I need to write random data to a partition before encrypting it. Suggested way is to use urandom:
#dd if=/dev/urandom of=/dev/sda2
What is the use of operand "bs" in the following case? I see the above command executed as follows sometime:
#dd if=/dev/urandom of=/dev/sda2 bs=1M
For the hard drive I got, should I use the following command:
#dd if=/dev/urandom of=/dev/sda2 bs=4096
From what I understand, the first command above will write data in 512 byte blocks, the second one in 1MB blocks, and the third in 4096 byte blocks. Right?
I am a bit confused about the usage of this operand in this case.
--
Kind regards,
Yudi
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