Removal of the USB storage drive when connecting via USB

elliottlyons · July 6, 2022, 3:52pm

I am newer to linux/debian and am using the Debian 10 image from beaglebone.com for the am3358 processor. When connecting via USB to the board once the board boots a mass storage device called “BeagleBone Getting Started” appears. I would like to remove this from appearing on my image when connecting via USB, however I still would like to maintain the ability I have to connect to the board and my LAMP stack using a USB wifi dongle in master mode, ethernet, modbustcp, and usb ssh. I know that this issue was on the previous forum board for an older version of debian so the solution posted there doesn’t work with the beagebone debian 10 image as the lines commented/replaced are different in the newer image. If you would like to help and need more information from me let me know. A solution to this would be greatly appreciated. Thank you!

RobertCNelson · July 6, 2022, 3:54pm

Hi @elliottlyons what is the exact version you are running?

cat /etc/dogtag

Over the last year with Bullseye, i rewrote how that section works to clean it up. So the directions can vary depending on your version…

Regards,

elliottlyons · July 6, 2022, 4:20pm

Hi Robert,

cat /etc/dogtag returns:
BeagleBoard.org Debian Buster IoT Image 2020-04-06

Thank you for your speedy reply!

RobertCNelson · July 6, 2022, 4:31pm

That’s under

/opt/scripts/boot/am335x_evm.sh

set: USB_IMAGE_FILE_DISABLED=yes in /etc/default/bb-boot and it should disable it…

github.com

RobertCNelson/boot-scripts/blob/master/boot/am335x_evm.sh#L545

      
        
            		echo "${log} g_multi Created"
            	else
            		echo "${log} FIXME: need to bring down g_multi first, before running a second time."
            	fi
            }
            
            
use_libcomposite () {
            	echo "${log} use_libcomposite"
            	unset has_img_file
            	if [ "x${USB_IMAGE_FILE_DISABLED}" = "xyes" ]; then
            		echo "${log} usb_image_file disabled by bb-boot config file."
            	elif [ -f ${usb_image_file} ] ; then
            		actual_image_file=$(readlink -f ${usb_image_file} || true)
            		if [ ! "x${actual_image_file}" = "x" ] ; then
            			if [ -f ${actual_image_file} ] ; then
            				has_img_file="true"
            				test_usb_image_file=$(echo ${actual_image_file} | grep .iso || true)
            				if [ ! "x${test_usb_image_file}" = "x" ] ; then
            					usb_ms_cdrom=1
            				fi
            			else

Regards,

dorovl · August 6, 2022, 9:59pm

As for Robert’s Debian 11.x (Bullseye) images which work just fine, I managed to do it like this:

mv /etc/bbb.io/templates/beaglebone-getting-started-2022-01-12.img /etc/bbb.io/templates/beaglebone-getting-started-2022-01-12.img.bak

Then eject the Windows drive (or unmount) from the host computer and reboot the device.

github.com

rcn-ee/repos/blob/master/bb-usb-gadgets/suite/bullseye/debian/bb-start-acm-ncm-rndis-old-gadget#L132

      
        
            		mkdir -p functions/ncm.usb0
            		if [ ! "x${USB1_HOST_ADDR}" = "x" ] ; then
            			echo ${USB1_HOST_ADDR} > functions/ncm.usb0/host_addr
            			echo ${USB1_DEV_ADDR} > functions/ncm.usb0/dev_addr
            		fi
            		ln -s functions/ncm.usb0 configs/c.1/
            
            
		mkdir -p functions/acm.usb0
            		ln -s functions/acm.usb0 configs/c.1/
            
            
		if [ -f /etc/bbb.io/templates/beaglebone-getting-started-2022-01-12.img ] ; then
            			echo "${log} enable USB mass_storage beaglebone-getting-started-2022-01-12.img"
            			mkdir -p functions/mass_storage.usb0
            			echo ${usb_ms_stall} > functions/mass_storage.usb0/stall
            			echo ${usb_ms_cdrom} > functions/mass_storage.usb0/lun.0/cdrom
            			echo ${usb_ms_nofua} > functions/mass_storage.usb0/lun.0/nofua
            			echo ${usb_ms_removable} > functions/mass_storage.usb0/lun.0/removable
            			echo ${usb_ms_ro} > functions/mass_storage.usb0/lun.0/ro
            			echo /etc/bbb.io/templates/beaglebone-getting-started-2022-01-12.img > functions/mass_storage.usb0/lun.0/file
            
            
			ln -s functions/mass_storage.usb0 configs/c.1/

Regards,

Vlad