page provides an official repository for recovery images by board name. Manual Configuration Link Advanced users can find direct links in the official Google recovery configuration file by searching for "rammus". Common Use Cases Chrome Os Recovery Image File Download - Google Colab
If you cannot use the browser extension (e.g., you're on a limited terminal), you can manually fetch the URL. Google uses a predictable pattern.
# Replace /path/to/image.bin with your image file and /dev/sdX with your USB device sudo dd if=/path/to/image.bin of=/dev/sdX bs=4M status=progress conv=fsync