pixelbook, chromeos, developer mode, crouton developer mode https://www.theverge.com/2017/11/16/16656420/google-pixelbook-chromebook-development-linux-crouton-how-to hold the Esc, Refresh, and power button for a little while and the laptop reboots into Recovery Mode. Once you’re there, you hit Ctrl-D to boot into Developer Mode. 同时按esc refresh, poeer button, 直到出现 recovery mode, 就是提示插入u盘的界面, 这个时候按c