Troy Rollo <[email protected]> writes:
> On Thursday 01 July 2010 19:00:34 Daniel Pittman wrote:
>
>> On which file system, without causing it serious errors? I can't say
>> categorically that nothing allows it, but it is considered to be a serious
>> violation of the semantics of the system by ... well, most things.
>
> You certainly used to be able to do it on the historical UNIX filesystems.
Do you mean "you could, but it broke things", or "you could, and it worked
fine", though?
I agree you could do it, just like you could unlink a directory. The results
were not healthy, though, on any (historic) platform I am aware of.
[...]
>> ...while you used to be able to break things as root, on some platforms, it
>> wasn't ever considered a healthy thing to do — at least, to the best of my
>> knowledge on the topic.
>
> It was always considered a bad idea, although in some limited circumstances
> useful. Apparently some backup tools on OSX (or whatever it's called this
> week) do it.
TimeMachine, and apparently it does. Rumor varies about it being possible to
do this without being TM under Snow Leopard... Still, a modern system that
allows a cyclic graph in the file system. Their VFS cache implementers must
love them for putting that into the system. :)
Daniel
--
✣ Daniel Pittman ✉ [email protected] ☎ +61 401 155 707
♽ made with 100 percent post-consumer electrons
--
SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/
Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
