[ECOS] How an application booting from floppy?

[yyl]

­Hi I want to build an application booting from floppy on 
target of pc.My host system is ecos1.3.1 on Redhat linux6.1.The commands what I 
have used as followed(source file of the application is 
hello.c):                          
mkdir  
/ecos-work                          
ecosconfig new pc then I edited the ecos.ecc,and changing the configuration 
option CYG_HAL_STARTUP to floppy, i.e. to:    cdl_component 
CYG_HAL_STARTUP {     # