On 2018-01-31, Scott wrote:
> but would like to user installer via SD-card-image
> Are the Stretch u-boot images based off v2017.05
Stretch is based off of u-boot 2016.11, the upstream version available
at the time stretch froze.
I don't see any mention of utilite models in upstream u-boot, so it's
not possible to provide pre-built bootable debian-installer images.
If you have a vendor-provided u-boot, you might be able to get it to
work with the debian-installer images, possibly manually loading the
kernel+initrd+dtb from the u-boot prompt and booting. You'll likely need
a serial console connected to troubleshoot.