How to make a bootable USB flash drive not in fat32 to boot OS from it?

Question

Windows

I use the sergei strelec boot disk, this assembly makes me very happy, I bought myself a 256GB flash drive, my pants are full of joy, but it quickly disappeared when I found out that UEFI is loaded only with fat32, now the question is, how to be?)

Can the flash drive be divided into several volumes ? Make a boot area, and indeed the entire OS in general, on one partition with fat32, and allocate the rest of the space to NTFS?
Or are there any other options? Please advise

ps all salt to ship both MBR and GPT

Answer 1

There is a specialized minimal UEFI:NTFS bootloader for a FAT32 partition, which only knows how to load the NTFS driver, find the NTFS partition and load the next bootloader from the NTFS partition.
Link to the finished image of the section .
Create a GPT partition on the flash drive, create two partitions: the first for the entire size of the flash drive without 1 MB, the second for 1 MB and type EF00. Format the first one in NTFS, on the second one, write the image using the link.
Secure Boot will not work with this boot: UEFI:NTFS is not signed.