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
Solutions for Virtual Machines (Proxmox, VMware, VirtualBox)
Save the changes and reboot. The installer should now detect your drives.
The "Fatal Error No CD-ROM found" error in MikroTik is almost entirely related to compatibility issues between modern hardware and the older installer boot mechanism. By switching to or ensuring Legacy BIOS and IDE modes are configured, you can solve this issue quickly. If you are still having trouble, consider: fatal error no cd rom found mikrotik full
Use tools like Rufus to burn the ISO file. Ensure the partition scheme is set to MBR and the target system is BIOS (or UEFI-CSM) .
To completely resolve the issue, you must bypass the legacy optical media layer using one of the primary alternatives outlined below.
Connect the target computer via Ethernet directly to your computer. This error typically occurs when trying to install
The installer lacks native drivers for certain SATA controllers or USB chipsets.
The MikroTik RouterOS Netinstall and ISO installer environments run on a minimal Linux kernel. This installer relies on specific, older hardware emulation standards to recognize storage drives. The error typically triggers due to three main factors:
Run Netinstall as an Administrator, click , check the box to enable it, and enter a client IP address in the same subnet (e.g., 192.168.88.3 ). The "Fatal Error No CD-ROM found" error in
: Reboot the machine, enter the boot menu ( F12 ), and select Network Boot / PXE Boot . Step 5: Install RouterOS
When creating the VM, select "Other Linux 3.x kernel" or similar to ensure legacy compatibility. The Ultimate Solution: Using MikroTik Netinstall
You are using a USB drive to install an ISO that expects a physical CD/DVD drive.