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Date: Thu, 5 Jul 2007 10:43:16 +0700 (ICT)
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From: Olivier Nicole <on@cs.ait.ac.th>
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Subject: Re: Allowing noschg in multi-user mode on Mac OS X
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> I also realize I can boot into single-user mode
> (http://docs.info.apple.com/article.html?artnum=106388) where "chflags
> noschg" works just fine, but I'd like to use noschg more as advisory
> protection from myself, not something that requires single-user mode
> to undo.

Too bad but the schg flag is not an advisory protection, it is a
strong denial protection.

If you need only advisory protection, use what ever tool is made for
advisory protection, for example chmod a-w

Bests,

Olivier