Fatal Error No Cd Rom Found Mikrotik Full |verified|

The "FATAL ERROR: no CD-ROM found" in MikroTik typically occurs when the installer cannot find the installation media driver after the initial boot. This most often happens during x86 installations on physical hardware or virtual machines when the CD-ROM or USB drive is connected to an unsupported controller (like some SATA or eMMC interfaces). Top Solutions to Fix the Error "FATAL ERROR: no CD-ROM found" during installation

This error typically occurs when trying to install MikroTik RouterOS (x86) on physical hardware or a virtual machine (VM) because the installer cannot find the installation media (the ISO) after the initial boot phase. Why This Happens

The MikroTik installer boots into a basic environment from the ISO, but then it must "re-find" the CD-ROM or USB drive to pull the actual installation packages. If the storage controller (SATA/IDE) or the USB interface isn't recognized by the older RouterOS kernel, it triggers the FATAL ERROR: no cd-rom found message.

Solutions for Virtual Machines (Proxmox, VMware, VirtualBox)

If you are seeing this in a VM, the issue is almost always the virtual disk controller type.

Change Bus Type: Set your CD-ROM and Hard Disk to IDE instead of SATA, SCSI, or VirtIO. Older versions of RouterOS often lack the drivers for modern virtualized controllers during the install phase.

Check ISO Mounting: Ensure the ISO is mapped to the Primary Master or Secondary Master IDE slot.

Legacy Boot: Use BIOS (Legacy) boot mode instead of UEFI, as older x86 RouterOS versions are not UEFI-compatible. Solutions for Physical Hardware (x86)

Installing on a physical PC or server usually fails because of how the USB installer was created. fatal error no cd rom found mikrotik full

Use the Right Tool: Do not use "ISO to USB" tools like Rufus in ISO mode. Instead, use the MikroTik Netinstall tool (preferred) or use dd to write the image directly to the drive as a raw disk image.

BIOS Settings: Enter your BIOS and set the SATA mode to Legacy or IDE rather than AHCI/RAID.

USB 2.0 vs 3.0: Plug your installation thumb drive into a USB 2.0 port. The installer may lack drivers for newer USB 3.0/3.1 controllers. The Netinstall Alternative (Recommended)

If the ISO method continues to fail, use Netinstall, which is the official and most reliable way to install RouterOS:

Download the Netinstall executable and the Main Package (.npk) for your architecture from the MikroTik Downloads page.

Connect your PC directly to the device (or boot the VM via PXE). Set a static IP on your PC (e.g., 192.168.88.2).

In Netinstall, click Net booting, enable it, and set a client IP (e.g., 192.168.88.3).

Boot your device into "Etherboot" mode. The device will appear in the Netinstall list, allowing you to format and install without needing a CD-ROM. The "FATAL ERROR: no CD-ROM found" in MikroTik

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

The "FATAL ERROR: no CD-ROM found" error usually occurs during the installation of MikroTik RouterOS on x86 hardware when the installer cannot find a compatible IDE CD-ROM drive or when modern SATA/USB controllers are not recognized by older RouterOS kernels. Immediate Solutions "FATAL ERROR: no CD-ROM found" during installation

✅ Solution 4: Use a Physical CD-ROM (Obsolete but Works)

Burn the ISO to a CD-R and boot from a physical optical drive. This is rarely practical for modern servers but confirms the issue is indeed the absence of a CD-ROM.

Case Study: Successful Full Install on a Thin Client

Scenario: A user wants to install MikroTik RouterOS version 7.13 (full) on a Dell Wyse 3040 thin client (no CD-ROM, only USB ports).

Challenge: Every boot resulted in "fatal error no cd rom found mikrotik full."

Solution applied (Method 1 + Method 3 hybrid):

1. The user attempted Rufus DD mode – error persisted due to UEFI BIOS limitations.
2. Switched to Netinstall using a second laptop.
3. Connected the thin client via Ethernet to the laptop.
4. Used Netinstall to push the full npk package bundle.
5. Installation completed in 4 minutes. The thin client now runs as a full-featured router with wireless, BGP, and Docker support.

2. Root Causes

The error is almost exclusively caused by one of three scenarios:

1. Missing Storage Drivers (Most Common): MikroTik’s installation ISO is built on a lightweight Linux kernel. If the installer does not have drivers for the specific SATA, IDE, or SCSI controller on the motherboard (or the virtual controller in a VM), it cannot "see" the drive. Modern hardware often uses NVMe or advanced SATA modes (AHCI/RAID) that the older MikroTik kernel (v6 or early v7) may not recognize.
2. USB Port Compatibility: If installing via USB, the installer may fail to recognize the USB drive if it is plugged into a USB 3.0 (Blue) or USB 3.1 port. The MikroTik installer often lacks drivers for xHCI (USB 3.0) controllers.
3. Corrupted or Incompatible Media: The ISO file may be corrupted, or the burning process (writing to USB/CD) created a filesystem that the installer cannot mount.

Introduction

If you are reading this, you have likely encountered a frustrating wall during the installation of MikroTik RouterOS on a physical server or an older PC. You have burned the ISO, booted from the USB drive, and instead of seeing the familiar setup menu, you are greeted by a single, fatal line: ✅ Solution 4: Use a Physical CD-ROM (Obsolete

"Fatal Error: no cd rom found mikrotik full"

This error stops the boot process immediately. The machine refuses to proceed, locked in a loop of failed expectations. For many administrators, this message is confusing because you are not even using a CD-ROM.

This article provides the complete, definitive guide to understanding why this error occurs and the exact steps to fix it. We will cover the root cause (ATA/IDE drivers), legacy boot modes, and the ultimate alternative: installing the MikroTik Cloud Hosted Router (CHR) version on bare metal.

Scenario B: Installing on Virtual Machines (VMware, VirtualBox, Proxmox)

If you are attempting to install RouterOS as a virtual machine:

VMware Workstation / Player Solution:

1. Delete the existing CD/DVD drive from the VM settings.
2. Add a new CD/DVD drive.
3. Ensure the Virtual Device Node is set to IDE instead of SATA or SCSI.
4. Mount the ISO image.
5. Retry the installation.

VirtualBox Solution:

1. Go to VM Settings > Storage.
2. Under the Storage Tree, ensure the CD icon (Empty or ISO) is attached to the IDE Controller, not the SATA Controller.
3. If the VM uses only a SATA Controller, add an IDE controller explicitly.

Proxmox VE Solution:

1. When creating the CD/DVD drive, select the Bus/Device as IDE.
2. Do not use VirtIO or SCSI for the installation media. (You can switch the hard disk to VirtIO after installation for performance, but the boot media should be IDE).