OK, I know most here don't advocate using FAT16/32 USB's using syslinux to boot tc
However, some users will want to do this.
Problem-
Syslinux can only recognize filenames 8 letters long and filename extensions 3 letters long.
microcore.gz is not recognized by syslinux at boot, too many letters.
Solution; re-name microcore.gz to whatever has 8 letters or less;
Name it "blue" and it'll work!
append initrd=/boot/blue
But, not microcore.
Just a heads up gang, I actually use ext2 usb with grub, but in making tc-2.0-usb download for my site I discovered this bug, as my download is made to boot anyway; syslinux, isolinux, grub.