[TOOL][LINUX] mmcblk0 Extractor (v1.0.1 - 3/16/16) - Android

Disclaimer: I am not responsible for anything bad that may occur from the use of this tool, but I will take all the credit you can give me if it works for you
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This tool in intended to extract the full disk image from your Android device (mmcblk0). Once extracted, it allows you to open the image in testdisk to extract individual partitions.
Source
Commits/Changes
XDA:DevDB Information
mmcblk0 Extractor, Tool/Utility for the Chef Central
Contributors
SuperR.
Version Information
Status: Stable
Created 2016-02-02
Last Updated 2016-03-16

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Usage:
In your terminal, type the following where "/home/user/extractor/" is the directory where the tool lives:
Code:
cd /home/user/extractor/
./extract
NOTE: the above code is 2 separate commands and requires ENTER to be pressed after each command
OR
Double-click the extract file and choose "Run in Terminal" if your OS supports it.

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reserved2

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Awesome.
Testing it

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I'm not sure mmcblk0 is a full disk image. And once you have it, what do you do with it?

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jayvl said:
I'm not sure mmcblk0 is a full disk image. And once you have it, what do you do with it?
Click to expand...
Click to collapse
I am sure. And the OP says what you can do with it.

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SuperR. said:
I am sure. And the OP says what you can do with it.
Click to expand...
Click to collapse
What about hidden sectors? the partition table? i.e. stuff that is not inside the supervolume but still occupies NAND memory? For example using MTK droid tools, or just browsing an OEM firmware folder, I can see more data than that listed in the mmcnlk0 partitions.

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jayvl said:
What about hidden sectors? the partition table? i.e. stuff that is not inside the supervolume but still occupies NAND memory? For example using MTK droid tools, or just browsing an OEM firmware folder, I can see more data than that listed in the mmcnlk0 partitions.
Click to expand...
Click to collapse
This tool does exactly what it says. Nothing more, nothing less. If it is useful for you feel free to use it. If not I won't have hurt feelings

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My point is that mmcblk0 is not the same as a "full disk image" because it does not include every sector on the NAND. So it does not do exactly what it says.

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jayvl said:
My point is that mmcblk0 is not the same as a "full disk image" because it does not include every sector on the NAND. So it does not do exactly what it says.
Click to expand...
Click to collapse
Ok, you win

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So this will work exactly how?
It dd the partition to internal storage? Then pulls the file from storage. Little confused. If so you might want to add that you'll need a x.xxGB space
The tool looks interesting though

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LastStandingDroid said:
So this will work exactly how?
It dd the partition to internal storage? Then pulls the file from storage.
Click to expand...
Click to collapse
Correct. The point was to get aboot, boot, modems, system, recovery ect.. All in one pull.
Sent from my N9515 using Tapatalk

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LastStandingDroid said:
So this will work exactly how?
It dd the partition to internal storage? Then pulls the file from storage. Little confused. If so you might want to add that you'll need a x.xxGB space
The tool looks interesting though
Click to expand...
Click to collapse
In addition to what @bcrichster said, if you choose the custom recovery booted option it does not pull to sdcard first. It adb pulls directly from device to pc. If you choose the Android booted option, it uses dd to sdcard, then adb pull to pc.
edit: Just pushed an update adding info about space requirements to the Android booted option

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Thank you @SuperR. your contribution is appreciated as always man

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Extra help pls.
I downloaded your zip, and on unzipping, found 2 files and 3 directories.
06/03/2016 01:17 PM <DIR> .
06/03/2016 01:17 PM <DIR> ..
03/16/2016 03:51 PM 5,239 extract
03/16/2016 03:52 PM 496 README.md
06/03/2016 01:17 PM <DIR> tools
2 File(s) 5,735 bytes
3 Dir(s) 115,831,672,832 bytes free
I cannot execute the ./extract command that you instructed. I am running Window7. Please give me a pointer, thanks.

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forever_naive said:
I downloaded your zip, and on unzipping, found 2 files and 3 directories.
06/03/2016 01:17 PM <DIR> .
06/03/2016 01:17 PM <DIR> ..
03/16/2016 03:51 PM 5,239 extract
03/16/2016 03:52 PM 496 README.md
06/03/2016 01:17 PM <DIR> tools
2 File(s) 5,735 bytes
3 Dir(s) 115,831,672,832 bytes free
I cannot execute the ./extract command that you instructed. I am running Window7. Please give me a pointer, thanks.
Click to expand...
Click to collapse
I think you missed the [LINUX] in the thread title.....

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forever_naive said:
I downloaded your zip, and on unzipping, found 2 files and 3 directories.
06/03/2016 01:17 PM <DIR> .
06/03/2016 01:17 PM <DIR> ..
03/16/2016 03:51 PM 5,239 extract
03/16/2016 03:52 PM 496 README.md
06/03/2016 01:17 PM <DIR> tools
2 File(s) 5,735 bytes
3 Dir(s) 115,831,672,832 bytes free
I cannot execute the ./extract command that you instructed. I am running Window7. Please give me a pointer, thanks.
Click to expand...
Click to collapse
In Windows a .exe extension stands for executable (code is hard coded into the binary). That's why you can just double click on windows os and a .exe will self execute (also why you get tons of viruses if you don't know what your doing ).
In Linux os when you put a ./ in front of shell script or binary and depending if it already has the correct permissions coded in or it's intended for the end user to do this you chmod a+x (0755-77) and that's basically the equivalent of being on windows and double clicking a .exe

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@SuperR.
Wait a second...
This is in your sources:
Code:
$adb shell su -C "dd if=/dev/block/mmcblk0 of=/sdcard/mmcblk0.img bs=64k"
Think about this for a second. If you have a 32GB device, and /sdcard is on the INTERNAL STORAGE, than how do you put a 32GB file on a 32GB device that's not empty? You're going to run out of storage, right? Am I just crazy or what?

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Lightn1ng said:
@SuperR.
Wait a second...
This is in your sources:
Code:
$adb shell su -C "dd if=/dev/block/mmcblk0 of=/sdcard/mmcblk0.img bs=64k"
Think about this for a second. If you have a 32GB device, and /sdcard is on the INTERNAL STORAGE, than how do you put a 32GB file on a 32GB device that's not empty? You're going to run out of storage, right? Am I just crazy or what?
Click to expand...
Click to collapse
There is a warning to be sure you have enough space. Alternatively you can use the custom recovery option and transfer the data directly to your pc bypassing the space requirements on your device.

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SuperR. said:
There is a warning to be sure you have enough space. Alternatively you can use the custom recovery option and transfer the data directly to your pc bypassing the space requirements on your device.
Click to expand...
Click to collapse
Is mmcblk0 the same size as the device storage? (e.g. a 16gb phone would have a 16gb mmcblk0.img)?