A chromebook is a computer, often a laptop, that runs the linux-based, non-free, web-browser centric Chrome operating system that is backed by Google corporation. This tag should be used for Ubuntu questions specific to Chromebook. ChromeOS is off-topic on this site, unless you are using it to install Ubuntu.
A list of official Chromebooks including documentation for developers is maintained at the chromium.org site.
Ubuntu and can be installed on ARM and x86 based Chromebooks through projects like:
- MrChromebox.Tech: A UEFI bootloader for x86_64 chromebooks. See this answer for more details.
- linux-mainline-on-arm-chromebooks : For ARM Chromebooks, see this answer, which utilizes the linux-mainline-on-arm-chromebooks project.
There are some Ubuntu Chroot environments for ChromeOS, but they are not official flavors of Ubuntu, and are off-topic on this site.
- crouton in a chroot environment on ChromeOS.
- chrx or ChrUbuntu by modifying the default ChromeOS partition layout and installing in a separate partition.
- N.B.: the ChrUbuntu author posted the following on October 15, 2013 about models of the old platform, kernels and booting:
Since I started ChrUbuntu back in December of 2010, it's always been necessary to utilize the Chrome OS Linux kernel with Ubuntu in order to solve some compatibility issues with the Chromebook architecture. That's changed with the Chromebook Pixel and the newer Haswell-based Chromebooks like the Acer C720 and HP Chromebook 14. Each of these models supports booting from a more traditional PC BIOS mode which makes it simple to use stock Ubuntu kernels on them.
- N.B.: the ChrUbuntu author posted the following on October 15, 2013 about models of the old platform, kernels and booting:
