MacOS – User /System Permissions none.(Set to 000)

macospermission

A previously called friend of mine (As for now, after this he is no longer called that way) was messing up with my computer without my knowledge , and ultimately he set the System folder permissions to be 000 for all files in it.

Well, as I realized everything froze and as soon as I restarted the computer it won't go pass Apple screen, however I'm able to run gnome on it. Is there any way I could reset the permissions for that entire folder anyhow? Or if there is not, is there any way I could extract some files on the hard drive? I'm completely desperate.

Best Answer

Boot into single user mode (hold ⌘S on boot), then enter:

mount -uw /
chown root /
chmod 1775 /
exit

This will reset the permissions for the entire drive and all its contents allowing full read and write, and may take a long time — don't interrupt it. Once you are booted back in, go to Disk Utility and do a permissions repair to set the permissions correctly per OS X.

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MacOS – Moving a folder copies it, no longer moves it

Do you have write permission to the parent folder of the folder? If you don't, you can force moving the folder by holding command while dragging it.

You can see if you have write permission to a folder by running ls -led /path/to/folder:

$ ls -led Desktop/untitled\ folder/
drwxr-xr-x+ 2 lauri  staff  68 Nov 21 08:46 Desktop/untitled folder/
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Best Answer

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