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I had once found a fast method to backup device partitions to a computer using adb and pv (provided by a TWRP temporary boot image). pv ran on the Android device and was called using adb, specifically, I think, using adb exec-out. cat might have been involved. dd was not used, I'm 85% sure of that, because I need/needed to see the copy progress.

I am unable to find it now. What was it?

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  • Isn't pv a tool uses for monitoring progress, how can you backup a partition using that tool? Also if you intend to pipe the data from Android to the host PC using adb shell you will recognize that this will change the transferred data (net lines). Better use adb exec-out.
    – Robert
    May 27 at 16:16
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    See "CREATING PARTITION DUMP" heading in this answer: android.stackexchange.com/a/208114/218526 May 27 at 16:29
  • @Robert "Monitoring progress" is vague. I've mostly seen pv $A $B to copy one partition to another or to a file while displaying the operation's progress, which I need to see to know that a copy operation hasn't stalled. I probably did use adb exec-out instead of adb shell.
    – Melab
    May 27 at 18:13
  • @IrfanLatif Your linked answer uses dd which is inefficient and does not display the progress.
    – Melab
    May 27 at 18:17
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    @Melab I've just counted. I described 7 methods there to create a partition dump. Seems like you are in a hurry. So what you can do is open the linked answer, press Ctrl + F in your browser, and type " pv " without quotation marks. The search results will quickly lead you to 2 commands in which I've used pv. None of the both uses dd. // Btw I hope you are aware of dd status=progress .... If not, please read here. Also see pv to correct your understanding of how it works. May 27 at 20:57

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