Clonezilla is a partition and disk imaging/cloning program similar to True Image® or Norton Ghost®. It helps you to do system deployment, bare metal backup and recovery. Three types of Clonezilla are available, Clonezilla live, Clonezilla lite server, and Clonezilla SE (server edition). Clonezilla live is suitable for single machine backup and restore. While Clonezilla lite server or SE is for massive deployment, it can clone many (40 plus!) computers simultaneously. Clonezilla saves and restores only used blocks in the hard disk. This increases the clone efficiency. With some high-end hardware in a 42-node cluster, a multicast restoring at rate 8 GB/min was reported.

Features

  • Free (GPL) Software.
  • Filesystem supported: (1) ext2, ext3, ext4, reiserfs, reiser4, xfs, jfs of GNU/Linux, (2) FAT, NTFS of MS Windows, (3) HFS+ of Mac OS, (4) UFS of FreeBSD, NetBSD, and OpenBSD, and (5) VMFS of VMWare ESX. Therefore you can clone GNU/Linux, MS windows, Intel-based Mac OS, and FreeBSD, NetBSD, and OpenBSD, no matter it's 32-bit (x86) or 64-bit (x86-64) OS. For these file systems, only used blocks in partition are saved and restored. For unsupported file system, sector-to-sector copy is done by dd in Clonezilla.
  • LVM2 (LVM version 1 is not) under GNU/Linux is supported.
  • Grub (version 1 and version 2) is supported.
  • Unattended mode is supported. Almost all steps can be done via commands and options. You can also use a lot of boot parameters to customize your own imaging and cloning.
  • Multicast is supported in Clonezilla SE, which is suitable for massively clone. You can also remotely use it to save or restore a bunch of computers if PXE and Wake-on-LAN are supported in your clients.
  • The image file can be on local disk, ssh server, samba server, or NFS server.
  • Based on Partclone (default), Partimage (optional), ntfsclone (optional), or dd to image or clone a partition. However, Clonezilla, containing some other programs, can save and restore not only partitions, but also a whole disk.
  • By using another free software drbl-winroll, which is also developed by us, the hostname, group, and SID of cloned MS windows machine can be automatically changed.

Minimum System Requirements for Clonezilla live:

  • X86 or x86-64 processor
  • 196 MB of system memory (RAM)
  • Boot device, e.g. CD/DVD Drive, USB port, PXE, or hard drive

Limitations:

  • The destination partition must be equal or larger than the source one.
  • Differential/incremental backup is not implemented yet.
  • Online imaging/cloning is not implemented yet. The partition to be imaged or cloned has to be unmounted.
  • Software RAID/fake RAID is not supported by default. It's can be done manually only.
  • Due to the image format limitation, the image can not be explored or mounted. You can NOT recovery single file from the image. However, you still have workaround to make it, read this.
  • Recovery Clonezilla live with multiple CDs or DVDs is not implemented yet. Now all the files have to be in one CD or DVD if you choose to create the recovery iso file.

License:

Clonezilla itself is licensed under the GNU General Public License (GPL) Version 2. However, to run Clonezilla, a lot of free and open source software, e.g. the Linux kernel, a mininal GNU/Linux OS, are required.

What's New

Enhancements and Changes since 3.3.2-31

  • The underlying GNU/Linux operating system was upgraded. This release is based on the Debian Sid repository (as of 2026/Jul/05).
  • The Linux kernel was updated to 7.0.14-1.
  • Added package network-manager-tui in the live system. Thanks to Sammie Lee Walker.
  • Made the variable supp_boot_param_ocs_live_extra available to be used for netboot clients. Thanks to haifeng.
  • ocs-onthefly: Added Reverse-Connection Network Cloning. Thanks to Hell Gate for this suggestion.
  • Introduced new programs: cnvt-ocsiso-qcow2 & ocs-check-initrd-module.
  • Improved check_source_and_target_type in ocs-onthefly so that it can deal with multiple disks which have existing partitions.
  • Implemented a better way for function disable_sudo_use_pty in ocs-live-hook-functions.
  • Memtest86+ was updated to 8.10.

Bug Fixes

  • Wrong result when using ntfsclone to save a partition as Ctrl-C is pressed. Thanks to nicdai for reporting this issue.
  • Fixed: protected device name "ask_user" in ocs-onthefly. Ref: https://sourceforge.net/p/clonezilla/bugs/440