Ventoy: The Open-Source Game Changer That Kills Multiple ISO Formatting Headaches Forever + Video

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Introduction:

Managing multiple bootable USB drives for different operating systems and diagnostic tools is a logistical nightmare for IT professionals and cybersecurity experts. Ventoy revolutionizes this process by allowing you to simply copy ISO files directly to a USB drive and boot from them without repetitive formatting, all while remaining open-source and highly extensible.

Learning Objectives:

  • Understand how Ventoy’s unique bootloader architecture eliminates traditional multi-boot USB limitations
  • Master the installation, configuration, and troubleshooting of Ventoy on both Linux and Windows environments
  • Learn to extend Ventoy with plugins, custom menus, and integrate security-focused forensic ISO collections

You Should Know:

  1. Ventoy Installation and Basic Setup – No More Formatting Loops

Ventoy works by partitioning your USB drive into two partitions: a hidden boot partition and a data partition where you simply drop ISO files. This eliminates the need to use tools like Rufus or dd for each new ISO.

Step‑by‑step guide for Windows:

  1. Download `Ventoy2Disk.exe` from the official GitHub releases page.
  2. Insert your USB drive (warning: all data will be erased).

3. Run the executable as Administrator.

  1. Select your USB device from the drop‑down list.

5. Click “Install” and confirm the warning.

  1. Once complete, Windows will show a new drive letter (e.g., VENTOY). Copy any `.iso` files directly into this drive.
  2. Reboot and select USB boot – Ventoy’s menu will list all ISOs automatically.

Step‑by‑step guide for Linux:

 Download and extract Ventoy
wget https://github.com/ventoy/Ventoy/releases/download/v1.0.99/ventoy-1.0.99-linux.tar.gz
tar -xzf ventoy-1.0.99-linux.tar.gz
cd ventoy-1.0.99

Identify your USB device (e.g., /dev/sdb)
lsblk

Install Ventoy (replace /dev/sdb with your device)
sudo sh Ventoy2Disk.sh -i /dev/sdb

Mount the data partition and copy ISOs
sudo mount /dev/sdb1 /mnt
cp /path/to/your.iso /mnt/
sudo umount /mnt

Troubleshooting tip: If Ventoy fails to boot on older Legacy BIOS machines, try pressing `F7` during Ventoy’s menu to switch to text mode (as noted by Olivier MOREL). For Lenovo laptops with graphical glitches, this often resolves the issue.

  1. Advanced Configuration with VentoyPlugson – Custom Menus and Directories

VentoyPlugson provides a web-based interface to edit `ventoy.json` without manual XML hacking. This allows you to organize ISOs into subdirectories, set default boot entries, and even password-protect certain tools.

Step‑by‑step guide:

  1. After installing Ventoy, download `VentoyPlugson.exe` (Windows) or run the Linux script: 
    sudo ./VentoyPlugson.sh -p 24680
  2. Open a browser and navigate to `http://127.0.0.1:24680`.
  3. Under “Global Control Plugin”, enable “Show Directory” – this lets you see folder names alongside ISO files.
  4. To organize ISOs, create folders on the data partition (e.g., Linux/, Windows/, Forensics/).
  5. In the web interface, configure “Menu Alias” to rename displayed entries (e.g., show “Ubuntu 22.04 LTS” instead of ubuntu-22.04.iso).
  6. For security, use the “Password Plugin” to lock specific ISOs or entire directories. Hash a password with: 
    echo -n "mypassword" | sha256sum

Then paste the hash into the plugin configuration.

Example `ventoy.json` snippet for directory display:

{
"control": [
{ "VTOY_DEFAULT_MENU_MODE": "0" },
{ "VTOY_TREE_VIEW_MENU_STYLE": "1" }
]
}
  1. Creating a Forensic and Incident Response Multi-Boot USB

Cybersecurity professionals can transform Ventoy into a portable incident response toolkit by combining forensic live CDs, password reset tools, and antivirus rescue images. MediCat USB, a Ventoy-based distribution, already bundles WinPE, password crackers, and data recovery tools.

Recommended ISO collection for IR:

  • Kali Linux Live (penetration testing)
  • CAINE (forensic environment with write-blocking)
  • Hiren’s BootCD PE (Windows recovery)
  • SystemRescue (filesystem repair)
  • Ultimate Boot CD (hardware diagnostics)
  • ClamAV Rescue (offline antivirus)

Step‑by‑step to add persistence (save changes across reboots):

  1. Create a `persistence` directory on the Ventoy data partition.

2. For Ubuntu-based ISOs, create a `persistence.conf` file:

/ union

3. Use `mksquashfs` to create a persistence image:

dd if=/dev/zero of=persistence.img bs=1M count=1024
mkfs.ext4 persistence.img

4. Rename your ISO to include `-persistence` (e.g., ubuntu-22.04-persistence.iso).
5. Ventoy will automatically mount the `.img` file when booting that ISO.

4. Secure Deployment and Bootloader Hardening

Attackers can abuse bootable USBs to bypass security controls. Hardening your Ventoy drive prevents tampering and unauthorized booting.

