I installed busybox on the USB drive, however, I cannot find an option to install it on the pre-installed SATA drive on the morello board. Please let me know the process.
Sorry for the delay.
I am a bit unsure what you are trying to do.
If you want a boot for a USB MSD when booting you will see a (on both the HDMI and AP uart)
Press ESCAPE for boot options
If you press ESC then you cna select you USB MSD in Boot Manager.The USB-B connector ("DBG USB") is only to debug and access the board internal UARTs. You can not send a boot image over the DBG USB.Best regards,Patrik