dd how to backup and restore disk images including compression with gzip

dd is a very handy tool and there are some more practical things we can do.  For example if we want to dump a 3TB drive and want to preserve it and only 200GB are being used on the 3TB we can save a lot of space with gzip.

Backing Stuff up with dd

How to Use dd to backup a raw hard drive and tar gzip at once

  • Change /dev/sda to the drive you want to backup
  • Change /mnt/extraspace to the path you want to backup to

sudo dd if=/dev/sda bs=20M| gzip -c > /mnt/extraspace/backup.img.gz
 

How to use dd to backup a raw hard drive WITHOUT compression:

sudo dd if=/dev/sda of=/mnt/extraspace/backup.img.gz bs=20M

Restoring Stuff with dd

Restoring is just the opposite.

How to restore a raw image with dd with compression:

change the /dev/sdX to the drive you want to restore to (be careful and understand /dev/sdX will be totally wiped out and erased with this operation or at least as much data as the image contains)

gunzip -c /mnt/yourddimage.img.gz | dd of=/dev/sdX

How to restore a raw image with dd WITHOUT compression:

change the /dev/sdX to the drive you want to restore to (be careful and understand /dev/sdX will be totally wiped out and erased with this operation or at least as much data as the image contains)

sudo dd if=/mnt/yourddimage.img of=/dev/sdX bs=10M


Tags:

dd, restore, disk, images, compression, gzipdd, tb, preserve, gb, gzip, backing, tar, dev, sda, mnt, extraspace, sudo, bs, img, gz, restoring, sdx, erased, contains, gunzip, yourddimage, imag,

Latest Articles

  • How To Stop DNSMasq from listening on all IPs/Interfaces and allow only localhost
  • du - VAS Billing Subscriptions Hack/Scam MLPremiumSub Invascom Astromart Issues Complaint
  • Docker Swarm vs Kubernetes Comparison Guide
  • When is it time to leave your VPS/VDS Cloud Hosting Provider?
  • 2024 Buyer's Guide: How to Choose and Buy the Best VPS/VDS for Your Needs - Tips and Strategies
  • Postfix / sendmail config for DKIM, SPF and DMARC Tutorial Guide E-mail Delivery for Hotmail.com Gmail.com and More HowTo
  • Install Grafana on Linux Debian Ubuntu Tutorial Guide
  • How To Completely Disable ufw in Linux Ubuntu Mint Debian
  • System has not been booted with systemd as init system (PID 1). Can't operate. Failed to talk to init daemon. Ubuntu Debian Linux Solution Cannot reboot
  • Mint Ubuntu Linux Gnome Showing Home Directory on Desktop instead of Desktop Directory
  • vi vim not doing code highlighting E319: Sorry, the command is not available in this version solution
  • Proxmox How To Rename Node Hostname Fix Solution
  • Linux how to get list of all timezones on system Ubuntu
  • Proxmox install issue cannot see the buttons or install wrong / bad resolution cannot see the entire screen problem solution
  • configure.ac:75: error: possibly undefined macro: AC_PROG_LIBTOOL If this token and others are legitimate, please use m4_pattern_allow. See the Autoconf documentation. solution
  • Can't exec "aclocal": No such file or directory at /usr/share/autoconf/Autom4te/FileUtils.pm line 326. autoreconf: failed to run aclocal: No such file or directory solution
  • /bin/sh: autoreconf: command not found solution
  • glib-2.0 required to compile QEMU solution
  • How To Upgrade Debian 8,9,10 to Debian 12 Bookworm
  • Linux dhcp dhclient Mint Redhat Ubuntu Debian How To Use Local Domain DNS Server Instead of ISPs