Date: Thu, 20 Aug 2009 14:42:05 -0800 From: Mel Flynn <mel.flynn+fbsd.questions@mailing.thruhere.net> To: freebsd-questions@freebsd.org Cc: Tim Judd <tajudd@gmail.com>, Scott Schappell <archon@silvertree.org> Subject: Re: Remounting a drive as read/write crashes the system and no dmesg.boot Message-ID: <200908201442.06321.mel.flynn%2Bfbsd.questions@mailing.thruhere.net> In-Reply-To: <ade45ae90908181311w1c34218as5a2e13bf6cba3634@mail.gmail.com> References: <00B06063-9872-4ACE-8767-1221C22E33EE@silvertree.org> <ade45ae90908181311w1c34218as5a2e13bf6cba3634@mail.gmail.com>
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On Tuesday 18 August 2009 12:11:10 Tim Judd wrote: > On 8/18/09, Scott Schappell <archon@silvertree.org> wrote: > > I have a drive (/dev/ad2s1d) mounted to /backup that I want to be read > > only until the backup scripts run and then it will be read/write. If > > I set /etc/fstab to: > > > > /dev/ad2s1d /backup ufs ro > > 0 0 > > On my CF-based devices (firewalls.. nagios boxes, etc), I run: > > mount -uw / > to update the mount (not mount again) the filesystem. If you're > trying to mount again, I could understand why the box panics. I don't. It's perfectly valid to mount a device multiple times and on the same node even. Certainly unmounting then remounting should not panic the system. If you keep getting this panic, please try and obtain a crash dump, though I suspect this to be driver or hardware related as I can't imagine such a bug has slipped into vfs/ufs. -- Mel
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