In productionProbeginnerFirmware mode

The installer boots in legacy mode

Restart installation in a mode compatible with the existing Windows boot manager.

Pairs with UEFI, Secure Boot, and installation media in Robotics Development Setup & Recovery. Read the concept first, then diagnose it here.

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Operator report

The installer cannot locate an EFI system partition although Windows reports UEFI mode.

Ubuntu 24.04 setup emulator, isolated disk images, Linux recovery shell, ROS 2 Jazzy

System boundary

Trace only the relevant path.

firmware boot menuinstaller boot modeEFI system partition

How this lab works

You diagnose it — no command list.

Open the repair workspace and gather your own evidence in a real terminal. No diagnostic commands are handed to you — finding the fault is the exercise. Stuck? Progressive hints unlock inside the workspace.

Verification

Your repair must pass more than the visible symptom.

Installer reports UEFI
Existing EFI partition is detected
Hidden regression behavior
Root cause explanation