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Date:      Sun, 14 Sep 2014 14:55:04 -0400
From:      Michael Powell <>
Subject:   Re: Using the ISO releases on USB sticks.
Message-ID:  <lv4oa8$md4$>
References:  <> <> <> <> <>

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Warren Block wrote:

> On Sun, 14 Sep 2014, atar wrote:
>> Just wanted to know please why does the command 'dd
>> if=FreeBSD-i386-disc1.iso of=myUSB-stick' doesn't make the USB stick
>> bootable like it would does for CDROMs or DVDs? What's the difference
>> between CDROM and an USB?
> [top-posting deleted, please don't do that]
> dd just copies bytes from one place to another.  An ISO image file is
> not bootable from a hard disk or USB stick, which require a different
> format and bootcode.
> Some Linux systems use install files that are dual-purpose and can work
> from CD or USB.  FreeBSD does not do that.
> Some writing utilities can take apart an ISO image and convert it to a
> bootable USB stick.  I don't know if any of those work for FreeBSD ISO
> images any more.

There is an FreeBSD-10.0-RELEASE-amd64-memstick.img here:

Haven't used this approach yet myself (been meaning to try it), but I 
believe dd'ing this image to the USB stick is what will work.


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