Make bootable SD card

How can I make a bootable SD card that doesn’t flash the eMMC? /opt/scripts/tools/eMMC/beaglebone-black-make-microSD-flasher-fromeMMC.sh writes a bootable image, but then it flashes the eMMC. What can I do to the image it creates to make it not flash?

Comment "#" out this line:

https://github.com/RobertCNelson/boot-scripts/blob/master/tools/eMMC/beaglebone-black-make-microSD-flasher-from-eMMC.sh#L317

Regards,