I am using debian os on pi3 and I completely lost the control of device. I messed up when I try to chmod on some folder. Here is what I did. I was already at: /var/www/html so i wanted to chmod the contents of html and executed that command:

sudo chmod o=rwx /.

After that I cant even change directory, I cant use sudo commands too. If there is a way to restore my pi it would be perfect. thanks for your answer in advance.

  • I believe that certain Linux distributions will allow you to read off the Pi's sd card which would allow you to recover some of your data May 17, 2016 at 14:05

2 Answers 2


Just reinstall, and restore any changes from your backups.

  • One could add: "you sure do have backups, don't you?"
    – Ghanima
    May 17, 2016 at 8:23
  • @Ghanima i can relate
    – fcanozkan
    May 17, 2016 at 12:06

You could copy the sd card with all the data on a computer, and restore and necessary files after reinstalling.

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