Duplicate several drives concurrently

dd if=/dev/sda | tee >(dd of=/dev/sdb) | dd of=/dev/sdc
If you have some drive imaging to do, you can boot into any liveCD and use a commodity machine. The drives will be written in parallel. To improve efficiency, specify a larger block size in dd: dd if=/dev/sda bs=64k | tee >(dd of=/dev/sdb bs=64k) | dd of=/dev/sdc bs=64k To image more drives , insert them as additional arguments to tee: dd if=/dev/sda | tee >(dd of=/dev/sdb) >(dd of=/dev/sdc) >(dd of=/dev/sdd) | dd of=/dev/sde

23
By: nerd65536
2009-12-11 17:34:38

What Others Think

Shouldn't be possible to do the following with tee, instead of piping: dd if=/dev/sda | tee >(dd of=/dev/sdb) >(dd of=/dev/sdc) | dd of=/dev/sdd Anyway, great command!
inkel · 777 weeks and 4 days ago
Yep, you're right. I updated the notes.
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