建议开个魔法

wget https://apt.devkitpro.org/install-devkitpro-pacman
chmod +x ./install-devkitpro-pacman
sudo ./install-devkitpro-pacman

（下面这句如果报错也没事）

sudo ln -s /proc/self/mounts /etc/mtab

往~.bashrc添加

export DEVKITPRO=/opt/devkitpro
export DEVKITARM=${DEVKITPRO}/devkitARM
export DEVKITPPC=${DEVKITPRO}/devkitPPC
export PATH="$DEVKITARM/bin:$DEVKITPRO/tools/bin:$PATH"

刷新一下

source ~/.bashrc

测一下

sudo dkp-pacman -S gp32-dev gp2x-dev gba-dev nds-dev 3ds-dev gamecube-dev wii-dev wiiu-dev switch-dev