Making bootable USB keys
Samuel Martín Moro
faust64 at gmail.com
Thu Sep 3 19:25:09 UTC 2009
I've already been told.
But didn't tried it yet, my servers haven't X.
I'll take a look on a test computer.
But in the end, everything'll have to be done in the shellscript.
Samuel Martín Moro
CamTrace
{EPITECH.} tek4
On Thu, Sep 3, 2009 at 6:19 PM, Dimitri Yioulos <dyioulos at firstbhph.com>wrote:
> On Thursday 03 September 2009 11:35:34 am Samuel
> Martín Moro wrote:
> > Hello
> >
> > I'm having some troubles, trying to create
> > bootable USB keys. I found (freebsd-hackers ML
> > archives) a script, supposed to create the
> > bootable image from my iso file.
> > But, it still don't boot... (I may do it wrong)
> >
> > In details:
> > -We distribute a FreeBSD (4.7, 5.4, 6.2 and
> > 7.2) "custom" server. -We burn our install CD
> > (and, in a few, our USB sticks) on a Ferdora 9
> > (sorry...)
> > -USB sticks must contain a FAT32 partition
> > (we'ld like to provide doc for windows users)
> >
> > Well, my english isn't so great... so I'll post
> > my code (more understandable)
> >
> > --maker.sh--
> > #!/bin/sh
> > ISO_DIR=/r00t
> > ISO_PFIX=r00t
> > VERSION=5.9.3.0
> > ISO_FILE=$ISO_DIR/$ISO_PFIX-$VERSION.img
> > DEVICE=
> > TMPDOC=/mnt/tmpdoc
> > DOCDIR=/root/samuel/docdir
> > ERR=
> > SFX=
> > MBR=/root/samuel/mbr
> > BT1=/root/samuel/boot1
> > BT2=/root/samuel/boot2
> >
> > if [ -e "$1" ]; then
> > DEVICE=$1
> > elif [ "$1" -a -e "/dev/$1" ]; then
> > DEVICE=/dev/$1
> > elif [ "$1" ]; then
> > echo "$0: incorrect device specified" >&2
> > exit
> > else
> > echo "$0: must specify device" >&2
> > exit
> > fi
> > for i in `mount | cut -d ' ' -f 1`
> > do
> > if [ "`echo $i | grep $DEVICE`" ]; then
> > echo "$0: $i already mounted" >&2
> > echo " umount it manually or
> > choose an other drive" >&2 exit
> > fi
> > done
> >
> > if [ -e "$TMPDOC" -a -d "$TMPDOC" ]; then
> > echo "$0: removing $TMPDOC directory" >&2
> > rm -rf $TMPDOC
> > elif [ -e "$TMPDOC" ]; then
> > mv $TMPDOC $TMPDOC.old
> > echo "$0: moved $TMPDOC to $TMPDOC.old" >&2
> > fi
> > mkdir $TMPDOC
> >
> > if [ "$2" ]; then
> > echo $2 | grep "\.img$" >/dev/null ||
> > SFX=".img" fi
> >
> > if [ -e "$2$SFX" ]; then
> > ISO_FILE=$2$SFX
> > elif [ "$2" -a -e "$ISO_DIR/$2$SFX" ]; then
> > ISO_FILE=$ISO_DIR/$2
> > elif [ "$2" -a -e "$ISO_DIR/$ISO_PFIX-$2$SFX"
> > ]; then ISO_FILE="$ISO_DIR/$ISO_PFX-$2$SFX"
> > else
> > echo "$0: will use default file
> > \`$ISO_FILE'" >&2 echo " as system
> > image source" >&2 fi
> > if [ -e "$ISO_FILE" ]; then
> > MSize=`ls -l $ISO_FILE | awk '{print $5}'`
> > else
> > echo "$0: $ISO_FILE doesn't exist!" >&2
