*[http://man7.org/linux/man-pages/man8/umount.8.html umount]<br>

*[http://man7.org/linux/man-pages/man1/df.1.html df]<br>

*[http://tldp.org/HOWTO/Partition/fdisk_partitioning.html fdisk]<br>

*[http://www.cyberciti.biz/faq/howto-format-create-linux-filesystem/ mkfs]