Acquiring a hard disk image through SSH

naleen · 03-07-2009, 10:12 PM

Hi guys, I have two computers with linux installed. I need to take a bit-stream (bit-by-bit) image of one computer's hard disk (IP : 192.168.0.2) to the other computer (Ip: 192.168.0.196) over the network. I have the root access for both of the computers. How can I do this using 'dd' and 'ssh'? Thanks a lot.

mobydick · 03-07-2009, 10:22 PM

So, you want to clone a hard disk?
I'll give you an example how ddworks. Suppose I have 2 hard disks installed on my machine and want to dump the 1st one onto another.The first hard drive is called /dev/hdaand the second will be /dev/hdc. The command ~#:dd if=/dev/hda of=/dev/hdc bs=2048/4096
will copy the whole contents of the first hard disk onto the second.
2048 or 4096 determines the speed of that.
I don't know how to use ssh, because I've never used that, but I guess you should pipe the output of dd to ssh.

Uncle_Theodore · 03-07-2009, 11:00 PM

You'd be better off using netcat, not ssh (scp). Here's an example.
http://www.cyberciti.biz/tips/howto-...r-network.html