There are several reasons why setups can run into the error “No device with valid ISO found” in Proxmox. Here, we’ll look into some of them, along with its fixes. Bobcares, as a part of our Proxmox Support offers solutions to every query that comes our way.

Overview

1. Why “No device with valid ISO found” in Proxmox?
2. Causes & Fixes

Why “No device with valid ISO found” in Proxmox?

The error “No device with valid ISO found” during Proxmox setups can be caused by several issues. Here are the common causes and how to fix them:

Causes & Fixes

1. Incorrect USB Drive Preparation

Cause: The ISO file isn’t correctly written to the USB drive.

Fix: Use tools like Rufus or Etcher to properly format the USB and write the ISO file.

2. Ventoy Issues

Cause: Ventoy may not support certain ISO files.

Fix: Use Rufus instead of Ventoy, as it directly writes the ISO to the USB drive and is often more reliable for Proxmox installations.

3. USB Drive Not Detected

Cause: The system may not detect the USB during setup.

Fix: Unplug and replug the USB drive during the ISO detection phase.

4. Grub Configuration

Cause: Incorrect Grub settings can prevent USB recognition.

Fix: Edit the boot options by adding module_blacklist=radeonfb to the Linux line during installation.

5. ISO File Corruption

Cause: The ISO file may be corrupted.

Fix: Re-download the ISO and verify its integrity using a tool like md5sum.

6. System BIOS Settings

Cause: BIOS settings may not support USB booting.

Fix: Enable USB booting in BIOS and set the USB drive as the first boot device.

7. USB Drive Partitioning

Cause: The USB drive may not be partitioned correctly.

Fix: Use a tool like GParted to partition and format the USB drive properly.

8. Incorrect Command Usage

Cause: Incorrect usage of commands like dd or hdiutil.

Fix: Use the correct syntax, e.g., sudo dd if=proxmox-ve_*.iso of=/dev/rdiskX bs=1m.

9. System Compatibility Issues

Cause: The system may not meet Proxmox requirements.

Fix: Ensure the system meets the Proxmox version’s minimum specifications. Consider upgrading hardware if necessary.

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Conclusion

By addressing these potential causes and applying the corresponding fixes from our Experts, we should be able to resolve the “No device with valid ISO found” error and successfully install Proxmox.