Date: Sun, 22 Nov 2009 16:32:29 -0800 From: "Ronald F. Guilmette" <rfg@tristatelogic.com> To: freebsd-questions@freebsd.org Subject: Re: BTX Loader crashes -- Help wanted Message-ID: <22340.1258936349@tristatelogic.com> In-Reply-To: <20091121015230.cf2c15dd.freebsd@edvax.de>
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In message <20091121015230.cf2c15dd.freebsd@edvax.de>, Polytropon <freebsd@edvax.de>wrote: >On Fri, 20 Nov 2009 15:48:34 -0800, "Ronald F. Guilmette" <rfg@tristatelogic.c >om> wrote: >> But I have one question. The author sez to do this: >> >> dd if=8.0-BETA1-amd64-memstick.img of=/dev/da0 bs=10240 conv=sync >> >> I just want to know what the effect of conv=sync and why it might be >> necessary. >... >it appears that the data is ensured to be "properly >aligned" with a possibly different block size on the >source or target media. As far as I remember, not >giving the bs= argument would result in a default >block size of 512 bytes which may - but don't ask >me why - lead to a non-functioning target USB stick. Actually, I already _did_ ask why.
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