using dd to copy my freebsd partion to another drive

D Velez dvelez502 at
Sun May 25 09:07:22 PDT 2003

Hi, I would like to know what would be the best
block size to use when using the dd command.
I read many web pages on how to use the dd
command, but all have different block sizes
and I am confuse. I see some as bs=512 bs=1024
bs=8192, etc....

Is there a way to calculate the block size of the
two hard drives myself or is there a standard
block size to use for any hard drive, cdrom and floppy.

I appreciate your help


David V

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