Hi Robert,
I guess it may be not easy thing to do. The raw usb flash drive is instantiated ( as rootfs). The device /dev/[sdb] is for u-boot and /dev/[sdb1] is rootfs partition, I believe. But
- the BalenaEtcher only selects rootfs (currently). There is no option for
/dev/sdb ? - How to import image files [MLO and u-boot.img] into BalenaEtcher?
Or is there a way to combine and convert image format for Etcher?
Best Regards,
David