System went read only...wont allow me to boot

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http://askubuntu.com – I accidentally made my system read only. After a quick Google search I know this can be fixed by remounting the drive using sudo mount " ". The problem is I already restarted my system thinking that would be some sort of noob fix... I am currently on a live CD since my laptop wont boot at all. The problem is the live CD does not see my laptops hard drive. How can I mount whats not their... I tried gparted but the program does not see a built in hard drive. If I trying reinstalling Ubuntu (which is not a problem since I back up everything) it says I have no hard drive?! If it helps I a (HowTos)