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Download Clonezilla - Create partition and disk images for backup purposes and restore them whenever necessary, all thanks to this powerful open-source application. Download Carbon Copy Cloner for Mac to preserve your data and the operating system's data impeccably on a bootable volume. Carbon Copy Cloner has had 5 updates within the past 6 months. Clonezilla features Filesystem supported ext2, ext3, ext4, reiserfs, xfs, jfs of GNU/Linux, FAT, NTFS of MS Windows, and HFS+ of Mac OS, Multicast is supported in Clonezilla SE, which is suitable.

What is Clonezilla?

You're probably familiar with the popular proprietary commercial package Norton Ghost®. The problem with these kind of software packages is that it takes a lot of time to massively clone systems to many computers. You've probably also heard of Symantec's solution to this problem, Symantec Ghost Corporate Edition® with multicasting. Well, now there is an OpenSource clone system (OCS) solution called Clonezilla with unicasting and multicasting!

Clonezilla, based on DRBL, Partclone and udpcast, allows you to do bare metal backup and recovery. Two types of Clonezilla are available, Clonezilla live and Clonezilla SE (server edition). Clonezilla live is suitable for single machine backup and restore. While Clonezilla SE is for massive deployment, it can clone many (40 plus!) computers simultaneously. Clonezilla saves and restores only used blocks in the harddisk. This increases the clone efficiency. At the NCHC's Classroom C, Clonezilla SE was used to clone 41 computers simultaneously. It took only about 10 minutes to clone a 5.6 GBytes system image to all 41 computers via multicasting!

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:

This release of Clonezilla live (2.6.7-28) includes major enhancements and bug fixes.
ENHANCEMENTS and CHANGES from 2.6.6-15

• The underlying GNU/Linux operating system was upgraded. This release is based on the Debian Sid repository (as of 2020/Jun/30).
• Linux kernel was updated to 5.7.6-1.
• ocs-iso, ocs-live-dev: sync syslinux-related files when copying syslinux exec files.
• When creating recovery iso/zip file, if it's in Clonezilla live environment, we have those syslinux files. Use that first so the version mismatch can be avoided. Ref: https://sourceforge.net/p/clonezilla/support-requests/127/
• Move grub-header.cfg from bootx64.efi to grub.cfg so that it's more flexible.
• To avoid conflict with the patch of grub in CentOS/Fedora, for GRUB EFI NB MAC/IP config style, the netboot file is now like grub.cfg-drbl-00:50:56:01:01:01 and grub.cfg-drbl-192.168.177.2 not grub.cfg-01-* anymore.
• Add xen-tools
• Partclone was updated to 0.3.14. The codes about xfs was updated to be 4.20.0.
• Package exfat-fuse was removed since the kernel has module for that.
• A better mechanism to deal with linuxefi/initrdefi or linux/initrd in the grub config was added.

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I was excited to see that Synology have recently integrated a PXE solution in their latest version of Diskstation Manager – DSM 4.2 beta. This makes their NAS devices even more ideal in a home virtualisation lab as they are both cheap to buy and to run (the DS212 unit that I own consumes less than 20W in use), but also easy to configure and they offer a wide range of storage and network services such as CIFS / AFP / NFS / iSCSI, LDAP, PXE, TFTP, VPN, DNS.

They also offer more powerful Enterprise versions of their NAS devices, which run the same operating system but with much faster hardware. I’ve yet to test them in a production environment, but given my experience in the lab, I am sure they would be a competitive solution.

In this post I will show you how to set up a PXE boot server that will let you perform a network installation of Centos 6.3 using your Synology NAS.

What is PXE?

PXE (pronounced pixie) stands for Preboot eXecution Environment. It’s a technology that can be used to boot a computer into an operating system from it’s network card without needing anything to be installed on the computer’s local storage devices in advance. Most modern servers come with PXE support as standard.

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It’s incredibly useful if you wish to automate the deployment of many servers without having to attend each one with an installation CD / DVD / USB stick. With a little work, you can also configure custom kickstart files to be served to each server, to save having to enter all the installation options manually.

