Date: Wed, 14 Nov 2012 19:06:02 -0700 (MST) From: Warren Block <wblock@wonkity.com> To: Mike Clarke <jmc-freebsd2@milibyte.co.uk> Cc: freebsd-questions@freebsd.org Subject: Re: Mounting SD card. Message-ID: <alpine.BSF.2.00.1211141904580.57127@wonkity.com> In-Reply-To: <201211142058.18913.jmc-freebsd2@milibyte.co.uk> References: <CAGwOe2bDa2rYpVie3L_E-6=d%2B9uKkoeOHJE9bboAivM5X5rWhw@mail.gmail.com> <201211142058.18913.jmc-freebsd2@milibyte.co.uk>
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On Wed, 14 Nov 2012, Mike Clarke wrote: > On Wednesday 14 November 2012 19:43:30 Fernando Apesteguía wrote: > >> If I boot the system and plug the SD card in, the green led >> doesn't even switch on and there is only a /dev/da0 that I can not >> mount. If I boot the system with the card plugged in, the green led is >> on and there is a /dev/da0s1 device that I can't still mount because >> mount_msdosfs returns an Input/Output error after some time. > > I think that's pretty much standard behaviour. The solution appears to be > to "wake" it up with the following incantation: > > dd if=/dev/null of=/dev/da0 count=0 > > That's what works here. See the thread starting with > <http://lists.freebsd.org/pipermail/freebsd-questions/2010-February/212109.html>; true > /dev/da0 is a little shorter and safer. The search keywords for this are "GEOM retaste" or "retasting".help
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