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Date:      Sat, 2 Oct 2010 13:25:48 +0100
From:      Bruce Cran <bruce@cran.org.uk>
To:        Phan Quoc Hien <phanquochien@gmail.com>
Cc:        freebsd-fs@freebsd.org, Ronald Klop <ronald-freebsd8@klop.yi.org>
Subject:   Re: Data loss when hard shutdown!
Message-ID:  <20101002132548.00002898@unknown>
In-Reply-To: <AANLkTik53kP7K-EcHy=uO2QdAJe5r7MvJxmbsCQ_b0Ye@mail.gmail.com>
References:  <AANLkTi=eib81J1zUT_HmPcXOBFiLDFmyA8Q-KZV5HikE@mail.gmail.com> <op.vjx6e4o08527sy@212-123-145-58.ip.telfort.nl> <AANLkTik53kP7K-EcHy=uO2QdAJe5r7MvJxmbsCQ_b0Ye@mail.gmail.com>

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On Sat, 2 Oct 2010 19:19:12 +0700
Phan Quoc Hien <phanquochien@gmail.com> wrote:

> Thanks for your respond.!
> Yes. I pulled the power plug .
> I edited rc.conf and save it then pulling the power plug. And system
> boot next time rc.conf is a blank file...!

This is an issue when using SoftUpdates - data isn't written to disk
immediately, and empty files are produced when power is lost. See
http://www.freebsd.org/doc/en/books/faq/disks.html#SAFE-SOFTUPDATES for
details. 

-- 
Bruce Cran



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