It looks like there are a few new versions since that one: https://github.com/axboe/fio/releases
If you want fio in your root image, update the fio.mk file in packages/fio to a later version (see the buildroot repo: https://github.com/buildroot/buildroot/tree/master/package/fio). If you don’t need fio, unselect it from “make menuconfig”.
