Ubuntu – How to recover the data after formatting ubuntu with ubuntu

12.04data-recoverypartitioningtestdisk

I blew up everything while installing ubuntu 13.04 in a machine with ubuntu 12.04 installed in it. I erased the whole data accidentally. I had a separate space called backup in older OS.

Having ubuntu 13.04 currently installed, I want my previous data with ubuntu 12.04 back. I came through How can I recover my data after replacing Windows with Ubuntu? [duplicate], but in my case it's ubuntu 13 replaced by ubuntu 12.

In a live mode of ubuntu 13.04, I downloaded and run testdisk.

STEP 1 : I proceeded with a media(/dev/sda) from list

Select a media (use Arrow keys, then press Enter):
>Disk /dev/sda - 640 GB / 596 GiB - WDC WD6400BEVT-22A0RT0
 Disk /dev/sdb - 4022 MB / 3835 MiB - SanDisk U3 Cruzer Micro

STEP 2 : Then I selected Intel as partition and then Analyse category

STEP 3 : I only see following partitions

Disk /dev/sda - 640 GB / 596 GiB - CHS 77825 255 63
Current partition structure:
 Partition                  Start        End    Size in sectors

 1 * Linux                    0  32 33 77345  77 44 1242550272
 2 E extended             77345 110 12 77825  70  5    7708674
 5 L Linux Swap           77345 110 14 77825  70  5    7708672

STEP 4 : I chose to go Quick search

Disk /dev/sda - 640 GB / 596 GiB - CHS 77825 255 63
 Partition               Start        End    Size in sectors
>* Linux                    0  32 33 77345  77 44 1242550272
 P Linux Swap           77345 110 14 77825  70  5    7708672

STEP 5 : In first partition of the list (Linux), I only see currently installed files. (As 'm looking for older backup folder there.)

>drwxr-xr-x     0     0      4096 15-Mar-2014 23:59 .
 drwxr-xr-x     0     0      4096 15-Mar-2014 23:59 ..
 drwx------     0     0     16384 15-Mar-2014 23:55 lost+found
 drwxr-xr-x     0     0     12288 18-Mar-2014 22:59 etc
 drwxr-xr-x     0     0      4096 18-Mar-2014 22:41 media
 drwxr-xr-x     0     0      4096 16-Mar-2014 00:01 bin
 drwxr-xr-x     0     0      4096 16-Mar-2014 00:02 boot
 drwxr-xr-x     0     0      4096 24-Apr-2013 22:51 dev
 drwxr-xr-x     0     0      4096 15-Mar-2014 23:58 home
 drwxr-xr-x     0     0      4096 16-Mar-2014 00:01 lib
 drwxr-xr-x     0     0      4096 24-Apr-2013 22:47 lib64
 drwxr-xr-x     0     0      4096 19-Apr-2013 14:48 mnt
 drwxr-xr-x     0     0      4096 24-Apr-2013 22:46 opt
 drwxr-xr-x     0     0      4096 19-Apr-2013 14:48 proc
 drwx------     0     0      4096 16-Mar-2014 00:11 root
 drwxr-xr-x     0     0      4096 24-Apr-2013 22:51 run
 drwxr-xr-x     0     0     12288 16-Mar-2014 00:02 sbin
 drwxr-xr-x     0     0      4096 12-Jun-2012 00:21 selinux
 drwxr-xr-x     0     0      4096 24-Apr-2013 22:46 srv
 drwxr-xr-x     0     0      4096 30-Jan-2013 18:43 sys
 drwxrwxrwt     0     0      4096 18-Mar-2014 22:59 tmp
 drwxr-xr-x     0     0      4096 24-Apr-2013 22:46 usr
 drwxr-xr-x     0     0      4096 18-Mar-2014 22:59 var
 lrwxrwxrwx     0     0        29 15-Mar-2014 23:59 vmlinuz
 lrwxrwxrwx     0     0        33 15-Mar-2014 23:55 initrd.img.old
 lrwxrwxrwx     0     0        32 15-Mar-2014 23:59 initrd.img
 drwxr-xr-x     0     0      4096 15-Mar-2014 23:58 cdrom

STEP 6 : In a Deeper search,

Analyse Cylinder 2041/77824 02%
Linux                    0  32 33 77345  77 44 1242550272
Linux                    0  32 31    60 206 16     974848
Linux                    0  32 31    60 206 16     974848
Linux                    0  32 31    60 206 16     974848
Linux                    0  32 33 77345  77 44 1242550272
Linux                    0  32 33 77345  77 44 1242550272
Linux                    0  32 33 77345  77 44 1242550272
Linux                    0  32 33 77345  77 44 1242550272
Linux                   60 238 51 12218 100 42  195309568
Linux                    0  32 33 77345  77 44 1242550272
Linux                   60 238 51 12218 100 42  195309568
Linux                   60 238 51 12218 100 42  195309568
Linux                    0  32 33 77345  77 44 1242550272
Linux                    0  32 33 77345  77 44 1242550272
Linux                   60 238 51 12218 100 42  195309568
Linux                   60 238 51 12218 100 42  195309568
Linux                    0  32 33 77345  77 44 1242550272
Linux                   60 238 51 12218 100 42  195309568
Linux                  854  98 13   924 127 35    1126400
Linux                    0  32 33 77345  77 44 1242550272

When I press Enter, I get something like following in the list

Disk /dev/sda - 640 GB / 596 GiB - CHS 77825 255 63
Partition               Start        End    Size in sectors
>  Linux                    0  32 31    60 206 16     974848
Linux                    0  32 33 77345  77 44 1242550272
Linux                   60 238 51 12218 100 42  195309568
Linux                  854  98 13   924 127 35    1126400
Linux                 1596 214 27  1666 243 49    1126400
* Linux Swap           77345 110 14 77825  70  5    7708672

When I list files for the same partition, I get following message, 

Linux                    0  32 31    60 206 16     974848
Can't open filesystem. Filesystem seems damaged.

I Want experienced answers.

References

Test Disk – How to Recover Files from a Faulty Hard-Drive

Best Answer

Finally, most of data is recovered properly using R-studio, a paid tool.

How it works

Why R-Studio

R-Data Recovery Studio Guide: How To Recover Data, youtube video

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