Re: dd if=/dev/random of=data.bin bs=512 count=1
From: Jon
Date: Sat May 23 2009 - 15:13:22 EST
Hello KOSAKI,
Thank you for your reply.
KOSAKI Motohiro wrote:
Hello
Issuing this command, I expected to get a file 4096 bytes in size.
Could someone let me know if I have missed something..? Or is there a
problem with using /dev/random this way?
if I have a count=10 it hangs forever (several hours).
Changing to use /dev/urandom and it generates the file ok.
you already have the answer. /dev/random might blocked, /dev/urandom doesn't.
Is this a "feature" of /dev/random ? ..it does not seem very useful to
have it able to block for so long.
Please include my email address in replies, as I'm not a member of this
list.
Best regards, Jon
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