in reply to Re^2: Regexp parses only first line correctly
in thread Regexp parses only first line correctly

Yes, I see that you (almost completely) changed your original reply, but with no indication of the changes.

Even better might be

\s+ \w+: \s /\w*(?:/\w+)* \s+ # host, partition
Update: Getting a regex in there that matches all possible (legal) path specifications is more complicated than what I have here. Usual advisories about "know your data" apply.