# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-ROOT_SIZE="1998"
-IMG_LABEL="DebXO"
IMG_NAME=""
ROOT_DIR=""
losetup -d "$1"
}
-# @img - fs image to mount
-# @type - fs type to mount
-# @offset - if the image is partitioned, the offset to mount at
-#
-# sets $MOUNT_POINT with the path of the newly created (and mounted) dir
-mk_mount()
-{
- img="$1"
- type="$2"
- offset="$3"
-
- if [ "$offset" != "" ]; then
- offset=",offset=$offset"
- fi
-
- MOUNT_POINT=$(mktemp)
- rm -f $MOUNT_POINT
- mkdir $MOUNT_POINT
-
- mount "$img" "$MOUNT_POINT" -o loop$offset -t "$type"
-}
-
-# @mntpt - directory to umount and delete
-rm_mount()
-{
- umount "$1"
- rmdir "$1"
-}
-
# @img - image name to create
-# @size - image size
create_bootable_img()
{
img="$1"
- size="$2"
+
+ # get the total size by summing all the partition sizes (listed in fstab comments)
+ partition_sizes=`grep '^LABEL=' configs/${CONFIG_TYPE}/fstab-ext3 | \
+ sed 's/.*#[[:space:]]\+\([0-9]\+\)$/\1/' | xargs echo | tr ' ' +`
+ size=$(($partition_sizes))
+
+ # there's some partition overhead; pad the image so that parted doesn't whine
+ overhead=`echo | awk "{ printf(\"%d\n\", 0.014 * $size); }"`
+ size=$((size + overhead))
# first, create a sparse image
minus_size=$(($size * 6 / 100))
# fill in the partition table
parted -s "$img" "mklabel msdos"
- parted -s "$img" "mkpart primary ext2 0 -1"
+ prior=0
+ grep '^LABEL=' configs/${CONFIG_TYPE}/fstab-ext3 | \
+ sed 's/.*#[[:space:]]\+\([0-9]\+\)$/\1/' | while read s; do
+ end=$((prior + s))
+ parted -s "$img" "mkpart primary ext2 $prior $end"
+ prior=$end
+ done
parted -s "$img" "set 1 boot on"
}
default 0
timeout 5
color cyan/blue white/blue
-
-title $IMG_LABEL
+EOF
+ label=`sed -ne 's/^LABEL=\(.\+\)[[:space:]]\+\/[[:space:]]\+.*/\1/p' configs/${CONFIG_TYPE}/fstab-ext3`
+ prefix=
+ grep -q ' ${mntpt}/boot ' /proc/mounts && prefix=/boot
+ for kern in ${mntpt}/boot/vmlinuz-*; do
+ v=$(basename $kern | sed 's/vmlinuz-//')
+ cat >>${mntpt}/boot/grub/menu.lst<<EOF
+
+title Debian GNU/Linux, kernel ${v}
root (hd0,0)
-kernel /vmlinuz root=LABEL=${IMG_LABEL} ro
+kernel ${prefix}/vmlinuz-${v} root=LABEL=${label} ro
+initrd ${prefix}/initrd.img-${v}
boot
EOF
+ done
# grub-install is pretty broken, so we do this manually
geom=`parted -s "$img" "unit chs" "print" | sed -ne 's/geometry: \([0-9]\+\),\([0-9]\+\),\([0-9]\+\)/:\1 \2 \3:/p' | cut -d: -f2`
}
# @img - image to create a filesystem on
-# @label - fs label
# @root_dir - root directory to populate the fs with
mk_ext3_fs()
{
img="$1"
- label="$2"
- root_dir="$3"
+ root_dir="$2"
+
+ # create root mount point
+ mount_point_root=$(mktemp)
+ rm -f $mount_point_root
+ mkdir $mount_point_root
+
+ i=1
+ sed -ne 's/^LABEL=//p' configs/${CONFIG_TYPE}/fstab-ext3 | \
+ while read name mntpt fstype extra; do
+ partition_start=$(parted -m -s "$img" "unit B" "print" | grep "^$i" | cut -d: -f2 | cut -dB -f1)
+ partition_size=$(parted -m -s "$img" "unit B" "print" | grep "^$i" | cut -d: -f4 | cut -dB -f1)
+ bs=1024
+
+ # create the filesystems/swap
+ attach_loop "$img" "$partition_start"
+ if [ "$fstype" = "ext3" ]; then
+ mke2fs -q -b $bs -L "$name" -m0 -j "$LOOP_DEV" $((partition_size / bs))
+ tune2fs -c0 -i0 "$LOOP_DEV" # XXX: this is from OLPC days; do we still want this?
