frodovdr/raspberrymatic-addon-rmupdate
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Code Issues Releases Wiki Activity

update_script to repartition

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Jan Schneider 2018-05-13 00:26:38 +02:00
parent ecc86a9be0
commit fb043b7475
1 changed files with 76 additions and 23 deletions
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99
addon/update_script_repartition
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@ -1,35 +1,88 @@
#/bin/sh
fwinstall.sh
exit 0
DISK="/dev/mmcblk0"
BOOT_SIZE=268435456
ROOT_SIZE=1073741824
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')
echo "Deleting update_script.<br />" 1>&2
mount -o remount,rw /userfs
rm -f "$0"
mount -o remount,ro /userfs
boot_end=$(($boot_start+$BOOT_SIZE-1))
root_start=$(($boot_end+1))
root_end=$(($root_start+$ROOT_SIZE-1))
echo "Checking for rootfs2 on $DISK.<br />" 1>&2
#echo $boot_start - $boot_end
#echo $root_start - $root_end
#echo $user_start - $user_end
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
}
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
partprobe
rm "$0"
if blkid ${DISK}p3 | grep 'LABEL="rootfs2"' 1>/dev/null 2>/dev/null; then
echo "Rootfs2 found.<br />" 1>&2
start_sshd
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 "\xde\xed\xbe\xef" | 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
echo "Running fwinstall.sh (again).<br />" 1>&2
rm -f /tmp/.runningFirmwareUpdate
fwinstall.sh