On 09/04/17 17:16, Raymond Wiker wrote:
> Ahem A Rivet's Shot  writes:
>
>> On Sat, 08 Apr 2017 19:46:53 -0700
>> "DisneyWizard the Fantasmic!"  wrote:
>>
>>> [SOLVED] {dd if=/dev/sdb of=/dev/sda &} duplicates terabyte drives.
>>
>>  It will go much faster with bs=64k added to the arguments.
>
> Probably even faster with (a little higher) blocks... and using raw
> devices (/dev/rsd{a,b}) may also help.
>
ls -l /dev/rs*
ls: cannot access /dev/rs*: No such file or directory

In fact e raw devices are IIRC /dev/sd[abcd] etc.
The partitions are /dev/sd[abcd][12345...]

--
Future generations will wonder in bemused amazement that the early
twenty-first century’s developed world went into hysterical panic over a
globally average temperature increase of a few tenths of a degree, and,
on the basis of gross exaggerations of highly uncertain computer
projections combined into implausible chains of inference, proceeded to
contemplate a rollback of the industrial age.

Richard Lindzen

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