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Date: Fri, 24 Mar 2006 12:10:30 -0500
From: Kris Kennaway <kris@obsecurity.org>
To: Viren Patel <virenp@mail.utexas.edu>
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Cc: questions@freebsd.org, Kris Kennaway <kris@obsecurity.org>
Subject: Re: FreeBSD 6.1 - mount_nullfs broken?
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On Fri, Mar 24, 2006 at 08:05:31AM -0600, Viren Patel wrote:

> # umount /export/jails/testjail/dev
> # mount_nullfs -o ro /export/jails/basejail
> /export/jails/testjail/basejail
> mount_nullfs: Operation not supported by device
>=20
> After looking at the dmesg output more closely one
> discrepancy I found was the second last line:
>=20
> ad6: 238475MB <WDC WD2500JS-55MHB0 02.01C03> at
> ata3-master SATA300
>=20
> It was definitely SATA150 under FreeBSD 6.0, even after
> updates. So maybe a problem in the SATA300 driver?

Unlikely.  It looks like you don't have kernel nullfs support enabled.

Kris

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