You can clone a drive from one machine to another using “dd” and netcat (nc)
Caveats:
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The commands should be run a root
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Data on the destination device will be overwritten, so double-check that you get the right one (maybe check with “lsblk” etc)
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The drive on the destination machine must be at least as big as the source
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The data on the source device should not changed while it is being cloned. Make sure it has no mounted partitions (it’s a good idea to boot from USB). Ditto the destination drive
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The source machine must be able to reach the destination on the port specific (not blocked by firewall etc)
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Data is sent unencrypted over the network, so make sure you get the right destination and your network is trustworthy/secure (you could so this over the internet - firewall rules permitting - but I wouldn’t recommend doing so with a drive containing sensitive data and it is going to eat up bandwidth/data-cap)
The process…
On the machine with the destination drive, run the following (where 11111 is a TCP port the machine will listen on, and /dev/sdd is the device that will be cloned to. Data will be sent in 1M blocks).
nc -l 11111 | dd of=/dev/sdd status=progress
This will begin listening for data on port 11111
On the machine with the source drive, run the following (where 192.168.1.2 is the IP address if the destination machine, /dev/sdb is the drive being cloned from, and 11111 is the port you used above)
dd if=/dev/sda status=progress bs=1M | nc 192.168.1.2 11111
You should see progress on both hosts as the drive from machine to the other
