Data Recovery

Top 5 softwares for linux data recovery

Data recovery is to make sure that the contents of the hard drive are restored without any issue and problem either with the help of the built in functionalities of the computer or by installing any third party software program. The best way to avoid the crisis totally is by making sure that enough preparation has been done in this regard so that the Disaster Recovery or DR plan could be launched. This tutorial has been written to make sure that the user gets the knowledge about the 5 most important data recovery software programs that are available in the market. It will also make sure that the user gets to know the interface so that the implementation of different commands becomes easy and effective.

5 recovery tools that work on Linux

The list that will be mentioned later comprises of those programs which are not only of high quality but also make sure that the data recovery is made simple and straightforward for all those users who are using Linux but are not tech savvy at all. These programs are stand alone and for the same reason they work on their own without any other software program installation. It means that only installing any of the 5 programs mentioned will make sure that the data is recovered from those sectors of the Linux operating system from where it cannot be accessed or recovered using the traditional methods.

1. Mondo Rescue

This program can be regarded as the best software that is available for the disaster recovery of the Linux OS. It supports all old and new versions of Linux starting from i386 to FreeBSD. The best features according to which the users have rated this program are that it also supports the external storage devices such as tapes and CD/DVD’s as storage devices for the data backup.

Advantages and disadvantages

  • -The non raid file system can be backup using this program and when it comes to restoration it can be done in form of raid file system which also includes the root partition.
  • -The hard disk partitions can be restructured.
  • -The interface of the program is complex and for a normal user it is very difficult to use.

2.Test Disk

Everyone loves to get free programs online and for all such users Test Disk is a boon as it is free to use and no charges apply. It has been exclusively developed to make sure that the lost disk partitions are recovered all those sectors of the disk that are no bootable are fixed to make sure that they become bootable again. The error fixing caused by viruses and malware can also be fixed  using this tool which makes the data recovery very swift and easy.

Advantages and disadvantages

  • -The partition table can be fixed by using this software and if the partition has been deleted accidently then it can also be recovered.
  • -NTFS boot sector backup recovery is also possible.
  • -The program is open-sourced which makes that several developers are updating which causes bugs and errors sometimes. It also causes faulty recovery of data.

3.Safe Copy

Yet another powerful and awesome tool which makes sure that the data recovery is fast and reliable. Safe copy as its name suggests makes sure that the as much data volume as possible is recovered without any issue and problem. This tool also uses the external storage media such as CD, DVD and Bluray as the source of the data recovery which is one of the best features offered.

Advantages and disadvantages
The following are some of the advantages and disadvantage of using the tool for linux data recovery:

  • -It definitely gives new life to the file that is located on the damaged media.
  • -The overall usage of the tool is very easy and the data recovery can be done in just a few clicks.
  • -It specifies and skips the hard disk sizes which might cause issue in recovering data from the source.

4.Photo Rec

It is another stunning tool that has been developed to make sure that the data is recovered from the damaged and old hard drives, CD-ROMS, DVD ROMS which are malfunctioning. As the name suggests this program is also used to make sure that the data is recovered from the digital camera memory as well which is actually in form of pictures. It directly goes for the data ignoring the file system in place due to which data from severely damaged media can also be restored without any issue and problem.

Advantages and disadvantages

  • -The interface of the program increases it usability as a novice user can also operate the program easily.
  • -As mentioned before the data recovery from badly damaged media is also possible without any issue.
  • -Again the tool is open sourced which makes it is bad choice for all those users who are of advanced level due to glitches and bugs that are encountered.

5.DD rescue

It is one of the most intelligent programs that are free and open sourced. The contents from the block disk are copied to the other drive by this program and during this process if the read data encounters errors then the program does its best to make sure that the data is backed up immediately to the destination drive. The only thing user needs to do is to make sure that the log file is read and run in reverse.

Advantages and disadvantages

  • -The tool works automatically and the data restoration is very effective and efficient.
  • -The bad sectors of the disk that need fixture and detected by the program and highlighted.
  • -The log file can be used to read multiple commands that copy different areas of the files. It makes the process messy and muddled at times.

Tips to manage Hard Drive on Linux

Following is a list of most important commands to make sure that the hard disk is managed effectively using the Linux OS:

  1. View partitions of hard drives # fdisk -l /dev/sda command is to be used.
  2. Once the partition is created it can be formatted using the # mkfs.ext3 /dev/sda7 command.
  3. To view the size of the partition # fdisk -s /dev/sda7 4843566 command should be run.
  4. Partition table issues lead to most of the issues in hard drives running on Linux OS. The code might be ling for the novice users but it has to be run in the same manner to avoid the hard drive related issues in Linux:

$ fdisk  /dev/sda

The number of cylinders for this disk is set to 9729.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)

Command (m for help): p

Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0xf6edf6ed

Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1        1959    15735636    c  W95 FAT32 (LBA)
/dev/sda2            1960        5283    26700030    f  W95 Ext'd (LBA)
/dev/sda3            5284        6528    10000462+   7  HPFS/NTFS
/dev/sda4            6529        9729    25712032+   c  W95 FAT32 (LBA)
/dev/sda5   *        1960        2661     5638752   83  Linux
/dev/sda6            3265        5283    16217586    b  W95 FAT32
/dev/sda7            2662        3264     4843566   83  Linux

Partition table entries are not in disk order

Command (m for help): x

Expert command (m for help): f
Done.

Expert command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.

 

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Data Recovery

Data Recovery

(Recover lost files)

Recover files in 550+ formats from your computer storage quickly, safely and completely.

Photo Recovery

Photo Recovery

(Recover photo and video)

A professional tool specially designed to recover photos, videos and audio files from storage devices.

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