The Raspberry Pi 5 will not boot from: sys-kernel/raspberrypi-sources 20230405 sys-boot/raspberrypi-firmware 20230106 sys-kernel/raspberrypi-image 20230405 It looks like the minimum stable release of these packages with Raspberry Pi 5 support is 20240306 which is available upstream but not a currently available ebuild version. Anyone attempting to boot a Pi 5 with an older kernel / firmware combination will get an error about bcm2712-* not being found at boot time and the system will halt. I found this out the hard way. I'll update the https://wiki.gentoo.org/wiki/How_to_install_Gentoo_on_Raspberry_Pi_5 so this is documented.