The installer often expects a legacy IDE interface. If your BIOS is set to AHCI mode for SATA controllers, the installer may fail to "see" the optical drive or the USB emulation.
The Netinstall executable and the RouterOS .npk main package downloaded from the MikroTik website. Step-by-Step Execution
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
Connect your MikroTik machine directly to your computer using an Ethernet cable. fatal error no cd rom found mikrotik full
This error can be particularly confusing because it doesn't differentiate between installation media types—it simply reports a missing CD-ROM device.
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:
A poorly flashed USB drive or a corrupted ISO download can cause the installer scripts to lose track of the source files mid-boot. Step-by-Step Solutions The installer often expects a legacy IDE interface
If you are continuously failing with the "No CD-ROM found" error, switching to the method is the best solution. Netinstall ignores the need for a physical or virtual optical drive, booting the router over the network (PXE) to install the system image directly onto the storage drive. Steps for Netinstall: Download Netinstall for Windows/Linux.
Change the setting from or RAID to IDE , Compatibility , or Legacy mode.
In Netinstall, click and assign a client IP (192.168.88.3). Step-by-Step Execution This public link is valid for
If the CD-ROM error persists regardless of what you do—especially on modern hardware or complex setups—bypass the CD installation entirely. Use .
Which (v6 or v7) are you attempting to install?
If you are trying to install the "full" version, the official, error-proof method is . This bypasses the CD-ROM requirement entirely.