Perhaps a reminder to emerge lvm2 or lvm-user would be in order in section 10.c in the installation handbook. I often forget to install it, and have to boot into the livecd to fix. Just a thought =p Reproducible: Always Steps to Reproduce: 1. 2. 3.
There's a bit more than just emerging lvm2 and such. All this is covered in the add-on guide http://www.gentoo.org/doc/en/lvm2.xml