+ elif [ "$fstype" = "ext2" ]; then
+ mke2fs -q -b $bs -L "$name" -m0 "$LOOP_DEV" $((partition_size / bs))
+ tune2fs -c0 -i0 "$LOOP_DEV"
+ elif [ "$fstype" = "swap" ]; then
+ mkswap -L "$name" "$LOOP_DEV" $((partition_size / bs))
+ fi
+ detach_loop "$LOOP_DEV"
- # parted 1.8 added --machine for easier parsing; however,
- # debian still has 1.7 in unstable.
- partition_start=$(parted -s "$img" "unit B" "print" | sed -ne 's/^ 1[[:space:]]\+//p' | cut -dB -f1)
+ # mount the root partition if it's found
+ if [ "$mntpt" = "/" ]; then
+ mount "$img" "${mount_point_root}" -o loop,offset=$partition_start -t $fstype
+ fi
+
+ i=$((i + 1))
+ done
- # create the filesystem
- attach_loop "$img" "$partition_start"
- mke2fs -q -L "$label" -m0 -j "$LOOP_DEV"
- tune2fs -c0 -i0 "$LOOP_DEV"
- detach_loop "$LOOP_DEV"
+ # mount the rest of the partitions (working around /boot coming before /)
+ sed -ne 's/^LABEL=//p' configs/${CONFIG_TYPE}/fstab-ext3 | \
+ while read name mntpt fstype extra; do
+ # / is already mounted
+ if [ "$mntpt" = "/" ]; then
+ continue
+ fi
+
+ # if $mntpt doesn't start with '/', don't mount it
+ if [ "${mntpt##/}" = "$mntpt" ]; then
+ continue
+ fi
+
+ # parted 1.8 added --machine for easier parsing; however,
+ # debian still has 1.7 in unstable.
+ partition_start=$(parted -s "$img" "unit B" "print" | sed -ne "s/^ $i[[:space:]]\+//p" | cut -dB -f1)
+
+ [ -d "${mount_point_root}${mntpt}" ] || mkdir -p "${mount_point_root}${mntpt}"
+ mount "$img" "${mount_point_root}${mntpt}" -o loop,offset=$partition_start -t $fstype
+ done
+
# populate the filesystem
- mk_mount "$img" "ext3" "$partition_start"
- cp -ra "$root_dir"/* "$MOUNT_POINT" || true
- grub_install "$img" "$MOUNT_POINT"
- rm_mount "$MOUNT_POINT"
+ cp -ra "$root_dir"/* "$mount_point_root" || true
+ grub_install "$img" "$mount_point_root"
+
+ # umount the filesystem
+ sed -ne 's/^LABEL=//p' configs/${CONFIG_TYPE}/fstab-ext3 | \
+ while read name mntpt fstype extra; do
+
+ # don't unmount / yet
+ if [ "$mntpt" = "/" ]; then
+ continue
+ fi
+
+ # if $mntpt doesn't start with '/', it's not mounted
+ if [ "${mntpt##/}" = "$mntpt" ]; then
+ continue
+ fi
+
+ umount "${mount_point_root}${mntpt}"
+ done
+
+ umount "${mount_point_root}"
+ rmdir "${mount_point_root}"
}
usage()
echo "Usage: $0 [<options>] <root directory> <img>" 1>&2
echo "" 1>&2
echo "Options:" 1>&2
- echo " -l <label> Image label" 1>&2
- echo " -s <size> Root filesystem size (in MB)" 1>&2
echo " --config-type <config> directory name in configs/ to use" 1>&2
echo "" 1>&2
exit 1
}
shift
;;
- -l)
- IMG_LABEL=$2
- shift
- ;;
- -s)
- ROOT_SIZE=$2
- shift
- ;;
*)
ROOT_DIR="$1"
shift
cp ./configs/${CONFIG_TYPE}/olpc.fth-ext3 ${ROOT_DIR}/boot/olpc.fth
fi
-create_bootable_img ${IMG_NAME} ${ROOT_SIZE}
-mk_ext3_fs ${IMG_NAME} ${IMG_LABEL} ${ROOT_DIR}
+create_bootable_img ${IMG_NAME}
+mk_ext3_fs ${IMG_NAME} ${ROOT_DIR}
#mount ${IMG_NAME}.ext3 $MOUNT_POINT -o loop,offset=$OS_PART1_BEGIN -t ext3
#cp -r "$ROOT_DIR"/* $MOUNT_POINT
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