can't delete /foo
I created a directory, /foo, which was its own partition.
I first wanted to change the group of /foo to bar, but it wouldn't let
me do that, even as root. I got the error message "operation not
premitted: /foo" Then I thought this is screwed up, so I tried to
delete /foo, but rm -r /foo just says operation not premitted, and it
doesn't go away. rm -rf /foo doesn't echo any errors, but it also
doesn't delete /foo. Any clue what could be causing this?