT
|
||||||
|
|
||||||
|
${GRUB_PATH}grub --device-map=$device_map --batch<<EOT
|
||||||
|
geometry $device $cylinders $heads $sectors
|
||||||
|
root $root
|
||||||
|
setup $device
|
||||||
|
geometry $geo_option -w $type_option $device $cylinders $heads $sectors
|
||||||
|
EOT
|
||||||
|
|
||||||
|
echo "-------------------WHAT'S NEXT?-------------------------------------"
|
||||||
|
echo
|
||||||
|
|
||||||
|
cat <<EOF
|
||||||
|
If you have created an image aimed to a floppy, then something like:
|
||||||
|
|
||||||
|
dd if=<type>.image of=/dev/fd0[u<size>] bs=512
|
||||||
|
|
||||||
|
will be more than enough... if you have formated the floppy correctly
|
||||||
|
using \`superformat' to be found in \`fdutils' package.
|
||||||
|
|
||||||
|
For El Torito floppy emulation :
|
||||||
|
|
||||||
|
mkisofs -b <image> -c boot.catalog -o raw.iso <dir>
|
||||||
|
|
||||||
|
And for El Torito Hard Disk emulation:
|
||||||
|
|
||||||
|
mkisofs -b <image> -hard-disk-boot -c boot.catalog -o raw.iso <dir>
|
||||||
|
|
||||||
|
Enjoy!
|
||||||
|
EOF
|
||||||
|
|
||||||
|
exit 0
|
||||||
Loading…
Add table
Add a link
Reference in a new issue