Aha, I got some time to try it out and understand it better now. I didn’t realise that the Easy Installer is basically a pre-loaded image, and after installing an image the installer is not accessable anymore.
Yes, that is exactly how it is supposed to work.
- Other than the image install, the u-boot system is basically the same as with legacy images, so I can load new kernels and device-tree files from the u-boot prompt (for instance over ethernet/tftp) as before?
More or less yes. However please note that the Toradex Easy Installer U-Boot uses a slightly different configuration and e.g. does not support any none-volatile U-Boot environment.
- Do I have to use recovery-mode to re-download the easy installer to access it?
Would be nice if the image was kept and was accessible from u-boot for instance, so upgrades can be achieved without access to the USB OTG-port.
I guess that would require a full blown update system however the Toradex Easy Installer is just a humble initial installer which was developer mainly to improve the out-of-the-box experience.