ChromeOS Recovery Media
Creating a ChromeOS Recovery Disk
In order to create a ChromeOS Recovery Disk, you will need a 8 GB USB Flash Drive, a larger flash drive may be used if you are unable to locate a 8 GB flash drive, alternitively a MicroSD card may be used if your device has a MicroSD card reader.
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Google publishes a Command-line-based (CLI) tool to create a ChromeOS recovery disks with a few simple commands. This tool will only work on machines running a native GNU-Linux build and is not designed to be used within a containerized Linux Instance such as Chrome OS's Linux Environment (Crostini) or on systems such as the Windows Subsystem For Linux (WSL/WSL). As this tool relies on block-level storage functions, specifically dd, it requires an account that can run elevated commands via sudo.
You will also need to ensure that the "wget" and "unzip" packages are installed on your machine via your distribution's package manager or accessible in your PATH if you install them via a binary.
wget -O linux_recovery.sh https://dl.google.com/dl/edgedl/chromeos/recovery/linux_recovery.sh
chmod +x linux_recovery.sh
./linux_recovery.sh
You will need to know the board name of your ChromeOS device to build the correct image. You can easily find this by locating your ChromeOS Device Model on The ChromeOS Guide Device Index and locating the "board" name under the Hardware Specifics section of the product page.
Clearing Your USB Flash Drive
Once a USB Flash Drive has been setup as a ChromeOS Recovery Disk, it cannot be used to store other forms of data unless you properly erase your USB Flash Drive, this section of the instructions will provide the steps to allow you to use your ChromeOS Recovery Disk as a standard flash drive.
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