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Chapter 7 on a real Ubuntu 24.04 workstation with a real IPMI 2.0 controller owning a real virtual machine: what a serial console carries and why it survives the loss of the host network, ruling out a hardware fault before touching the console, the single-session payload and how to reclaim one that is held, capturing a whole boot to a file with script(1) and converting it to readable text, reading the firmware handoff, the kernel banner and the userspace phase out of a capture, the one line that explains a host with no network, the console parameters this firmware does not implement, the vendor escape sequences, and a written diagnosis supported by the capture.