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linuxubuntuubuntu-15.04

How to reset default permissions for / in ubuntu 15.04?

I ran the following commands in terminal

sudo -s

chmod 754 /

Now the system does not start in normal mode. However, I can luckily run root shell prompt from recovery mode. As I have a lot of useful data, so I don't want to reinstall the OS. I need to restore the default user permissions through root shell prompt.

Solution

  • If you are on recovery root prompt, please do chmod 755 /. The system needed the execute bit for all users to boot correctly.