> > rm -rf $TMPDOC
> > exit
> > fi
> > if [ -z "$MSize" -o "$MSize" -lt 1 ]; then
> > echo "$0: bad image size (size=$MSize)" >&2
> > rm -rf $TMPDOC
> > exit
> > fi
> >
> > while :
> > do
> > echo " [ Working on $DEVICE ]"
> >
> > echo -n " determining device geometry "
> > infos=`fdisk -l $DEVICE 2>/dev/null | grep
> > "[0-9]* heads"` ident=`fdisk -l $DEVICE
> > 2>/dev/null | awk '/Disk identifier/{print
> > $3}'` csz=`fdisk -l $DEVICE 2>/dev/null | awk
> > '/Units = cylinders /{print $7}'`
> > eval `echo $infos | awk '{print "hpc=" $1 "
> > sec=" $3 " cyl=" $5}'` if [ -z "$hpc" -o -z
> > "$sec" -o -z "$cyl" -o -z "$csz" ]; then echo "
> > [ FAIL ]"
> > echo "$0: can't get infos for device
> > $DEVICE" >&2 rm -rf $TMPDOC
> > exit
> > fi
> > echo " [ OK ]"
> >
> > echo -n " initializing partition table "
> > # dd if=/dev/zero of=$DEVICE bs=$csz count=1
> > >/dev/null 2>&1 dd if=$BT1 of=$DEVICE
> > >/dev/null 2>&1 round=128
> > tocyl=`expr $hpc '*' $sec '*' $csz`
> > ret=`expr $MSize % $tocyl`
> > MSize=`expr $MSize / $tocyl`
> > test "$ret" -eq "0" || MSize=`expr $MSize +
> > 1` s2len=$MSize
> > s2off=`expr $cyl - $s2len - 1`
> > s1len=`expr $s2off - 1`
> > s1off=1
> > sfdisk -DLqf $DEVICE >/dev/null 2>&1 <<EOF
> > $s1off $s1len b
> > $s2off $s2len a5 *
> > EOF
> > echo " [ OK ]"
> >
> > echo -n " formatting FAT32 partition "
> > dd if=/dev/zero of=${DEVICE}1 bs=$csz
> > count=1 >/dev/null 2>&1 mkdosfs -i 42424242 -n
> > "Docs" -F 32 ${DEVICE}1 >/dev/null 2>&1 mount
> > -t vfat ${DEVICE}1 $TMPDOC || ERR=1 if [ "$ERR"
> > ]; then
> > echo " [ FAIL ]"
> > echo "$0: unable to mount ${DEVICE}1 on
> > $TMPDOC" rm -rf $TMPDOC
> > exit
> > fi
> > echo " [ OK ]"
> >
> > echo -n " copying documentation files "
> > cp -rp $DOCDIR/* $TMPDOC/ >/dev/null 2>&1
> > || ERR=2 if [ "$ERR" ]; then
> > echo " [ FAIL ]"
> > echo "$0: unable to copy doc files"
> > ERR=
> > fi
> > umount ${DEVICE}1
> > echo " [ OK ]"
> >
> > echo -n " copying system "
> > dd if=$ISO_FILE of=${DEVICE}2 status=noxfer
> > >/dev/null 2>&1 echo " [ OK ]"
> >
> > mbrsig $DEVICE 2>&1 | awk '{print "
> > marking device with serial " $3 }'
> > echo " [ Device ready! ]"
> > echo ""
> > echo -n "<?> Create new USB key ? [Y/N] :
> > " && read i test "$i" = "Y" -o "$i" = "y" -o
> > "$i" = "O" -o "$i" = "o" || i= test -z "$i" &&
> > echo " [ leaving ]" && break echo " Please,
> > remove current USB key, insert new one and
> > press enter" read i
> > done
> > rmdir $TMPDOC
> > --EOF--
> >
> > So, this is a "USB stick generator" I'm working
> > on. It seems to work. (I've not tested
> > everything, but the basis is OK) The stick is
> > correctly parted.
