Does the dd command run from Ubuntu 11.10 Live CD touch a hard drive in a way that would change environment variables?

Asked by Kent Neilson on 2012-05-15

I used the Live CD to boot and duplicate a hard disk using the dd command.
Duplication command: sudo dd if=/dev/sda of=/dev/sdb bs=512k
After duplication the original drives environment variables had changed? Can the Live CD do this?

Thank you,

Kent

Question information

Language:
English Edit question
Status:
Solved
For:
Ubuntu coreutils Edit question
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Solved by:
Kent Neilson
Solved:
2012-05-16
Last query:
2012-05-16
Last reply:
2012-05-15
Wyatt Smith (wyatt-smith) said : #1

dd performs low-level copying of raw data. It will not change the environment variables.

I am curious as to what environment variables changed. Where these nix environment or windows environment?

Kent Neilson (kentneil) said : #2

These were nix environment variables.