dd to save a life?

Now computer world is throwing me for a loop. I want to create a bootable thumb drive. With TRK let's leave it. -- Yes i've used this before. Yes, I've done all these methods before. Yes, I've used the .ISO even, or alternative methods.

1. sudo dd if=trinity-rescue-kit.3.4-build-372.bin of=/dev/sda bs=4M

2. I used YUMI, I dd'd the file. I zipped/un-zipped -- I keep getting ONE error, "No configuration file found" removing file entry.

I've tried previous versions to the ISO. No luck... :(

Should move the .ISO onto my thumb drive. (After verifying partitions with lsblk)

lsblk == display block size information -- Basically FDISK without the disk partitions. It's all in block sizes.

Why can I not, Sure, it moves the .bin/.iso file onto the thumb drive. -- But the thumb drive is not bootable as it should be?

Why doesn't that make sense, you see.... all I'm doing is copying files from an extracted ISO/IMG/BIN file

moving them onto a thumb drive and the thumb drive should be bootable. -- BUT WHY, do these computers not recognize it as an operating system... I do not compute.

Yes, I've tried USB boot creators -- SAME result. == NOT FUN.

But then if i do the .BIN file, it creates correct files. just no boot??

This is ALWAYS WHERE YUMI, comes into play:::: https://www.pendrivelinux.com/yumi-multiboot-usb-creator/