> > The documentation is copied.
> > My only problem is that it still don't wan't to
> > boot...
> >
> > At the beginning, I was trying to paste my ISO
> > file directly in ${DEVICE}2 Then, I found the
> > following shell script, which is supposed to
> > make my bootable image from my ISO file
> > I changed 2/3 things, but some of you may
> > recognize it anyway:
> >
> > --ISOtoIMG.sh--
> > #!/bin/sh
> > MAKEFS=makefs
> > MKLABEL=bsdlabel
> > BSDTAR=tar
> > DD="dd status=noxfer"
> >
> > make_freebsd_image()
> > {
> > local tree=$1
> > local imagefile=$2
> > local boot1=${tree}/boot/boot1
> > local boot2=${tree}/boot/boot2
> >
> > echo "convert tree $tree image $imagefile"
> > ${MAKEFS} -t ffs -o bsize=4096 -o fsize=512
> > -f 50 ${imagefile} ${tree}
> >
> > >/dev/null 2>&1
> >
> > ${MKLABEL} -w -f ${imagefile} auto >/dev/null
> > 2>&1 ${MKLABEL} -f ${imagefile} 2>/dev/null |
> > sed -e '/ c:/{p;s/c:/a:/;}' | \ ${MKLABEL} -R
> > -f ${imagefile} /dev/stdin >/dev/null 2>&1
> > ${DD} if=${boot1} of=${imagefile} conv=notrunc
> > >/dev/null 2>&1 ${DD} if=${boot2} iseek=1
> > ibs=276 2>/dev/null | \ ${DD} of=${imagefile}
> > oseek=1 obs=788 conv=notrunc >/dev/null 2>&1 }
> >
> > extract_image()
> > {
> > [ -f $1 ] || return
> > local tmp="${tree}.tree"
> > [ -e ${tmp} ] && rm -rf ${tmp}
> > mkdir -p $tmp
> > echo "extracting $tree in $tmp"
> > (cd $tmp && ${BSDTAR} xf $tree)
> > tree=$tmp
> > }
> >
> > if [ -z "$1" ]; then
> > echo "$0: usage" >&2
> > echo " $0 {ISO_input} | {system_root
> > IMG_output}" >&2 exit
> > fi
> > tree=`realpath $1`
> > [ "$2" ] && image=`realpath $2` || image=`echo
> > $tree | sed "s/.iso/.img/"` extract_image $tree
> > make_freebsd_image $tree $image
> > [ -d "$tmp" ] && (chmod -R +w $tmp && rm -rf
> > $tmp) --EOF--
> >
> > This seems to work, too...
> > I'm just surprised:
> > root at granit:~/samuel# l -h /r00t/r00t-5.9.3.0*
> > -rw-r--r-- 1 root root 566M 2009-09-03 15:29
> > /r00t/r00t-5.9.3.0.img -rw-r--r-- 1 root root
> > 526M 2009-08-08 06:58 /r00t/r00t-5.9.3.0.iso
> > new file is 40M heavier than our iso image...
> >
> > Also, in the first script, I tried to do the
> > first dd (initializing ${DEVICE}) with:
> > - if=$MBR
> > - if=$BT1
> > - if=$BT2
> > - if=/dev/zero
> > none of that worked...
> >
> > So.
> > Does someone understand what am I doing wrong?!
> >
> >
> > Thanks for you help!
> >
> > Samuel Martín Moro
> > CamTrace
> > {EPITECH.} tek4
> > _______________________________________________
> > freebsd-questions at freebsd.org mailing list
> > http://lists.freebsd.org/mailman/listinfo/freeb
> >sd-questions To unsubscribe, send any mail to
> > "freebsd-questions-unsubscribe at freebsd.org"
>
>
> Might want to try UNetbootin.
>
> Dimitri
>
> --
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