One device with multiple ISO files. Easy to use: install once, add ISO files and boot computers from it

• BIOS and UEFI support
• Secure Boot support (boot, manage uefi keys)
• Load UEFI drivers
• Launch .efi executables and other boot loaders
• Boot Linux from .iso files
• Boot Windows 10/11 installer from ISO (currently, SB must be disabled during installation)
• Boot Linux installer from network (experimental)
• Boot locally installed systems: Linux, Windows
• Automatically update configuration files
• Without background services
• exFAT file system support
• Automatic detection of compatible ISO images (GRUB loopback)
• Support for systems without loopback support
• Allows customisation of ISO boot menu (for example: custom kernel options)
• Support for USB, SSD, nvme, mmcblk, loop, nbd and virtual disks
• Support for x86, x86_64

List of tested ISO images: new, (old)

Go to Releases, download the latest version and unpack the downloaded archive.

Check and install the required packages (in most cases they should be installed by default):

• tar, bzip2, xz
• sgdisk, wipefs
• mkfs.fat, mkfs.exfat, ...

Go to the directory where you extracted the files and run the following at the console

$ ./multios-usb.sh -l

This command will show you the USB devices available on your system.
To install MultiOS-USB, type the following command, replacing /dev/sdX with your chosen device path. For example:

$ sudo ./multios-usb.sh /dev/sdX

Recommended installation method for Windows. Go to Releases and download the appropriate file.
Installation details can be found here and in the downloaded archive.

After installation, copy your ISO files to the /ISOs directory and boot your computer from USB.
You can also add your own configuration files to the /MultiOS-USB/config_priv directory. They will not be deleted during the automatic MultiOS-USB update.
If you want to change the configuration for a given ISO - copy the one you have chosen from the config folder, paste into config_priv and update it according to your needs.
The updated configuration will be detected automatically.

On the first boot with Secure Boot enabled on each new computer, a MultiOS USB certificate must be installed.

Press Enter

Select: Enroll key from disc

Select MultiOS-EFI as partition, then browse to the EFI/cert directory and select MultiOS-USB.cer, Continue and confirm (Yes) key enrolling.
You can also immediately add certificates (keys) from popular distributions in the same way.
If you want to add a certificate later, you can do it by selecting in the Main Menu:
EFI Tools --> and then Add UEFI key or hash.

You can add support for new operating systems. No need to reinstall.
Download and unpack MultiOS-USB repository

To update configuration files, simply type the following command, replacing /dev/sdX with your chosen device path.

$ ./multios-usb.sh -u /dev/sdX

• Remove all files and directories on your USB in /MultiOS-USB/config/
• Copy the downloaded files and directories from config to the above directory.