Accidentally in terminal I executed sudo chmod R 766 /. Now I am not able to open Ubuntu.How can i resolve this?Is there a way to access terminal? I have dual boot so can I do something from Windows?
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The easiest way is to re-install Ubuntu. – Pilot6 Sep 05 '15 at 15:08
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3possible duplicate of [What if I accidentally run command "chmod -R" on system directories (/, /etc, ...)](http://askubuntu.com/questions/43621/what-if-i-accidentally-run-command-chmod-r-on-system-directories-etc) – terdon Sep 05 '15 at 15:16
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That's why you should use sudo very carefully.
Your data are not lost, you can copy them from your existing partition to a USB key with a live CD, but you will have to reinstall your system.
Nyamiou The Galeanthrope
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The configuration of user applications are in the home folder, so you copy it somewhere and put it back in the new home folder after reinstall, but you will have to reinstall the applications. – Nyamiou The Galeanthrope Sep 06 '15 at 03:20