sunxi-debian/olinux/script/firstrun

#!/bin/bash

### BEGIN INIT INFO
# Provides:          firstrun
# Required-Start:    $all
# Required-Stop:
# Should-Start:
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Script to run when first starting
# Description:       Something needs to be done when  is
#                    starting at first time.
#                    regenerate ssh host key
#                    run depmod 
### END INIT INFO

# script from https://github.com/igorpecovnik/lib
# modified by https://github.com/bleuchtang/sunxi-debian

N=/etc/init.d/firstrun

set -e

case "$1" in
  start)
            reboot=false
                echo ""
                rm -f /etc/ssh/ssh_host*
                dpkg-reconfigure openssh-server 
                set +e
                echo "Expanding rootfs..."
		device="/dev/mmcblk0"
		((echo d; echo n; echo p; echo 1; echo ; echo; echo w;) | fdisk $device)>/dev/null
                if [ $? -eq 0 ] ;then
                        echo "Expanding rootfs success, rebooting automatically." 
			/sbin/resize2fs /dev/mmcblk0p1 2>/dev/null
                        reboot=true
                else
                        echo "Expanding rootfs has failed, see log files." 
                fi
		depmod -a
                /sbin/insserv -r firstrun
		if $reboot;then
			/sbin/reboot
		fi
        ;;
  *)
        echo "Usage: $N {start}" >&2
        exit 1
        ;;
esac

exit 0