windows下安装ubuntu
可能需要注意secure boot 等问题
参考资料：
https://www.tecmint.com/install-ubuntu-16-04-alongside-with-windows-10-or-8-in-dual-boot/
https://medium.com/@RotekSong/tutorial-how-to-install-ubuntu-16-04-windows10-on-alienware-15-r3-91cd1dc7eb3c
原文链接：https://www.f2er.com/ubuntu/351772.html