Forum Discussion
Possible to put multiple iso files on one bootable usb flash drive from windows 11?
Office has a dozen of computers to get os reinstalled or updated from time to time. In the past , I usually prepared a couple of USB flash drives for different operating systems, such as Windows 11, ...
If you are comfortable with manual partitioning and editing bootloader configurations, using Manual Partitioning + GRUB4DOS allows you to put multiple ISO files one bootable USB with maximum control. It’s ideal for power users who want a tailored multi-boot environment.
What does the process involve?
- Partition the USB drive using disk management tools (like Disk Management in Windows or GParted), creating separate partitions for files and bootloader.
- Format the partitions appropriately (FAT32 or NTFS).
- Install GRUB4DOS on the drive, which involves copying bootloader files.
- Configure the GRUB4DOS menu (menu.lst or grub.cfg) to include entries for each ISO file, specifying how to boot each.
- Copy your ISO files into the designated partition.
- Boot from the USB, and GRUB4DOS will present a menu to select which ISO to load.
Why consider this method for putting multiple ISO files in one bootable USB?
* Maximum flexibility: You can customize the boot menu extensively.
* Supports a wide range of ISO files, including some that other tools might not handle easily.
* No limitations on ISO types or sizes (beyond partition constraints).