resize.sh

#!/bin/bash

fdisk_first() {
        p2_start=`fdisk -l /dev/mmcblk0 | grep mmcblk0p2 | awk '{print $2}'`
        echo "Found the start point of mmcblk0p2: $p2_start"
        fdisk /dev/mmcblk0 << __EOF__ >> /dev/null
d
2
n
p
2
$p2_start

p
w
__EOF__

        sync
        touch /root/.resize
        echo "Ok, Partition resized, please reboot now"
        echo "Once the reboot is completed please run this script again"
}

resize_fs() {
    echo "Activating the new size"
    resize2fs /dev/mmcblk0p2 >> /dev/null
    echo "Done!"
    echo "Enjoy your new space!"
    rm -rf /root/.resize
}


if [ -f /root/.resize ]; then
    resize_fs
else
    fdisk_first
fi