> And in a similar vein, HFS+ allows hard links to directories, which is a
> good way to confuse your filesystem on must Unixes (and therefore prevented
> by the OS). OS X also allows use of this feature(?), but may restrict it in
> recent versions.
Yep, Time Machine on OS X uses hard linked directories - arguably the
coolest way to allow for removing just any arbitrary snapshot.
However I'm curious how it's implemented - as on other Unices, link(2)
fails with EPERM if "the file named by path1 is a directory".
Ciao, Lobo
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