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Old 09-07-2016, 09:12 AM   #1
Patric.F
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Recover lost partition


Ok so this might be one of the biggest mistakes I've ever done.
I was going to install Windows 10 on my computer. And as always I remove every drive before installation except the one that I want to install Windows on. BUT somehow I forgot this time.

When i get to the partitioning step during the Windows installation I remove all the partitions as I always do and create a new partition on the installation-disk. I click next and install.

Everything went fine until I noticed that I had forgot to disconnect my 2TB drive of my ext4 partition with all of my family photos, videos etc.

I fucking panic at this time and notice that I removed the partition and in all the panic I deleted the partition again so the system wouldn't write anything to it.

It appears that the Windows installer made a "System Reserved" partition on my 2TB disk..

I boot up on Linux and run testdisk to see if I can restore the partition.
It appears that it finds my old ext4 partition and I proceed to restore it. It asks me to reboot and when I mount the partition after reboot it's the damn System Reserved stuff of 500MB that is there.....

So now my question is. Can I in some way restore my data or at least parts of my data?
If so, how?

Or am I totally screwed here?

Please, any help is appreciated and I'm freakin' desperate!
My wife will kill me if she finds out.
 
Old 09-07-2016, 09:16 AM   #2
Emerson
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photorec can help, the data that was overwritten is lost. Hard drives die all the time, what was your plan for a hard drive failure?
 
Old 09-07-2016, 09:26 AM   #3
Patric.F
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Quote:
Originally Posted by Emerson View Post
photorec can help, the data that was overwritten is lost. Hard drives die all the time, what was your plan for a hard drive failure?
Thanks, I will try that.
I actually had a valid backup before but it got destroyed. I just got my fiber connection installed and that's was what I was waiting for to upload it on my Google Drive to have it safe..
 
Old 09-07-2016, 10:08 AM   #4
Patric.F
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Been running photorec for 10minutes now and it has found a bunch of stuff already.
It's estimating it will take 30h.

Is there any way to get the file structure back? The name and hierarchy of the folders?
 
Old 09-07-2016, 11:02 AM   #5
Emerson
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I think it is summed up pretty good here.
 
Old 09-07-2016, 06:40 PM   #6
syg00
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Quote:
Originally Posted by Patric.F View Post
Is there any way to get the file structure back? The name and hierarchy of the folders?
Short answer - no. The very (meta-)data you need for that is what you smashed.
See the end of @Emerson's post - basic legwork from here on.
 
Old 09-07-2016, 10:25 PM   #7
rknichols
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Those instructions are for a damaged device with unreadable sectors. What you have is a partially overwritten device.

You restored the partition table, but did nothing to restore the filesystem.

Step 1: Use dd to make a full bit-for-bit copy of the 2TB drive. You may need this because the fsck step below has the potential to destroy all chance of recovery if it goes awry.

Step 2: Run testdisk on copy (or on the original drive if you really trust the copy), select "[Advanced] Filesystem Utils", and then "[Superblock]". Note the block number of the first backup super block that was found.

Step 3: Run "fsck.ext4 -y -b NUMBER" on the copy (or on the original -- same caveat as in Step 2), substituting the number found in Step 2. This is preferable to letting fsck.ext4 discover the backup super block on its own, since there is a small chance it could "discover" the wrong thing.

You should get something back. Some high-level directories will almost certainly be lost, but their subdirectories will show up in lost+found, complete with file names. And of course files in that first 500MB will be damaged or destroyed.
 
  


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