Based on 5ilver's charmbian script, but modified to install Ubuntu focal instead.

For best results, use tasksel to install mate desktop.

What works:

• WiFi configured using nmcli
• Touchpad
• Lots of other stuff

What doesn't work:

• Sound
• Probably a bunch of other stuff I haven't investigated
• Brightness control on keyboard hotkeys (it works with the slider in the GUI)

to do:

• Choice to install Ubuntu with Mate or Debian with Fluxbox
• Incorporate archbk script to automate install from ChromeOS -> Arch USB -> Ubuntu/Debian on internal storage including set up user account
• Get sound working (maybe using alsa dotfiles from ChromeOS itself)
• Try to incorporate the GalliumOS Touchpad driver

FEEL FREE TO USE THIS FOR WHATEVER YOU LIKE. LET ME KNOW IF YOU KNOW HOW TO FIX SOUND.

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ORIGINAL README BELOW

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charmbian

Debian Buster install script for samsung arm chromebooks. Designed to be run ON the target device from an arch boot stick created from https://archlinuxarm.org/platforms/armv7/samsung/samsung-chromebook-2. Copy charbian.sh to partition 2 when creating the stick, or get it some other way after you've booted into the usb environment. You will need to use CTRL+u at the dev mode screen, and you cannot boot from the blue usb3 port.

To run, just 'bash charmbian.sh', then select your wifi, enter the target device path (/dev/mmcblk0 for internal emmc), and hurry up and wait.

The magic

The magic part is just a honking debootstrap command to build a usable debian root from upstream sources using the arch kernel and modules to get you off of google's udders. It then does a few useful tweaks to make the system usable on first boot.

But what does it dooooooo?

• Partitions your device
• Copies arch kernel and modules
• Grabs debootstrap
• Debootstraps a debian system
• Puts a nice trackpad config in place (broken, but it's a really nice config)
• Disables DPMS in xorg (broken)
• Sleep hacks in ACPI to disable KB/mouse wake when lid is closed
• Sets up a WPA wifi connection with wpa_passphrase(broken)
• Boots to a minimal fluxbox graphical env