I have windows 7 and ubuntu 14 installed side by side on the machine I've lost my root password, then I read this tutorial
http://www.sysads.co.uk/2014/05/reset-lost-root-password-ubuntu-14-04/
on how to recover lost ubuntu root password but I did not understand what this command mean ?
mount -rw -o remount /
I need to know that this command do and what is mounting/unmounting ? I'm afraid it may cause any data loss for me ??
Thanks