How to clone hard drive and partition in Linux

By webmaster • 3 years ago • Linux

Hard drive or partition cloning can be used for data backup and to replicate an existing system elsewhere. It could also be used as a non-destructive method to perform hard drive forensics whereby a disk or partition is cloned, and the forensic operations are performed on the cloned image.

A few tools are available in Linux for hard drive and partition cloning, such as Partimage, Partclone, Clonezilla, and dd. dd is the simplest and is installed by default in most Linux distributions. dd is specifically developed to copy a disk or partition on a block-level directly to another disk, partition, or file.

Steps to clone hard drive and partition using dd:

Check installed disks and partitions.

$ lsblk NAME   MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT loop0    7:0    0 88.5M  1 loop /snap/core/7270 loop1    7:1    0 54.1M  1 loop /snap/lxd/10972 loop2    7:2    0 89.4M  1 loop /snap/core/6818 loop3    7:3    0 54.1M  1 loop /snap/lxd/11098 loop4    7:4    0 89.3M  1 loop /snap/core/6673 sda      8:0    0   20G  0 disk ├─sda1   8:1    0    1M  0 part └─sda2   8:2    0   20G  0 part / sdb      8:16   0    5G  0 disk └─sdb1   8:17   0    5G  0 part /mnt/data sr0     11:0    1  748M  0 rom

For this example, we're going to clone the sdb1 partition to an image file.

Check information of source disks and partitions.

From the above lsblk output, sdb1 is a 5GB partition mounted on /mnt/data.
Make sure source and target (if target is another disk or partition) is not mounted or in use.
```
$ sudo umount --force /dev/sdb1
```
Check if target has enough capacity. .
```
$ df -h /dev/sda2 Filesystem      Size  Used Avail Use% Mounted on /dev/sda2        20G  5.2G   14G  28% /
```
Target disk drive or partition needs to have at least the same capacity, and mounted partition for the target file needs to have enough free disk space. In this case, our target mounted partition still have 14GB available for the required 5GB.

Clone hard drive or partition using dd.

$ sudo dd if=/dev/sdb1 of=/root/sdb1-backup.img conv=noerror,sync status=progress [sudo] password for user: 5347731456 bytes (5.3 GB, 5.0 GiB) copied, 49 s, 109 MB/s 10483712+0 records in 10483712+0 records out 5367660544 bytes (5.4 GB, 5.0 GiB) copied, 49.2271 s, 109 MB/s

Cloning an entire disk will also clone the master boot record and partition table

Check backup details.

$ sudo file /root/sdb1-backup.img /root/sdb1-backup.img: Linux rev 1.0 ext4 filesystem data, UUID=d430e0a1-ec3e-4bed-b16a-e2d35d0f4ed6 (extents) (64bit) (large files) (huge files)

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0,void 0,(function*(){this.state=e,e.init(this.context),yield this.track()}))}transitionToDisabled(e,t){return __awaiter(this,void 0,void 0,(function*(){this.state=e,Render.message(e.message),Render.injectJS(t.javascript),Render.revealPage(),yield this.track()}))}track(){var e;return __awaiter(this,void 0,void 0,(function*(){if(!this.state.track)return Promise.resolve();try{const t=this.state.trackingType;return null===(e=this.pixels)||void 0===e||e.dispatchEvent({type:t}),trackVisit({context:this.context,callbacks:this.google.callbacks},t)}catch(e){return}}))}get eligibleForZeroClick(){const{cannotPark:e,canZeroClick:t,zeroClick:n}=this.findDomainResponse,{cannotLoadAds:i,wantsToServeAds:s}=this.google;return this.adblock.state!==Blocking.BLOCKED&&(!!t&&(!!e||(!(!i||s)||!!(null==n?void 0:n.reason))))}get context(){var e,t,n,i;const s=this.findDomainResponse,a=this.parkResponse,o=null===(e=this.state)||void 0===e?void 0:e.toContext(),r=null===(t=this.adblock)||void 0===t?void 0:t.toContext(),d=null===(n=this.google)||void 0===n?void 0:n.toContext(),c=browserState(),l=Object.assign(Object.assign({},null===(i=this.findDomainResponse)||void 0===i?void 0:i.zeroClick),this.zeroClickResponse);return Object.assign(Object.assign(Object.assign(Object.assign(Object.assign(Object.assign(Object.assign({app_version:APP_VERSION},s),a),r),d),o),c),{zeroClick:l})}init(){return __awaiter(this,void 0,void 0,(function*(){try{window.__parkour=this,yield this.main()}catch(e){console.error("app",e);const t=Failed.fromError(e);this.state=t,Render.message(t.message),Render.revealPage()}}))}}(new App).init(),exports.App=App}));

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