Booting FreeDOS from USB sticks

These are only my quick notes on how to boot FreeDOS from an usb stick, mainly taken from this short and confusing post and from this more detailed guide.

1. get and install syslinux on a FAT32 (or FAT) usb stick;
2. get a FreeDOS distribution;
3. copy the "fat32lba.bin" (or "fat16.bin" in case of FAT), "command.com" and "kernel.sys" files from the FreeDOS distro to the root directory of the stick;
4. rename the "*.bin" file as "*.bss";
5. edit "syslinux.cfg" to be:

timeout 1
default fdos
prompt 0

label fdos
   BSS fat32lba.bss
   append -

6. if necessary add a suitable autoexec.bat and config.sys;
7. unmount the usb stick and reboot.