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Date:      Sun, 25 Jan 2009 02:11:11 +0100
From:      Polytropon <freebsd@edvax.de>
To:        FreeBSD Questions <freebsd-questions@freebsd.org>
Subject:   Comfortable dd bs= parameters for different media
Message-ID:  <20090125021111.90661db0.freebsd@edvax.de>

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Hi,

I'd like to ask which sizes are comfortable to use for reading
from different media using the dd utility. As far as I know,
these are good values:

	Format		Device (example)	bs=
	-------------	---------------------	----
	Data CD		/dev/acd0		2048
	Music CD	/dev/acd0t01		2352
	DVD		/dev/acd0		2048 (?)
	Hard disk	/dev/ad0s1g		1m (?)

The usual command is

	% dd if=/dev/see-above of=somefile.dd bs=whatever

What about copying partition-wise from a hard disk to a dd file?
Which bs= parameter would be encouraged to use?



-- 
Polytropon
>From Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...



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