mkdir -p sophgo
cd sophgo/
git clone https://github.com/sophgo/linux-riscv
cd linux-riscv/
make ARCH=riscv sophgo_mango_ubuntu_defconfig
scripts/config --disable DEBUG_INFO
make menuconfig
make -j$(nproc) deb-pkg
cd ../
sudo dpkg -i linux-headers-*_riscv64.deb linux-image-*_riscv64.deb linux-libc-dev_*_riscv64.deb 
mkdir -p /boot/dtb/debian/
sudo cp -p /usr/lib/linux-image-6.1.61-0fyi+/sophgo/mango-milkv-pioneer.dtb /boot/dtb/debian/

vim /boot/extlinux/extlinux.conf

label debian
        menu label Debian
        linux /vmlinuz-6.1.61-0fyi+
        initrd /initrd.img-6.1.61-0fyi+
        fdt /dtb/debian/mango-milkv-pioneer.dtb
        append console=ttyS0,115200 root=/dev/nvme0n1p5 rootfstype=ext4  rootwait rw earlycon selinux=0 LANG=en_US.UTF-8