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raspberrymatic-addon-rmupdate/addon/firmware_update_script

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#/bin/sh
DISK="/dev/mmcblk0"
BOOT_SIZE=268435456
ROOT_SIZE=1073741824
REPARTITION=0
RELABEL=0
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function start_sshd() {
echo "Starting ssh daemon.<br />" 1>&2
mount -o remount,rw /bootfs
echo -n "rmupdate" > /bootfs/recoveryfs-sshpwd
mount -o remount,ro /bootfs
/etc/init.d/S50sshd start
}
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function repartition() {
echo "Checking for rootfs2 on $DISK.<br />" 1>&2
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if blkid ${DISK}p3 | grep 'LABEL="rootfs2"' 1>/dev/null 2>/dev/null; then
echo "Rootfs2 found.<br />" 1>&2
cp /bootfs/VERSION /tmp/bootfs.VERSION
umount /bootfs
umount /rootfs
echo "Current partition table:<br />" 1>&2
parted $DISK unit B print | sed ':a;N;$!ba;s#\n#<br />#g' 1>&2
boot_start=$(parted $DISK unit B print | grep '^ 1' | sed -n 's/ [1-4] *\([0-9]*\)B *\([0-9]*\)B.*/\1/p')
user_start=$(parted $DISK unit B print | grep '^ 4' | sed -n 's/ [1-4] *\([0-9]*\)B *\([0-9]*\)B.*/\1/p')
user_end=$(parted $DISK unit B print | grep '^ 4' | sed -n 's/ [1-4] *\([0-9]*\)B *\([0-9]*\)B.*/\2/p')
boot_end=$(($boot_start+$BOOT_SIZE-1))
root_start=$(($boot_end+1))
root_end=$(($root_start+$ROOT_SIZE-1))
boot_start_s=$((${boot_start}/512))
boot_size_s=$(((${boot_end}-${boot_start}+1)/512))
root_start_s=$((${root_start}/512))
root_size_s=$(((${root_end}-${root_start}+1)/512))
user_start_s=$((${user_start}/512))
user_size_s=$(((${user_end}-${user_start}+1)/512))
echo "Calculated new partition layout:<br />" 1>&2
echo " bootfs: $boot_start ($boot_start_s) - $boot_end - $boot_size_s<br />" 1>&2
echo " rootfs: $root_start ($root_start_s) - $root_end - $root_size_s<br />" 1>&2
echo " userfs: $user_start ($user_start_s) - $user_end - $user_size_s<br />" 1>&2
echo "Writing new partition table to disk.<br />" 1>&2
# parted will refuse to write partition table because partitions are mounted
#parted --script $DISK \
# mklabel msdos \
# mkpart primary fat32 ${boot_start}B ${boot_end}B \
# set 1 boot on \
# mkpart primary ext4 ${root_start}B ${root_end}B \
# mkpart primary ext4 ${user_start}B ${user_end}B
{
echo "$boot_start_s,$boot_size_s,0x0C,*"
echo "$root_start_s,$root_size_s,0x83"
echo "$user_start_s,$user_size_s,0x83"
,0
} | sfdisk --no-reread --force --wipe=always --label=dos $DISK 2>&1 | sed ':a;N;$!ba;s#\n#<br />#g' 1>&2
# Use dd to write label id
printf "\xef\xbe\xed\xde" | dd of=$DISK bs=1 count=4 seek=440
#echo "New partition table:<br />" 1>&2
#parted $DISK unit B print | sed ':a;N;$!ba;s#\n#<br />#g' 1>&2
partprobe
# RaspberryMatic will check for label rootfs and VERSION file
mkfs.ext4 -L rootfs ${DISK}p2
mount ${DISK}p2 /rootfs
cp /tmp/bootfs.VERSION /rootfs/VERSION
umount /rootfs
fi
}
function relabel() {
user=$(readlink -f /dev/disk/by-label/userfs)
user0=$(readlink -f /dev/disk/by-label/0userfs)
tune2fs -L 0userfs $user
tune2fs -L userfs $user0
}
echo "Deleting update_script.<br />" 1>&2
mount -o remount,rw /userfs
rm -f "$0"
mount -o remount,ro /userfs
start_sshd
[ "$RELABEL" = "1" ] && relabel
[ "$REPARTITION" = "1" ] && repartition
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echo "Running fwinstall.sh (again).<br />" 1>&2
rm -f /tmp/.runningFirmwareUpdate
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fwinstall.sh