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Connecting the PC and Router through a dumb switch helps maintain the link state during reboots. Phase 2: Hardware Level Fixes

What (motherboard or drive type) are you deploying this on?

This error usually occurs when the MikroTik installer, booting from a USB drive or virtual CD, fails to identify the source media as a valid CD-ROM, halting the installation. This guide provides a comprehensive overview of why this happens and how to resolve it permanently. What Causes "Fatal Error No CD-ROM Found" in MikroTik?

Advanced users can unpack the ISO, modify the init script that checks for /dev/cdrom , and repack it.

Boot your server using Ubuntu Live (Try Ubuntu). Do not install Ubuntu.

The "Fatal Error: No CD-ROM found" is a critical error message that appears on the console or terminal of a MikroTik device, indicating that the device is unable to detect a CD-ROM drive. This error typically occurs during the boot process or when attempting to install or upgrade the device's operating system. The error message may seem perplexing, as modern MikroTik devices rarely come with a CD-ROM drive.

If you are committed to using physical media, consider these steps reported by users: "FATAL ERROR: no CD-ROM found" during installation

Are you attempting this installation on or a virtualization platform like Proxmox or VMware?

The installer lacks native drivers for certain SATA controllers or USB chipsets.

Installing or reinstalling MikroTik RouterOS on x86 hardware, virtual machines, or legacy RouterBOARDs can occasionally trigger a frustrating halt in the boot process. The system stops completely and displays a blunt message:

Re-add the CD-ROM drive, point it to your RouterOS ISO, and assign it to . For Proxmox VE: Go to the VM's Hardware tab.

Consider using a different computer system. Some motherboards have better compatibility with RouterOS than others.

Give you a guide on how to to connect to your new router.

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