DD not working--SUCCESS!
Karl Larsen
k5di at zianet.com
Fri Aug 31 18:32:19 UTC 2007
Ian Malone wrote:
> Karl Larsen wrote:
>> Jacques B. wrote:
>
>>> Because the clone would be of a
>>> running system. So booting from it would be comparable to booting
>>> from a system that crashed (I'm making an educated guess at that one).
>>>
>> Not a good guess. To use DD you need a computer with dd and a fast
>> cpu. I did top while dd was working and it was taking 70% of the
>> cpu's time :-P
>>
>
> It's one of the oldest Unix programs: it will copy as fast as your
> system can go. Yes, a fast system will copy faster.
>
> (BTW, it is a good guess. You are copying straight off the device,
> bypassing the filesystem.
Please explain. I am taking bytes off and putting them on file
systems. Both Hard Drives need to be running.
> The primary problem I think is the
> possibility of missing cached writes. Things like log files will
> also be in an odd state, but that is unlikely to ever be critical.
> However backups, and what you are doing is essentially the same
> thing, are best done on unmounted systems.)
I can say that my success was with me sending and receiving emails
and additions to the web browser while dd on this computer was doing
it's thing. No problems.
>
>
--
Karl F. Larsen, AKA K5DI
Linux User
#450462 http://counter.li.org.
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