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terminator2
 Post subject: Advanced Ext3/4 Recovery tool
PostPosted: October 25th, 2016, 1:46 
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Joined: November 23rd, 2010, 13:32
Posts: 548
Location: brisbane
Hi
Can someone suggest a professional Linux Ext 3/4 file system recovery tool ? ( windows based)
Linux partition is accidentally deleted.
Already tried following --
R-studio -- not satisfied
PC3000 UDMA --- no result
UFS explorer --- Not even detected Linux partition
and few others - one tool is giving good results but before I update customer I want to reach maximum efficiency
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mr_spokk
 Post subject: Re: Advanced Ext3/4 Recovery tool
PostPosted: October 25th, 2016, 2:35 
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Joined: May 21st, 2007, 16:10
Posts: 1592
Location: Gothenburg/ Sweden
Have you tried UFS Pro or regular UFS? Pro version works quite good with Raid. http://www.ufsexplorer.com/download_pro.php
And when you say Pc3000 UDMA, I assume you have the Raid edition?

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vulture_g7
 Post subject: Re: Advanced Ext3/4 Recovery tool
PostPosted: October 25th, 2016, 4:21 
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Joined: October 25th, 2016, 3:59
Posts: 4
Location: Greece
And then, there's GParted. I know, it's not windows-based, but you don't need to have a linux partition either, just make a bootable cd or usb and you're good to go. That should work!
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lcoughey
 Post subject: Re: Advanced Ext3/4 Recovery tool
PostPosted: October 25th, 2016, 8:14 
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Joined: February 9th, 2009, 16:13
Posts: 2574
Location: Ontario, Canada
mr_spokk wrote:
Have you tried UFS Pro or regular UFS? Pro version works quite good with Raid. http://www.ufsexplorer.com/download_pro.php
And when you say Pc3000 UDMA, I assume you have the Raid edition?

McDonald's sells Big Macs, but that also has nothing to do with the OP's issue with a deleted EXT partition. Although some RAIDs have EXT partitions does not mean that all EXT partitions are on a RAID.

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Luke
Recovery Force Data Recovery
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drHDD
 Post subject: Re: Advanced Ext3/4 Recovery tool
PostPosted: October 25th, 2016, 12:03 
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Joined: October 5th, 2015, 18:53
Posts: 488
Location: US
If R-studio didn't find data - there is no data or you need pro with good knowledge of ext3/4.
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mr_spokk
 Post subject: Re: Advanced Ext3/4 Recovery tool
PostPosted: October 25th, 2016, 13:25 
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Joined: May 21st, 2007, 16:10
Posts: 1592
Location: Gothenburg/ Sweden
lcoughey wrote:
mr_spokk wrote:
Have you tried UFS Pro or regular UFS? Pro version works quite good with Raid. http://www.ufsexplorer.com/download_pro.php
And when you say Pc3000 UDMA, I assume you have the Raid edition?

McDonald's sells Big Macs, but that also has nothing to do with the OP's issue with a deleted EXT partition. Although some RAIDs have EXT partitions does not mean that all EXT partitions are on a RAID.

Very true :D It was my preconception, I must been working to much with Raid last days :wink:

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terminator2
 Post subject: Re: Advanced Ext3/4 Recovery tool
PostPosted: October 26th, 2016, 3:26 
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Joined: November 23rd, 2010, 13:32
Posts: 548
Location: brisbane
:D Guys Thanks a lot for all Suggestions. :D
Here is my observation --

drHDD wrote:
If R-studio didn't find data - there is no data or you need pro with good knowledge of ext3/4.


This is not true ,Data is fully present on the disk , I have already traced aprox. 1.7TB data. So far I have recovered 356 GB Data.
This disk seems to be used in some factory in design dept. It is having large no. of files ( more than 4 lacs , 400000)
I have discussed case with developer and he has also confirmed that results are as per expcetations.
All I want to ensure that maximum technically possible data is extracted . If I get any other tool , that will improve my knowledge and tool collection as well.
mr_spokk wrote:
Have you tried UFS Pro or regular UFS? Pro version works quite good with Raid. http://www.ufsexplorer.com/download_pro.php


Yes I tried UFS explorer Pro evaluation version, it even failed to identify Linux partition.
And when you say Pc3000 UDMA, I assume you have the Raid edition?

