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If you’ve landed here, you’re likely staring at a Chromebook that won’t boot, showing the dreaded “Chrome OS is missing or damaged” yellow screen, or you’re a developer looking to do a fresh install on a device codenamed Rammus .

(Note: You usually need a tool like curl to fetch the direct link, but for a blog post, here is the logic) Go to: https://dl.google.com/dl/edgedl/chromeos/recovery/recovery.conf

Search this text file for rammus . You will see a line like: name=rammus url=https://dl.google.com/dl/edgedl/chromeos/recovery/chromeos_XXXXX_rammus_recovery_stable-channel_mp.bin

If your Rammus Chromebook is stuck, don't throw it away. Ten minutes with a USB drive is usually all it takes to bring it back to life.

Here is everything you need to know about downloading the correct Recovery Image for Rammus and getting your machine back to a pristine state. In the Chromebook world, manufacturers don't use commercial names (like "Lenovo 100e") in the operating system code. Instead, they use board codenames. If your Chromebook has an AMD A4 or A6 processor and is a rugged education model, it is almost certainly a Rammus .

is the board name for several AMD-based Chromebooks, most notably the Lenovo 100e (2nd Gen) and the Lenovo 300e (2nd Gen) AMD models.