Debian has a script to create floppy disks containing memtest86+ kernel. I have modified it to use variables instead of hardcoded paths and adapted it to gentoo. See the attachment. Also, there is a short manpage available in debian's diff.gz at http://packages.debian.org/source/etch/memtest86+ Reproducible: Always Steps to Reproduce:
Created attachment 176754 [details] memtest floppy maker, written in bash
Added to CVS, thanks for porting the script to Gentoo.