done it now it shows up
sh: 1: del: not found
source/bootloader.s: Assembler messages:
source/bootloader.s:7: Error: junk at end of line, first unrecognized character is `/'
sh: 1: xcopy: not found
arm-none-eabi-ld: cannot find bootloader.o
sh: 1: copy: not found
arm-none-eabi-objcopy: 'a.out'...