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

  • Cloned VM/Server/Computer in Linux won't boot and goes to initramfs busybox Solution
  • How To Add Windows 7 8 10 11 to GRUB Boot List Dual Booting
  • How to configure OpenDKIM on Linux with Postfix and setup bind zonefile
  • Debian Ubuntu 10/11/12 Linux how to get tftpd-hpa server setup tutorial
  • efibootmgr: option requires an argument -- 'd' efibootmgr version 15 grub-install.real: error: efibootmgr failed to register the boot entry: Operation not permitted.
  • Apache Error Won't start SSL Cert Issue Solution Unable to configure verify locations for client authentication SSL Library Error: 151441510 error:0906D066:PEM routines:PEM_read_bio:bad end line SSL Library Error: 185090057 error:0B084009:x509 certif
  • Linux Debian Mint Ubuntu Bridge br0 gets random IP
  • redis requirements
  • How to kill a docker swarm
  • docker swarm silly issues
  • isc-dhcp-server dhcpd how to get longer lease
  • nvidia cannot resume from sleep Comm: nvidia-sleep.sh Tainted: Linux Ubuntu Mint Debian
  • zfs and LUKS how to recover in Linux
  • [error] (28)No space left on device: Cannot create SSLMutex Apache Solution Linux CentOS Ubuntu Debian Mint
  • Save money on bandwidth by disabling reflective rpc queries in Linux CentOS RHEL Ubuntu Debian
  • How to access a disk with bad superblock Linux Ubuntu Debian Redhat CentOS ext3 ext4
  • ImageMagick error convert solution - convert-im6.q16: cache resources exhausted
  • PTY allocation request failed on channel 0 solution
  • docker error not supported as upperdir failed to start daemon: error initializing graphdriver: driver not supported
  • Migrated Linux Ubuntu Mint not starting services due to broken /var/run and dbus - Failed to connect to bus: No such file or directory solution