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JWNWSA
Asked: 2018-10-15 04:46:19 +0800 CST

Using f3write to determine USB Drive size: specific syntax

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I have installed f3 (fight flash fraud) on my Ubuntu 18.04.1 in order to test my USB stick purchases from the command line. My newest Kingston 16GB successfully passed the f3probe test and for practice I want to run f3write and f3read also, but I'm seeing some oddities and have terminated the tests.

The stick is mounted and Files app identifies it as /media/jw/2177-E385 so I have attempted to run the command variously as

  1. sudo f3write /media/jw
  2. sudo f3write /media/jw/
  3. sudo f3write /media/jw/2177-E385.

Which is the mount point that I need for this operation? The partition is located at /dev/sdd1.

I am seeing some 1.h2w, 2.h2w, etc., written into the /media/jw directory in files, but not into 2177-E385.

What concerns me the most is that, when running f3write, the command line shows 908GB free space, the size of my hard drive, not 16GB, the size of my USB stick; I don't want to test the computer's hard drive.

I would appreciate some assistance with the syntax in order to let me know where I'm going wrong.

mount usb hardware-test

1 Answers

  1. Best Answer

    If the stick is mounted as /media/jw/2177-E385 then that folder is the one you need to supply to f3write. So:

    sudo f3write /media/jw/2177-E385/

    is the correct command.

    You can delete all the other h2w files.

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