With Ventoy, you don't need to format the disk over and over, you just need to copy the ISO/WIM/IMG/VHD(x)/EFI files to the USB drive and boot them directly.
https://www.ventoy.net/
Ventoy-GRUB4DOS_UEFI
GRUB4DOS_UEFI
guest@porteux:~$ ll /mnt/sda1/BOOTX64_G4E.EFI
-rwxr-xr-x 1 root root 417792 Mar 23 13:24 /mnt/sda1/BOOTX64_G4E.EFI*
guest@porteux:~$ strings-BSD /mnt/sda1/BOOTX64_G4E.EFI | egrep 'BOOTX64|2025|menu.lst'
/efi/grub/menu.lst
/EFI/BOOT/BOOTX64.EFI
otherwise return 0. Not output information.eg: ls --test (hd0,0)/efi/grub/menu.lst
GRUB4DOS for_UEFI 2025-11-25, Mem: %dK/%dM/%ldM, Free_mem_start: 0x%x
/EFI/BOOT/BOOTX64.EFI
/efi/grub/menu.lst
find --set-root /efi/grub/menu.lst
/efi/grub/menu.lst
With GRUB4DOS_UEFI, you just need /EFI/BOOT/BOOTX64.EFI and /EFI/grub/menu.lst 2 files, and boot them directly.
grub4dos-for_UEFI-2025-11-25.7z 1.2M
https://github.com/porteux/porteux/issues/97#issuecomment-4115922981
