Debian wiki has a section named “Debian On” where users can describe how to install Debian on any hardware. And there are several pages about Chromebooks.
It is great idea but how it is done is far from being great. People just copy pasted one of pages and did some adaptations leaving rest untouched.
So you can read “Do not play with ALSA mixer – you may fry your speakers!” warning which was valid on Samsung ARM Chromebook in 2012 but was quickly fixed by ChromeOS update.
Some of those pages link to my blog so people often ask me about installing Debian on Any Random Chromebook Model when I have only one – Samsung ARM Chromebook from 2012 year. And do not use it with Debian. I do not use it at all. Maybe will start again one day but it is just maybe.
So people: if you have issues with installing Debian/Fedora/Ubuntu/whatever-other-than-ChromeOS on your Chromebook then go to IRC, find your distribution channel and ask. Better chances for good answer than when you ask me.