The UEFI Partitioning section mentions to create /dev/sda1. However, the remainder of the book does not mention how and where it is used (e.g. how to format and where, when and how to mount). This leads to confusion when installing rub2.
please add the note directly in the wiki see: https://wiki.gentoo.org/wiki/Handbook:Main_Page#How_do_I_improve_the_Handbook.3F