[OT] Testing an SD card

[Volker Wysk]

Hi!

Am Mittwoch, 17. August 2016, 13:43:14 CEST schrieb Charles T. Bell:
> On 08/17/2016 11:27 AM, Volker Wysk wrote:
> > I have an SD card for my smartphone which I suspect to be defect. Is there
> > a command to test this? (I can copy it with dd to a file, so far it
> > works.)
> 
> I would recommend F3 to check the SD for defects and size verification.
> You can install using APT-GET or it may be available in the Muon
> repository.  Keep in mind that the f3write will erase anything and
> everything on the SD card.  The other utility is f3read, use the man
> pages to work out how to use it effectively for your purposes.

I've tried f3write and f3read. Nothing was erased. Rather, the free space has 
been filled up with dummy files (random numbers). So, only the unused part of 
the SD-Card has been tested.

Both commands have not revealed any defects.

Bye
Volker