It sounds like Lenovo's BIOS is using a RAID mode with the internal SSD that Linux does not understand. Lenovo apparently provides a driver for this RAID mode for Windows 10. If you want to install something else (Linux, Windows 8) you are out of luck until someone produces a driver for that operating system.
[2] http://www.theverge.com/2016/1/16/10780876/microsoft-windows...