Point the installer at your virtual machine software, then drag and drop the ISO into the box.

I don't use VMs, so I could not test this, but it is supposed to operate the same way. Multisystem also includes a similar installer for Virtual Machines as a separate Menu entry. All but the french version of Supergrugdisk may just be due to a corrupted download. For CentOS however, it must be renamed to centos-boot.iso as shown. So reviewing the supported images, you can see that the filename for Ubuntu can remain the same as the original file. On my download, PloP Boot Manager does not run, Supergrubdisk for Grub 2 is broken, and Supergrubdisk for Grub 1 is in French. It is important to note that the downloaded images should be renamed as listed in the Supported distros list or a symlink to be created. The system also automatically installs Grub4DOS - to multiboot Windows, Syslinux, PloP boot manager, and Supergrubdisk for Grub 1 and 2. If you wish, Multisystem can be configured to use the Burg fork of Grub for a nicer looking menu (see the home page). There is a second window above the ISO install window where the app displays a list of the ISOs already on the drive. Troubleshooting tip: If the cmd script does not work, run ISOdocsMakeE2BUSBDriveDebugAllMakeE2BAdmin. Windows 10 systems can access multiple partitions on USB Flash drives (USB SSDHDD drives are OK on all Windows OS’s). Other than that, it is just a matter of sitting and watching he readouts until the ISO is copied and Grub is updated, then dragging and dropping the next ISO into the window. Copy all ISO files to your USB drive and then Legacy or UEFI boot New.

The first time you add an ISO in any session, you will be asked for your password before Grub is installed or updated. The app takes over, copies the ISO image to the drive and adds or updates the Grub bootloader. All that is required is to drag the ISO file from where ever you stored it into this window and drop it. There is a small box at the bottom of the window. Once the drive is validated, the interface changes to the ISO install window. If you try to use a drive with no partition, Multisystem will install one and label it 'Multisystem'. This is not mentioned on the home page or anywhere else, but the drive must be formatted to FAT32 and set up with one labeled partition (the label can say anything but cannot contain any spaces). The first thing the app does is validate the flash drive. I installed all seven versions of Linux MInt 9 (main 32 and 64 bit, Xfce 32 and 64, KDE, LXDE, and Fluxbox) to a 16 GB drive in about 40 minutes. Here is one way to create a Multiboot USB Flash Drive from a running Ubuntu (I used the Live CD). Boot ISO Files directly from USB using Grub2 from Linux. In action, Multisystem is very easy to use and quite quick (on a per ISO basis, it is faster than Unetbootin). Boot Multiple ISO from USB via Grub2 using Linux.

The page is written in French, but there is a language choice menu in the upper right that includes 52 different languages. Multisystem is an application that allows loading of multiple ISO files onto one flash drive and installs Grub bootloader to allow you to choose which ISO to run. Some of you (perhaps many of you) already know about 'Multisystem'.

Multiple linux iso usb