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💿Virtual ODD (ISO)

Follow the guide in order to set up your virtual ODD.

chevron-rightStep 1: Pre-check before use (Important)hashtag

  • Are virtual drives enabled? Mode Configuration

  • Are you going to use encryption at the same time? If so, proceed with encryption first. Encryption Guide

  • The ISO file must be a bootable file.

  • Since IODD works the same as physical ODD, an ISO file that does not boot from an actual ODD will not boot from IODD.

  • If your PC only supports UEFI boot, you must boot using the Virtual Drive function. Some motherboards do not support ODD boot.

  • Even in special cases (when installing an older OS on the latest generation board), the installation operation may fail due to a driver conflict. In this case, VHD files are mostly bootable and installable.

chevron-rightFor macOS Usershashtag

  • IODD cannot directly mount DMG/BIN/IMG files or disk images for MAC. Must convert to ISO file.

  • You can change it directly in Terminal as shown below:

# 1. Start conversion (converts DMG to CDR format)
$ hdiutil convert [input.dmg] -format UDTO -o [output.iso]

# 2. Rename extension from .iso.cdr to .iso
$ mv [output.iso.cdr] [output.iso]

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ISO file mount

  1. Prepare the ISO file.

  2. Copy the ISO file to the IODD disk.

  3. Safe removal and Reconnect, or Long Press the 1 key for 3 seconds.

  4. Select the ISO file from the IODD screen and Press 6 or Enter.

    • If it is mounted normally, you can see that the virtual drive is recognized on the desktop or in the Finder.

  5. Save current state: Reconnecting will bring up the virtual drive in its current saved state by Pressing the 9 key.

  6. No Booting Required: If the installation does not require booting, double-click the virtual drive or autorun as it is to execute the operation.

  7. Booting Required: If you need to boot from a virtual drive, continue with the BIOS settings below.

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File not visible? Try selecting another partition by Long Pressing the 4 key (partition selection).

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If Virtual Drive is not enabled Please refer to the Mode Configuration to enable Virtual ODD.

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CMOS/BIOS Boot Order Setting

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Boot setup menus may differ depending on the board manufacturer/chipset configuration.

Enter the PC's CMOS/BIOS screen (typically using F2 or DEL keys during booting).

BIOS Setup Entry
Enter BIOS setup to configure boot priority

  1. Select the BOOT section: This may be in a submenu like "Advanced" depending on the manufacturer.

  2. Set Boot Mode: Set the boot mode to Legacy if required.

  3. Set Order: Select IODD Virtual ODD Drive as the first priority in Boot Order.

Boot Order Priority
Set IODD Virtual ODD as the primary boot device
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Multi-Lun Support: Some boards do not support Multi-Lun. In that case, enable only IODD Virtual Drive as the bootable drive (disable other drives in the Boot order).

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Legacy/UEFI: If you are unable to select Legacy/UEFI, please contact the manufacturer or use VHD boot methods.

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Important: To prevent accidental formatting of the IODD during OS installation, Long Press the 3 key for 3 seconds to enable Write Protection.

Save & Exit (usually F10)

If you have set the correct ISO at the top of the boot order, the PC will boot via the virtual ODD.

  • Windows: You will be prompted to press a specific key on the boot screen (e.g., F6).

  • Mac: For Intel or Silicon Macs, refer to Apple's official guide for booting from an external disk.

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