menuentry "Ubuntu 20.04 Live Persistent" linux /casper/vmlinuz persistent path=/casper initrd /casper/initrd
Use the remaining space on your external HDD for regular file storage alongside your bootable ISOs.
: Modern Linux installers (like Ubuntu or Mint) are designed to detect existing Windows installations and will automatically configure the GRUB boot menu to offer a choice between all installed systems. Hardware & Configuration Tips multiboot hdd 2021 final verified
If you are creating a multiboot drive for Windows 11 in 2021, be aware that the official ISO may have additional requirements. With Easy2Boot, for example, you might need to add the WMIC Windows component to the drive for full compatibility. This is often handled automatically by the tool's latest versions.
: A classic, lightweight tool that is easy to use for beginners but requires adding ISOs one by one through its interface. menuentry "Ubuntu 20
Always install Windows first, then Linux. Linux’s bootloader (GRUB) is generally better at recognizing and managing multiple operating systems.
Select your external drive. Check the box for Auto format it with FBinst . Choose NTFS for compatibility with large Windows image files, or FAT32 if you strictly need UEFI booting without advanced tweaks. With Easy2Boot, for example, you might need to
Once complete, open your file explorer. You will see a new drive volume named "Ventoy". Simply create a folder (e.g., ISOs ) and copy all your operating system images directly into it.