Step‑by‑step hardening:

  1. Enable GPT partition scheme (instead of MBR) during Ventoy installation for UEFI Secure Boot compatibility.
  2. Sign the Ventoy bootloader for Secure Boot on modern hardware:

– Download the signed `efi` files from Ventoy’s GitHub (or use the `Ventoy2Disk.exe -s` option).
– Import Ventoy’s Machine Owner Key (MOK) if your system complains.
3. Encrypt the data partition using VeraCrypt or LUKS:

 Linux: Encrypt the second partition
sudo cryptsetup luksFormat /dev/sdb2
sudo cryptsetup open /dev/sdb2 ventoy_data
sudo mkfs.ext4 /dev/mapper/ventoy_data

Note: You must unlock the partition before Ventoy can read ISOs. This is best for sensitive toolkits.

4. Disable Auto‑boot by editing `ventoy.json`:

{ "VTOY_AUTO_BOOT_DEFAULT": "disabled" }

5. Troubleshooting Legacy BIOS and Incompatible ISOs

Despite Ventoy’s compatibility, some older PCs (circa 2008–2012) fail to boot due to BIOS limitations or ISO-specific bootloaders (e.g., FreeBSD, older Windows PE builds).

Step‑by‑step diagnostic and mitigation:

  1. Test with “grub2” mode: Press Ctrl+Alt+F2 at Ventoy’s main menu to switch to GRUB2 backend instead of the default memdisk.
  2. For Windows ISOs that hang, use the `wimboot` mode: rename the ISO to include `_wimboot` (e.g., win10_22h2_wimboot.iso).
  3. Legacy BIOS workaround: Reinstall Ventoy with MBR partitioning and disable UEFI in BIOS. If still failing, use `dd` to write the ISO directly as a fallback: 
    sudo dd if=problematic.iso of=/dev/sdb bs=4M status=progress
  4. Check ISO integrity – corrupted downloads cause boot failures: 
    sha256sum your.iso  Compare with official checksum

6. Alternative Hardware Solutions: IODD and Zalman

While Ventoy is software-based, hardware emulators like IODD (USB-attached virtual CD-ROM) and legacy Zalman ZM-VE300 offer physical encryption keypads and dual‑mode storage. These are useful for high‑security environments where USB mass storage is disabled but optical drive emulation is allowed.

When to use hardware over Ventoy:

  • You need hardware‑level AES‑256 encryption without OS dependencies.
  • Your organization’s endpoint protection blocks unknown bootloaders but allows “USB CD-ROM” devices.
  • You frequently boot on air‑gapped systems where installing Ventoy drivers is impossible.

Comparison command for detecting emulated drives on Linux:

lsusb -v | grep -i "cd-rom"

7. Automating Ventoy Deployment with Scripts

For IT teams deploying hundreds of Ventoy drives, automation saves hours. Below is a PowerShell script for Windows and a bash script for Linux.

Windows PowerShell script (Run as Admin):

$usbDrive = "D:"  Change to your USB drive letter
$ventoyExe = "C:\Tools\Ventoy2Disk.exe"
$isoFolder = "C:\ISOs"

Install Ventoy silently
Start-Process -FilePath $ventoyExe -ArgumentList "/install $usbDrive /silent" -Wait

Copy ISOs
Copy-Item "$isoFolder.iso" -Destination "$usbDrive\" -Recurse

Write custom config
@"
{
"control": [
{ "VTOY_DEFAULT_SEARCH_ROOT": "/ISOs" }
]
}
"@ | Out-File -FilePath "$usbDrive\ventoy\ventoy.json" -Encoding utf8

Linux bash script:

!/bin/bash
USB_DEV="/dev/sdb"
VENTOY_DIR="/opt/ventoy"
ISO_SOURCE="/mnt/nas/isos"

sudo $VENTOY_DIR/Ventoy2Disk.sh -i $USB_DEV --force-gpt
sudo mount ${USB_DEV}1 /mnt/ventoy
cp $ISO_SOURCE/.iso /mnt/ventoy/
echo '{ "control": [ { "VTOY_TREE_VIEW_MENU_STYLE": "1" } ] }' > /mnt/ventoy/ventoy/ventoy.json
sudo umount /mnt/ventoy

What Undercode Say:

  • Ventoy eliminates the archaic cycle of reformatting USB drives for every ISO, reducing deployment time from minutes to seconds – a massive productivity boost for sysadmins and pentesters.
  • The open-source nature and plugin ecosystem (VentoyPlugson, MediCat USB) allow deep customization, from forensic toolkit integration to Secure Boot bypasses, making it indispensable for red team operations.
  • However, legacy BIOS and obscure ISO bootloaders remain pain points; always keep a traditional dd/Rufus fallback for ancient hardware. The community’s workarounds (F7 text mode, wimboot rename) are effective but not universally documented.

Prediction:

Within two years, Ventoy or its derivatives will become the default bootloader pre‑installed on enterprise‑grade USB drives, competing with hardware emulators like IODD. As UEFI Secure Boot becomes universal, Ventoy’s signed bootloader and MOK import process will set the standard for portable multi‑boot tools. Simultaneously, attackers will increasingly abuse Ventoy’s flexibility to deploy stealthy, persistent live environments that evade traditional endpoint detection – forcing security vendors to develop boot‑time integrity verification.

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