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Date:      Wed, 13 Oct 2010 14:11:48 -0400
From:      Scott Charron <shewless@unleashed-web.org>
To:        freebsd-usb@freebsd.org
Subject:   FreeBSD8 on USB stick - power loss causes corruption
Message-ID:  <AANLkTi=zzcMsH3VDPcn1tN2XHNhtxYCQjWj1WSTePUWE@mail.gmail.com>

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Hi,

I don't know if this is a USB problem or not - but I figured I'd start here.

I have a Acer H340.  I installed a barebones install of FreeBSD8.1
(release).  I previously had FreeBSD8.0 release and was experiencing the
same problem.

I have a 4GB USB memory stick that I installed FreeBSD onto (512M /, 512M
/var, remaining /usr).

Everything works great, but if if the PC receives a power loss I get file
system corruption problems:

Something like:

* /dev/ad0s1a: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.*


I tested some shutdown -r nows and that seems to work.. but a power loss
causes corruption.

I have tried 2 different USB sticks, different brands, both 4GB.  The latest
one is a brand new patriot high speed drive.

Any ideas?

Thank you



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