Difference between revisions of "Partition-table-recovery"

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<pre>
 
<pre>
 +
$ mount | grep sda
 +
/dev/sda1 on / type ext4 (rw,relatime,errors=remount-ro,data=ordered)
 +
/dev/sda6 on /home type ext4 (rw,relatime,data=ordered)
 +
/dev/sda5 on /var type ext4 (rw,relatime,data=ordered)
 +
 +
$ df -h | grep sda
 
Filesystem      Size  Used Avail Use% Mounted on
 
Filesystem      Size  Used Avail Use% Mounted on
−
udev            3.7G    0  3.7G  0% /dev
 
−
tmpfs          759M  9.5M  750M  2% /run
 
 
/dev/sda1        37G  11G  24G  32% /
 
/dev/sda1        37G  11G  24G  32% /
−
tmpfs          3.8G  17M  3.7G  1% /dev/shm
 
−
tmpfs          5.0M  4.0K  5.0M  1% /run/lock
 
−
tmpfs          3.8G    0  3.8G  0% /sys/fs/cgroup
 
 
/dev/sda6        18G  9.3G  7.3G  57% /home
 
/dev/sda6        18G  9.3G  7.3G  57% /home
 
/dev/sda5        92G  55G  33G  63% /var
 
/dev/sda5        92G  55G  33G  63% /var
−
cgmfs          100K    0  100K  0% /run/cgmanager/fs
+
 
−
tmpfs          759M  8.0K  759M  1% /run/user/1001
 
−
/dev/sdb1      2.0G  1.9G    0 100% /mnt/sdb1
 
−
/dev/sdb5        47G  119M  45G  1% /mnt/sdb5
 
 
</pre>
 
</pre>
 +
 +
 +
Test disk 7.x analysis shows:
 +
 +
<pre>
 +
TestDisk 7.0, Data Recovery Utility, April 2015
 +
Christophe GRENIER <grenier@cgsecurity.org>
 +
http://www.cgsecurity.org
 +
 +
 +
Disk /dev/sda - 160 GB / 149 GiB - SAMSUNG HD160JJ
 +
    CHS 19457 255 63 - sector size=512
 +
 +
>[ Analyse  ] Analyse current partition structure and search for lost partitions
 +
[ Advanced ] Filesystem Utils
 +
[ Geometry ] Change disk geometry
 +
[ Options  ] Modify options
 +
[ MBR Code ] Write TestDisk MBR code to first sector
 +
[ Delete  ] Delete all data in the partition table
 +
[ Quit    ] Return to disk selection
 +
 +
 +
 +
 +
 +
Note: Correct disk geometry is required for a successful recovery. 'Analyse'
 +
process may give some warnings if it thinks the logical geometry is mismatched.
 +
</pre>
 +
 +
 +
- STEP - analysis shows:
 +
 +
<pre>
 +
TestDisk 7.0, Data Recovery Utility, April 2015
 +
Christophe GRENIER <grenier@cgsecurity.org>
 +
http://www.cgsecurity.org
 +
 +
Disk /dev/sda - 160 GB / 149 GiB - CHS 19457 255 63
 +
    Partition              Start        End    Size in sectors
 +
>* Linux                    0  32 33  4862 205 15  78118912
 +
P Linux                4863  47 49 17020 164 40  195309568
 +
P Linux                17020 197 10 19335 183 48  37189632
 +
L Linux Swap          19335 216 18 19457  53 52    1949696
 +
 +
 +
 +
Structure: Ok.  Use Up/Down Arrow keys to select partition.
 +
Use Left/Right Arrow keys to CHANGE partition characteristics:
 +
*=Primary bootable  P=Primary  L=Logical  E=Extended  D=Deleted
 +
Keys A: add partition, L: load backup, T: change type, P: list files,
 +
    Enter: to continue
 +
ext4 blocksize=4096 Large_file Sparse_SB Recover, 39 GB / 37 GiB
 +
</pre>
 +
 +
 +
 +
 +
<!-- EOF -->

Latest revision as of 02:30, 28 July 2018

$ mount | grep sda
/dev/sda1 on / type ext4 (rw,relatime,errors=remount-ro,data=ordered)
/dev/sda6 on /home type ext4 (rw,relatime,data=ordered)
/dev/sda5 on /var type ext4 (rw,relatime,data=ordered)

$ df -h | grep sda
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1        37G   11G   24G  32% /
/dev/sda6        18G  9.3G  7.3G  57% /home
/dev/sda5        92G   55G   33G  63% /var


Test disk 7.x analysis shows: 

TestDisk 7.0, Data Recovery Utility, April 2015
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org


Disk /dev/sda - 160 GB / 149 GiB - SAMSUNG HD160JJ
     CHS 19457 255 63 - sector size=512

>[ Analyse  ] Analyse current partition structure and search for lost partitions
 [ Advanced ] Filesystem Utils
 [ Geometry ] Change disk geometry
 [ Options  ] Modify options
 [ MBR Code ] Write TestDisk MBR code to first sector
 [ Delete   ] Delete all data in the partition table
 [ Quit     ] Return to disk selection





Note: Correct disk geometry is required for a successful recovery. 'Analyse'
process may give some warnings if it thinks the logical geometry is mismatched.


- STEP - analysis shows: 

TestDisk 7.0, Data Recovery Utility, April 2015
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org

Disk /dev/sda - 160 GB / 149 GiB - CHS 19457 255 63
     Partition               Start        End    Size in sectors
>* Linux                    0  32 33  4862 205 15   78118912
 P Linux                 4863  47 49 17020 164 40  195309568
 P Linux                17020 197 10 19335 183 48   37189632
 L Linux Swap           19335 216 18 19457  53 52    1949696



Structure: Ok.  Use Up/Down Arrow keys to select partition.
Use Left/Right Arrow keys to CHANGE partition characteristics:
*=Primary bootable  P=Primary  L=Logical  E=Extended  D=Deleted
Keys A: add partition, L: load backup, T: change type, P: list files,
     Enter: to continue
ext4 blocksize=4096 Large_file Sparse_SB Recover, 39 GB / 37 GiB



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