I want to fix permissions on another disk with chown. Set the permissions to a user which does not exist on the system which is currently running.
Does that work without adding the user?
11 Answer
Use the numerical UID/GID instead of the user/group name.
You can find the UID/GID on the system the disk belongs to by using
id some_username or
ls -ln some_file where some_file is a file that belongs to user you are looking for