You hear everyone talking about wanting Ubuntu on their Chromebook. I'm looking to install the Ubuntu server and completely remove ChromeOS. Is this possible? If so how?
I would try keeping Chrome OS because this will avoid having to configure the hardware if you remove it. Then install your preferred Ubuntu flavor via Crouton.
View targets or desktop environments:
sh ~/Downloads/crouton -t help
View available releases (I believe 'help' also works.):
sh ~/Downloads/crouton -r list
Then I would just install the needed server packages. How to make a home server using Ubuntu desktop?
You may want to choose to install CLI only and build from there:
(The crouton page is full of beneficial info.)
You will want to keep the laptop from sleeping. This may be problematic.
It looks like eliminating Chrome OS and just installing Ubuntu is involved and possibly risky.
(If it doesn't work out, you may want to just spend $70 on a Raspberry Pi instead to use as a server.)
I hope it works out!