On Sun, 25 Jan 2009 02:11:11 +0100, Polytropon <free...@edvax.de> wrote:
> 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 (?)

AFAICT these are fine.

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

Presumably the destination file will also be on hard disk (or USB flash,
or SSD).  It may be ok to use 1m then :)

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