On Mon, Nov 8, 2010 at 6:23 PM, James Hozier <guitars...@yahoo.com> wrote:
> # dd if=/dev/random of=/dev/sd1c &
> dd: /dev/random: Input/output error
> 0+0 records in
> 0+0 records out
> 0 bytes transferred in 0.000 secs (0 bytes/sec)
> #
>
> But /dev/urandom (dd if=/dev/urandom of=/dev/sd1c &) works fine. Is 
> /dev/random not
> supposed to be used for some reason or something?

man urandom

http://www.openbsd.org/cgi-bin/man.cgi?query=urandom&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=i386&format=html


/dev/random    This device is reserved for future support of hardware
                    random generators.

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