Linux How To Clone One System Harddrive to another remote system

The easiest way is to use SSH and DD or a combination of netcat.  SSH will be a little slower due to encryption but is the most secure way (on two older systems the average clone speed is about 40-50MB/s).  This is also OS independent as it doesn't matter what the source OS is because you are literallly cloning the drive so you retain the partition table and settings.


 

Clone HDD using SSH and DD

dd if=/dev/sourcedrive | ssh user@yourhostname.com "dd of=/dev/destinationdrive"

However especially in Linux you'll want to do a fsck on all partitions on the remote drive or it probably won't boot because the filesystem recognizes the partitions are not right due to the different drive sizes. More info here.

Note you will need to use sudo or root on both systems.  I also like to use a live CD/USB/Network on the remote system so that the operation can completely cleanly (especially helpful if that would be the only disk device on the remote system).

 


 

 

Clone HDD using netcat (nc)

 

This is the faster but less secure way someone could accidentally or maliciously send random/wrong data to the remote nc causing corruption.  There is of course the risk of eavesdropping where an attacker could essentially have a copy of your cloned hard drive too.

First setup the remote server.

Remote Server Setup

nc -l 29000|dd of=/dev/destinationdrive

This tells nc to listen on port 29000 and write the data to /dev/destinationdrive

Now we are ready to push the source drive from the source server.

Source Server

dd if=/dev/sourcedrive| nc remoteserver 29000

This tells dd to take data from /dev/sourcedrive and send it to an nc server at remoteserver on port 29000


Tags:

linux, clone, harddrive, systemthe, easiest, ssh, dd, netcat, slower, encryption, mb, os, doesn, literallly, cloning, retain, partition, settings, hdd, dev, sourcedrive, user, yourhostname, quot, destinationdrive, ll, fsck, partitions, filesystem, recognizes, sizes, info, sudo, usb, cleanly, disk, nc, maliciously, corruption, eavesdropping, attacker, essentially, cloned, server, remoteserver,

Latest Articles

  • qemu 4 compilation options
  • CentOS 7 8 PXEBoot Netinstall Not Working Solution "Pane is dead "new value non-exisetnt xfs filesystem is not valid as a default fs type"
  • CentOS 6 EOL yum repo won't work Error: Cannot find a valid baseurl for repo: base Solution
  • CentOS 7 8 How To Disable SELinux
  • Wordpress How To Add Featured Image To Post in Hueman Theme
  • kdenlive full reset how to erase all config files
  • CentOS 7 8 yum error Trying other mirror. To address this issue please refer to the below wiki article
  • Microsoft Teams Linux - Calendar Doesn't Work Missed Meetings!
  • Scanner not working in Linux Ubuntu Fedora Mint Debian over the network? Use sane-airscan!
  • How To Boot, Install and Run Windows 2000 on QEMU-KVM
  • bash cannot execute permission denied
  • Huion and Wacom Tablets How To Install in Linux Mint / Ubuntu and make the stylus work properly
  • ffmpeg how to cut certain parts of video out
  • ffmpeg how to concat and join two video clips
  • mencoder instead of ffmpeg to join or concatenate video files with different audio streams
  • Linux How To Stop Missing Drive from Halting Boot Process in fstab
  • How To Replace Audio Track of Video using ffmpeg
  • qemu-img convert formats vdi vmdk raw qcow2
  • Linux and Windows Dual Boot Crazy Time Issues
  • dynagen / dynamips 100% high CPU usage solution - how to set the idlepc value