I have updated my iso2flash.sh script so that now it can convert both FreeBSD _and_ linux ISO images to flash images. For the latter, it uses a FAT filesystem, and puts a linux loader with syslinux, for which you can find a port at
http://info.iet.unipi.it/~luigi/FreeBSD/index.html#syslinux-port Below is the updated code for iso2flash.sh ------------------- cut here -------------------------------- #!/bin/sh # $Id: iso2flash.sh 897 2008-11-25 22:41:00Z luigi $ # convert an ISO image to flash image # The type of filesystem depends on the content, but can be forced # manually. # # based on picobsd tricks. # Requires makefs, bsdlabel, sed and dd # The linux image uses mtools and syslinux, see # http://info.iet.unipi.it/~luigi/FreeBSD/#syslinux-port # see http://www.allbootdisks.com/download/iso.html MAKEFS=makefs MKLABEL=bsdlabel BSDTAR=tar # Create a linux disk starting from an ISO. Use a FAT media # and syslinux to format it. Add some intelligence to figure # out where the kernel is and what options it needs. make_linux_image() { # src_tree dest_image local tree=$1 local img=$2 local size=$(( $3 + 1000 )) # size in kb local x=$(( 1 + $size / 128 )) # 128k units, good for dd # if you have an old newfs_msdos... local OPTS=" -h 16 -u 64 -S 512 -s $(( 2 * ${size} )) -o 0" [ -f ${img} ] && { chmod u+w ${img}; rm ${img} ; } dd if=/dev/zero bs=128k count=$x of=${img} # create blank file newfs_msdos ${OPTS} ${img} # format msdos syslinux ${img} # add linux bootcode # Try to identify where the kernel is local boot=`find $tree -name boot` if [ x"${boot}" != x -a -d "${boot}" ] ; then echo "moving boot code" chmod u+w ${boot} ${boot}/* mv ${boot}/* $tree [ -f ${tree}/syslinux.cfg ] || mv ${tree}/isolinux.cfg ${tree}/syslinux.cfg fi if [ -d ${tree}/isolinux ] ; then # systemrescuecd local sys=${tree}/syslinux echo moving files... [ -d ${sys} ] || mkdir -p ${sys} chmod -R u+w ${tree}/isolinux mv ${tree}/isolinux/* ${sys} [ -f ${sys}/syslinux.cfg ] || mv ${sys}/isolinux.cfg ${sys}/syslinux.cfg fi if [ -f ${tree}/syslinux.cfg ] ; then elif [ -f ${tree}/syslinux/syslinux.cfg ] ; then elif [ -f ${tree}/linux ] ; then elif [ -f ${tree}/CE_BZ ] ; then # splashtop / expressgate echo "default ce_bz" > ${tree}/syslinux.cfg else boot=`cd ${tree}; find . -name boot.img` if [ x"${boot}" != x -a -f "${tree}/${boot}" ] ; then cp -p /usr/local/share/syslinux/memdisk $tree ( echo "default memdisk"; echo "append initrd=${boot}" ) > $tree/syslinux.cfg fi fi mcopy -i ${img} -s ${tree}/* ::/ # copy the tree mdir -/ -i ${img} :: # show the results } # to add freedos code: #perl sys-freedos.pl --disk=${img} --heads=16 --sectors=64 --offset=0 # --lb #dd if=mbrfat.bin bs=90 iseek=1 oseek=1 of=${img} conv=notrunc # Create a FreeBSD image. make_freebsd_image() { # tree imagefile size local tree=$1 local imagefile=$2 local boot1=${tree}/boot/boot1 local boot2=${tree}/boot/boot2 echo "convert tree $tree image $img" ${MAKEFS} -t ffs -o bsize=4096 -o fsize=512 \ -f 50 ${imagefile} ${tree} ${MKLABEL} -w -f ${imagefile} auto # write a label # copy partition c: into a: with some sed magic ${MKLABEL} -f ${imagefile} | sed -e '/ c:/{p;s/c:/a:/;}' | \ ${MKLABEL} -R -f ${imagefile} /dev/stdin # dump the primary and secondary boot (primary is 512 bytes) dd if=${boot1} of=${imagefile} conv=notrunc 2>/dev/null # XXX secondary starts after the 0x114 = dec 276 bytes of the label # so we skip 276 from the source, and 276+512=788 from dst # the old style blocks used 512 and 1024 respectively dd if=${boot2} iseek=1 ibs=276 2> /dev/null | \ dd of=${imagefile} oseek=1 obs=788 conv=notrunc 2>/dev/null } extract_image() { # extract image to a tree [ -f $1 ] || return local tmp="${tree}.tree" echo "Extract files from ${tree} into $tmp " (chmod -R +w $tmp; rm -rf $tmp ) mkdir -p $tmp ls -la $tmp (cd $tmp && ${BSDTAR} xf $tree ) ls -la $tmp tree=$tmp } guess_type() { echo guess type imgtype="error" # default [ -f $tree/boot/loader -a -f $tree/boot/loader.rc ] && { imgtype="bsd"; return ; } local a=`find $tree -name isolinux` [ x"$a" != x -a -d $a ] && { imgtype="linux"; return ; } } # option processing while [ x"$*" != x ] ; do case x"$1" in x-t ) # type shift imgtype=$1 ;; *) break ;; esac shift done tree=`realpath $1` image=`realpath $2` echo "type <$imgtype> tree <$tree> image <$image>" extract_image $tree set `du -sk $tree` size=$1 echo "image size is $size kb" while true ; do case x"$imgtype" in *[Bb][Ss][Dd] ) make_freebsd_image $tree $image $size ;; *[Ll][Ii][Nn][Uu][Xx] ) make_linux_image $tree $image $size ;; xerror) echo "Image type not found, giving up" ;; * ) guess_type continue ;; esac break done [ -d "$tmp" ] && (chmod -R u+w $tmp && rm -rf $tmp) #---------------------- end of file ------------------------------- _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
