When Download Image into SD card, "permission denied" is occured. How to solve it?

[Byungju]

Dear NXP,

To download image into SD card, I use Cygwin.

I checked the Sd card by "car /proc/partitions"

and I enter the command "dd if=/dev/zero of=/dev/sdb bs=512 count=1 && sync" to erase the sub-partition info on the SD card.

But Process for the command is failed with "Permission denied" message.

So I try to take out the SD card and insert it again and execute the command.

But the failure is same.

Could you please help let me know how to resolve it? 

Thanks and best regards,

[Daniel-Aguirre · Accepted solution]

Hi,

This is happening because Cygwin is not being executed with administrator level.

Before you run Cygwin, select the option of "Run as Administrator" and it should let you continue with the process.

Please, let us know.

[Byungju]

Thanks for your response.