If you want, specify whether this is physical hardware or a VM and your RouterOS ISO filename; I’ll produce tailored, step‑by‑step commands (e.g., dd/Rufus settings, BIOS toggles, or VM controller settings).
For VirtualBox, VMware, or KVM:
This error halts the boot process and prevents the installation from proceeding. Below is a breakdown of why this occurs, when it happens, and how to resolve it. fatal error no cd rom found mikrotik full