Okay, I uninstalled and re-installed uboot-pr13. Then it boots from sdcard again. But when I want to switch to maemo, and give the command "run noloboot", then it just seems to switch itself off. If I remove the sdcard, it boots into maemo. As far as I can tell, noloboot is pointing to multiboot which doesn't exist anymore because I uninstalled it. Not sure how to fix that, but that's a separate issue. So, anyway, all this excitement is just due to something weird with my setup and nothing to do with Nemo. Since it started after a bad shutdown of Nemo, I thought it might be some kind of bug others had run into. But it's not. So nothing to do with this thread. Sorry for the derail.