Installing

You can install GalliumOS in two different ways:

• From USB or SD media, downloaded from https://ci.galliumos.org/builds
• From the commmand line on a ChromeOS virtual terminal, via chrx

Both methods require Developer Mode enabled on your ChromeOS device.

TODO: flesh this out! Depending on your Chromebook model, you might need to flash your firmware to enable Legacy Boot. ROMs and instructions at https://johnlewis.ie/custom-chromebook-firmware/rom-download/.

From USB or SD media

Installing from USB or SD media allows you to use your entire SSD for GalliumOS.

1. Enable Developer Mode
2. Reboot Chromebook and press CTRL+L at the white "OS verification is OFF" screen
3. Download the newest ISO from https://ci.galliumos.org/builds
4. Write ISO to your removable USB or SD media
5. Insert USB or SD media into Chromebook
6. Follow GalliumOS installer

From the command line

Installing from the command line via chrx will give you a dual-boot machine, GalliumOS and ChromeOS. Note that chrx only works with certain Chromebook models, so be sure to review the hardware compatibility list on the chrx site.

1. Enable Developer Mode
2. Reboot Chromebook and press CTRL+D at the white "OS verification is OFF" screen
3. Configure Wi-Fi if necessary
4. Press CTRL+ALT+F2 to get a virtual terminal, then log in as user chronos with no password
5. Run chrx with curl -O https://chrx.org/go && sh go -d galliumos (see https://chrx.org/ for more options)
6. Follow on-screen instructions to repartition your SSD and to install GalliumOS