Dear Baskar,

Thanking you for your solution. Please tell one thing how can i open the
Linux partition in live dvd.

Already I tried the below solution


On Fri, Apr 24, 2015 at 6:11 PM, Baskar Selvaraj <bas...@linuxpert.in>
wrote:

> On 4/24/15, Selvakumar Apparsamy <selvakumar...@gmail.com> wrote:
> > By mistake I changed my root directory permissions to 777.
> >
> > So that I can't use sudo. Let me know any solution as soon as possible.
>
> 1. Boot from any live dvd and mount the 'linux partition' where you
> have the /root  directory
>
> 2. chmod 700 to /root directory
>
> 3.  unmount the partition and reboot your machine.
>
> S. Baskar
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-- 
       Thanking You
Selvakumar Apparsamy
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