2019-05-30, 19:27
Ok. Just to be absolutely clear about what I'm describing, after booting to ChromeOS on this device, when I hit ctrl-alt-F3 to get to a tty, I'm presented with the Developer Console log-in screen, where I can log in as user chronos. Among other information appearing on that log-in screen, it says "If you are having trouble booting s self-signed kernel, you may need to enable USB booting. To do so, run the following as root: enable_dev_usb_boot." Though I'm not trying to run a self-signed kernel, this information gives the impression that booting from a USB device can be enabled by the means described. So, is what you're saying about enabling legacy boot still applicable here? You obviously have a far better technical grasp of the workings of these devices than I do, but to the more casual user such as myself, the information from the developer console screen seems to indicate that booting from USB can be enabled by logging in as chronos and running something like sudo enable_dev_usb_boot.
