Code to change from read-only file system to read/write file system?

[stevenvollom at sbcglobal.net]

marc wrote:
> stevenvollom said:
>
>   
>> marc wrote:
>>     
>>> stevenvollom said:
>>>
>>>
>>>       
>>>> I am stuck in a command line that is read only.  I want to copy the
>>>> xorg.conf file and rename it for  back-up and am unable to do so.
>>>>     
>>>>     
>>>>         
>>>   sudo cp xorg.conf xorg.conf~
>>>
>>>
>>>
>>>       
>> Thanks but that did not work.
>>     
>
> In what way didn't it work?
>   
I got a response that I was read-only.  The command did not execute.