No I don't have Raid edition , as lcoughey has said ,I think raid edition is not needed in this case. Unfortunately udma did not give good results.

vulture_g7 wrote:
And then, there's GParted. I know, it's not windows-based, but you don't need to have a linux partition either, just make a bootable cd or usb and you're good to go. That should work!


personally I don't have good experience with freeware tools. Often recovered data is not having proper directory structure .
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S.Haran
 Post subject: Re: Advanced Ext3/4 Recovery tool
PostPosted: October 26th, 2016, 11:34 
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Joined: February 16th, 2016, 21:07
Posts: 43
Location: Boston, USA
It would be helpful to know how the filesystem was deleted but in general Linux ext2/3/4 stores multiple superblock copies on the drive. Your best chance "to reach maximum efficiency" with this recovery is to mount the filesystem using one of these alternate superblocks.

But afaik this needs to happen from Linux. I have a process that will try to mount a filesystem using all possible alternate superblocks. If you would like remote help let me know.

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Serving clients worldwide since 2011
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drHDD
 Post subject: Re: Advanced Ext3/4 Recovery tool
PostPosted: October 26th, 2016, 11:40 
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Joined: October 5th, 2015, 18:53
Posts: 488
Location: US
[quote="terminator2"
This is not true ,Data is fully present on the disk , I have already traced aprox. 1.7TB data. So far I have recovered 356 GB Data.
[/quote]
So tell us what is program better than R-studio and UFS Explorer.
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terminator2
 Post subject: Re: Advanced Ext3/4 Recovery tool
PostPosted: October 26th, 2016, 22:01 
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Joined: November 23rd, 2010, 13:32
Posts: 548
Location: brisbane
S.Haran wrote:
It would be helpful to know how the filesystem was deleted but in general Linux ext2/3/4 stores multiple superblock copies on the drive. Your best chance "to reach maximum efficiency" with this recovery is to mount the filesystem using one of these alternate superblocks.

But afaik this needs to happen from Linux. I have a process that will try to mount a filesystem using all possible alternate superblocks. If you would like remote help let me know.

:D Wo great Thank you so much. :D
, Manual recovery at a times is far better than automated process. I will be more than happy to see how you mount file system.
Pls. let me know your convenient GMT , I am +9.30 hours to Massachusetts.
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S.Haran
 Post subject: Re: Advanced Ext3/4 Recovery tool
PostPosted: October 27th, 2016, 13:13 
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Joined: February 16th, 2016, 21:07
Posts: 43
Location: Boston, USA
I sent you a PM.

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Serving clients worldwide since 2011
FreeDataRecovery.us
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terminator2
 Post subject: Re: Advanced Ext3/4 Recovery tool
PostPosted: October 28th, 2016, 0:38 
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Joined: November 23rd, 2010, 13:32
Posts: 548
Location: brisbane
A big Thank You :D
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lcoughey
 Post subject: Re: Advanced Ext3/4 Recovery tool
PostPosted: October 28th, 2016, 7:22 
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Joined: February 9th, 2009, 16:13
Posts: 2574
Location: Ontario, Canada
Any chance that this would have been easily resolved with testdisk?

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Recovery Force Data Recovery
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terminator2
 Post subject: Re: Advanced Ext3/4 Recovery tool
PostPosted: October 29th, 2016, 4:06 
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Joined: November 23rd, 2010, 13:32
Posts: 548
Location: brisbane
Hi lcoughey

I have just given a try to testdisk ,but it says recovery not possible.
I have often observed difference between free softwares and commercial ones. Possibly testdisk is unable to handle large no. of files.

anyway thanks.
UFS support technican has remotely analysed partition and has suggested some changes. They have also a new software (http://www.sysdevlabs.com/product.php?id=rxp6).
I am now trying reclaim me and will post results.


Attachments:
test disk.jpg
test disk.jpg [ 101.54 KiB | Viewed 14026 times ]
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fzabkar
 Post subject: Re: Advanced Ext3/4 Recovery tool
PostPosted: October 29th, 2016, 16:37 
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Joined: September 8th, 2009, 18:21
Posts: 16960
Location: Australia
http://dmde.com/?ref=DMDE+Manual

Quote:
Simple partition manager finds and restores accidentally removed partitions using information from boot sectors of FAT, NTFS, exFAT, and superblocks of Ext2/3/4, and from their backup copies. Partitioning is displayed in the form useful for analysis and error detection.

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terminator2
 Post subject: Re: Advanced Ext3/4 Recovery tool
PostPosted: October 31st, 2016, 3:05 
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Joined: November 23rd, 2010, 13:32
Posts: 548
Location: brisbane
[quote="fzabkar"]http://dmde.com/?ref=DMDE+Manual

:good: :good: :-D :-D :-D :-D :-D :-D :-D
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