Please, i am using Ubuntu 11.10 and I made a mistake in system directories, changed permissions of all content to 777. I was trying to correct some files, but i cant fix all directories and files. Can I return to default permissions??
closed as too localized by Javier Rivera, mikewhatever, Ringtail, fossfreedom♦ Mar 31 '12 at 22:24
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fdisk, format, reinstall, doo dah, doo dah. i.e.
some blanket chmod'ing and chowning in /etc is not going to fix this. you've made a proper mess of things, and a reinstall is the quickest and cleanest way to fix it RIGHT. any thing else, short of restoring content or images from backups is both a waste of time and incomplete.
chalk it up to experience (i've certainly hosed many an install learning), and move forward.
Let's do this from the terminal
In case you need to reset the permissions on sudoers, the permissions should be set to:
It is owned by root.root
I think most file system have permission of 755 for folders and 644 for files except for /bin which has executable files with root as owner.Hope this helps...