How to set up your Synology NAS as a PXE boot server

Step 1 – Install DSM 4.2

Upgrade your Synology device to DSM 4.2 beta if you haven’t already. Follow the download links for your region, download the appropriate firmware that for your model of device, then upload it in the DSM admin panel – control panel – DSM update screen.

Step 2 – Set up the DHCP Service on your NAS

I would recommend you set up the DHCP server on your Synology first and test it works. If you are running this on your main LAN, you will need to disable the DHCP server on your router so they don’t conflict. You can download the DHCP server package in Package Center.

You will need to configure the relevant primary and secondary DNS, start and end IP addresses, netmask and gateway settings.

Once you are happy this is working, you can move on to configure the TFTP and PXE servers.

Step 3 – Set up the TFTP and PXE Services.

Tick the Enable TFTP service box. You also need to specify a folder somewhere on your NAS that can be used as the TFTP root folder.

Tick the Enable PXE service box. In the boot loader box type pxelinux.0. Fill out the remaining fields using the same settings you used for DHCP in step 2. This will override the DHCP service settings.

This will set up a DHCP service which sets DHCP 67 (boot filename) in it’s DHCP offers to be PXELINUX.0. If the server making the DHCP request is performing a PXE boot, it will attempt to retrieve and load this file via TFTP from the DHCP server IP address. It is possible to tell the server to use a different server for TFTP using DHCP option 66 – but this is not necessary in our case because the Synology NAS is performing both functions.

Step 4 – Upload the PXELINUX scripts and PXE menu to your tftp folder.

In order to get PXE boot working, we now need to upload the PXELINUX.0 and a few associated files from the SYSLINUX project to the TFTP share. I’m sure you could use other boot loaders, but I have never tried any, so I’m going to stick to what I know!

According to the Centos wiki, the minimum required files to perform a PXE network boot using Clonezilla Live are:

pxelinux.0
menu.c32
memdisk
mboot.c32
chain.c32
pxelinux.cfg/default
path/to/your_kernel_of_choice
path/to/your_init_ramdisk_of_choice
vmlinuz
initrd.img
filesystem.squashfs

Download Clonezilla live zip file (You have to use Clonezilla live 1.2.0-25 or later), and unzip the required files (vmlinuz, initrd.img, and filesystem.squashfs in dir live) to /tftpboot/nbi_img/. You can make it by something like: “unzip -j clonezilla-live-*.zip live/vmlinuz live/initrd.img live/filesystem.squashfs -d /tftpboot/nbi_img/” (Replace clonezilla-live-*.zip with the file name you just downloaded).

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To make things easier I have forked a GitHub repo that was created to get PXE Boot of a CentOS Install started but modified it for Clonezilla Live.

Edit your PXElinux config file /tftpboot/nbi_img/pxelinux.cfg/default, and append the following

Note

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1. Replace $serverIP with your IP address of tftp (DRBL) server.
2. Remember to check kernel, initrd file names and boot parameters in syslinux/syslinux.cfg from the zip file, copy them to here. It might be different from here, say vmlinuz path maybe different.
3. Here we do not put “ip=frommedia” in the boot parameters because the /etc/resolv.conf get in live-initramfs won’t exist in the system after initramfs is done.
4. “fetch” also supports http or ftp, if you want to use http or ftp instead of tftp, you have to put the file filesystem.squashfs in your http or ftp server and the corresponding path.
5. If you want to do unattended clone, you can assign clonezilla live parameters (ocs_live_run, ocs_live_extra_param, ocs_live_keymap, ocs_live_batch and ocs_lang) in kernel parameters. For example, you can use:

Step 5 – Attempt to PXE boot a server.

All you need now is a server. Ensure the server is connected to the LAN with your Synology NAS on it, then power on the server and instruct it to perform a network boot. It should make a DHCP request to the NAS, and then perform a PXE boot using the files that we copied to the TFTP server.

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If you want to load a different operating system, you need to copy across the relevant kernels / initial ramdisks for the distribution of your choice and then edit the PXE menu in pxelinux.cfg/default. You may also wish to either remove the kickstart parameter, or refer to a different kickstart of your own creation.