It is in the compile options for that particular uboot, for example (pcm, dated Aug20)
@localhost pcm-uboot]$ strings u-boot.img |grep _target
boot_targets=mmc1 nvme0 usb0 mmc0 pxe dhcp
(mmc0=emmc,,mmc1=SD)
@WZ9V I have to wonder if that SD was bootable, if the nvme was disconnected or removed
would the same thing happen? (op, I know, old)
@localhost pcm-uboot]$ strings u-boot.img |grep _target
boot_targets=mmc1 nvme0 usb0 mmc0 pxe dhcp
(mmc0=emmc,,mmc1=SD)
@WZ9V I have to wonder if that SD was bootable, if the nvme was disconnected or removed
would the same thing happen? (op, I know, old)