I tried with jfs and ext4, but I didn't get this message. Reproducible: Always Steps to Reproduce: 0.Create a USB live disk of the Fedora 33 xfce flavour and boot the system. 1.Formatting a disk with xfs 2.Follow the handbook to the section Installing the Gentoo base system and change root. 3.Run emerge --sync dmesg: https://drive.google.com/file/d/1kGMlBqYDyBkqR2gEhG5gP7HPKSWe4Lvu/view?usp=sharing
*** This bug has been marked as a duplicate of bug 755083 ***
Itβs a warning you should safely ignore.