The most common use for a bootable USB is to install an operating system, but they can also be used to run diagnostic tools and recovery utilities.īootable USB drives are created using a number of different methods, but the most common is to use a utility like Rufus or Universal USB Installer. The concept of "Ventoy Compatible" is introduced by myself and I hope that it can be widely supported someday.A bootable USB is a USB drive that has been configured to contain a bootable operating system. If it contains the process mentioned above. I call such an OS distro or iso file as "Ventoy Compatible" Ventoy gives some ways for the OS distros to chose to mark themselves. Ventoy will no longer need to do the boring hook.Īnother thing is that how ventoy knows the OS in the iso file is "Ventoy Compatible" ? So things will become very simple if the OS distros integrate this tool and do the compatible processing.
Of course the tool will get nothing if they were not booted by ventoy, in that case they can go as originally. In this way, the OS can know that they were booted from a virtual disk created by ventoy and can also know which iso file in which disk is the right image.īased on that, the OS can find the source medium successfully and continue to boot.
In fact, ventoy saves the information to runtime memory before booting and provides a tool to get the information. But the hook is really a hard work because there are so many different OS distros and so many special cases. In order to support that ventoy must do some hook before boot. ) to find the source medium.īut with ventoy they will not find such medium because there is no such physical media and they don't know that they were booted from a virual disk. In normal case, the OS will search all the hardware storage media(CDROM/USB/HD. Most of the morden OS's kernels will use their driver to access hardware after boot, so the virtual disk will not be visible to them. In most case it works only in bootloader period. From the document you can see that ventoy will create a virtual disk from the iso file and boot it.īut the virtual disk is only on BIOS(Legacy or UEFI) level.
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