> I did the very same recently when reformatting my system partition for a new > FS. Beware though that after this command you still need to create some device > files in /dev for udev to work properly, because they were excluded. I think > it was null and console, but I'm not sure.
You are correct: it's null and console. Also make sure that sys proc exist, otherwise the system probably won't boot properly. If you change your partitions it also maybe wise to reinstall the bootloader.