]> spindle.queued.net Git - xodist/blobdiff - mkjffs2.sh
debxo-sugar: update packages for squeeze
[xodist] / mkjffs2.sh
index f3c521dd0330e5e023b0eb3c80c4ecfbdc33d6f4..216c6bdf79a1c1270c183e728fa75963df08e3f7 100755 (executable)
@@ -1,6 +1,6 @@
 #!/bin/bash -e
 #
-# Copyright © 2008  Andres Salomon <dilinger@queued.net>
+# Copyright © 2008-2009  Andres Salomon <dilinger@collabora.co.uk>
 #
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
-. functions.sh
+. ./functions.sh
+
+CONFIG_TYPE=generic
 
 usage()
 {
        echo "" 1>&2
-       echo "Usage: $0 <root directory> <img>" 1>&2
+       echo "Usage: $0 [<options>] <root directory> <img>" 1>&2
+       echo "" 1>&2
+       echo "Options:" 1>&2
+       echo "  --config-type <config>    directory name in configs/ to use" 1>&2
+       echo "  --help                    display this help screen" 1>&2
        echo "" 1>&2
        exit 1
 }
 
-if [ "$#" != "2" ]; then
-       usage
-fi
+while test $# != 0
+do
+       case $1 in
+       --config-type)
+               CONFIG_TYPE=$2
+               [ -d ./configs/${CONFIG_TYPE} ] || {
+                       echo "Error: can't find directory './configs/${CONFIG_TYPE}/'!" 1>&2
+                       exit 2
+               }
+               shift
+               ;;
+       --help|-h)
+               usage
+               ;;
+       *)
+               if [ "$#" != "2" ]; then
+                       echo "Unknown option $1" 1>&2
+                       usage
+               else
+                       ROOT_DIR=$1
+                       IMG_NAME=$2
+                       shift
+               fi
+               ;;
+       esac
+       shift
+done
 
-ROOT_DIR=$1
-IMG_NAME=$2
-
-if [ "${IMG_NAME}" == "${IMG_NAME/.img/.crc}" ]; then
-    CRC_NAME=${IMG_NAME}.crc
+if [ "${IMG_NAME}" == "${IMG_NAME/.img/.dat}" ]; then
+       DAT_NAME=${IMG_NAME}.dat
 else
-    CRC_NAME=${IMG_NAME/.img/.crc}
+       DAT_NAME=${IMG_NAME/.img/.dat}
 fi
 
 if [ ! -d "${ROOT_DIR}" ]; then
@@ -46,10 +73,117 @@ if [ ! -d "${ROOT_DIR}" ]; then
 fi
 
 check_for_cmds mkfs.jffs2 sumtool || exit 1
-create_fstab ${ROOT_DIR} jffs2
-create_ofwboot ${ROOT_DIR} jffs2
 
-mkfs.jffs2 -n -e128KiB -r ${ROOT_DIR} -o ${IMG_NAME}.pre
-sumtool -n -p -e 128KiB -i ${IMG_NAME}.pre -o ${IMG_NAME}
-rm -f ${IMG_NAME}.pre
-./crcimg.pl < ${IMG_NAME} > ${CRC_NAME}
+# create image's /etc/fstab
+if [ ! -f ./configs/${CONFIG_TYPE}/fstab-jffs2 ]; then
+       echo "*** Unable to find fstab-jffs2!" 1>&2
+       exit 1
+fi
+sed 's/[[:space:]]#.*//' ./configs/${CONFIG_TYPE}/fstab-jffs2 > ${ROOT_DIR}/etc/fstab
+
+# TODO: this needs to go into an OFW package; here it's a hack
+# create image's /boot/olpc.fth
+if [ -f ./configs/${CONFIG_TYPE}/olpc.fth-jffs2 ]; then
+       cp ./configs/${CONFIG_TYPE}/olpc.fth-jffs2 ${ROOT_DIR}/boot/olpc.fth
+fi
+
+create_jffs2()
+{
+       root_dir="$1"
+       out="$2"
+
+       mkfs.jffs2 -n -e128KiB -r ${root_dir} -o ${out}.pre
+       sumtool -n -p -e 128KiB -i ${out}.pre -o ${out}
+       rm -f ${out}.pre
+}
+
+partition_map()
+{
+       cat >${IMG_NAME}<<EOF
+data:  ${DAT_NAME}
+erase-all
+EOF
+
+       # partition size map
+       printf "partitions:" >> ${IMG_NAME}
+       sed -ne 's/^mtd://p' configs/${CONFIG_TYPE}/fstab-jffs2 | \
+                       while read name mntpt fstype extra; do
+               size=$(echo $extra | sed -ne 's/.*[[:space:]]\+#[[:space:]]\+//p')
+               if [ "${size}" = "" ]; then
+                       size="-1"
+               else
+                       # size in fstab is in MB; convert to 128KiB chunks (in hex)
+                       # MB * (1024/128)
+                       size=$((size * 8))
+                       size=`printf "%x\n" $size`
+               fi
+               printf "  $name $size" >> ${IMG_NAME}
+       done
+       printf "\n" >> ${IMG_NAME}
+
+       # individual partitions
+       sed -ne 's/^mtd://p' configs/${CONFIG_TYPE}/fstab-jffs2 | \
+                       while read name mntpt fstype extra; do
+               cat >>${IMG_NAME}<<EOF
+set-partition: ${name}
+mark-pending: 0
+EOF
+               # sha256 summing for data
+               eblocks=$((`stat --printf "%s\n" _${name}.img` / (128*1024)))
+               for b in $(seq 0 $(($eblocks - 1))); do
+                       sha=$(dd status=noxfer bs=128KiB skip=$b count=1 if=_${name}.img 2>/dev/null \
+                                       | sha256sum | cut -d\  -f1)
+                       echo "eblock: `printf '%x' $b` sha256 $sha" >> ${IMG_NAME}
+               done
+               cat >>${IMG_NAME}<<EOF
+cleanmarkers
+mark-complete: 0
+EOF
+       done
+}
+
+# move separate partitions out of the way
+sed -ne 's/^mtd://p' configs/${CONFIG_TYPE}/fstab-jffs2 | \
+               while read name mntpt fstype extra; do
+       if [ "$mntpt" = "/" ]; then
+               continue
+       fi
+
+       mv ${ROOT_DIR}/${mntpt} "_${name}"
+       mkdir ${ROOT_DIR}/${mntpt}
+done
+
+# create partitions
+sed -ne 's/^mtd://p' configs/${CONFIG_TYPE}/fstab-jffs2 | \
+               while read name mntpt fstype extra; do
+       if [ "$mntpt" = "/" ]; then
+               create_jffs2 ${ROOT_DIR} "_${name}.img"
+
+       else
+               create_jffs2 "_${name}" "_${name}.img"
+       fi
+done
+
+# move separate partitions back into the chroot
+sed -ne 's/^mtd://p' configs/${CONFIG_TYPE}/fstab-jffs2 | \
+               while read name mntpt fstype extra; do
+       if [ "$mntpt" = "/" ]; then
+               continue
+       fi
+
+       rmdir ${ROOT_DIR}/${mntpt}
+       mv "_${name}" ${ROOT_DIR}/${mntpt}
+done
+
+# partition map is used by OFW for partition layout and sha256 checksums
+partition_map
+
+# concat partitions, finish up
+rm -f ${DAT_NAME}
+sed -ne 's/^mtd://p' configs/${CONFIG_TYPE}/fstab-jffs2 | \
+               while read name mntpt fstype extra; do
+       cat "_${name}.img" >> ${DAT_NAME}
+       rm -f "_${name}.img"
+done
+
+exit 0