via rvspace.org,
see ./build.sh:
cp arch/riscv/configs/starfive_visionfive2_defconfig .config
make ARCH=riscv olddefconfig
make ARCH=riscv -j$(nproc) bindeb-pkgAfter building, there will be .deb-packages in the parent directory.
Install them, e.g., with
dpkg -i *.deb
Change the boot default via sudo nano /boot/extlinux/extlinux.conf to boot the new kernel, e.g., l1.
Reboot and pray (sudo shutdown -r now).