ClonezillaThe Free and Open Source Software for Disk Imaging and Cloning.

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.

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Supports multiple file system

Can clone GNU/Linux, MS Windows, Intel-based Mac OS, FreeBSD, NetBSD, OpenBSD, Minix, VMWare ESX and Chrome OS/Chromium OS, no matter whether it's 32-bit (x86) or 64-bit (x86-64) OS.

Caters different scale of usage

Clonezilla Live is suitable for single-machine backup and restore. Multicast support in Clonezilla SE helps in massive clones. BitTorrent support in the Clonezilla lite server, which is suitable for massive deployment.

Secure

Image could be encrypted. This is done with ecryptfs, a POSIX-compliant enterprise cryptographic stacked filesystem. AES-256 encryption could be used to secures data access, storage and transfer.