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embedded linux/QNX – how to completely zero out flash

I have a bug related to persistent files.

To determine the exact sequence of steps to reproduce the bug, I need to start out the flash disk at a known state.

QUESTION

Using linux/QNX commands, how do I completely zero out the entire flash disk while being Telnet’d into the system?

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Answer

On QNX, you can try the flashctl tool to erase the entire flash.

To erase the entire flash, run:

flashctl -p /dev/fs0 -e
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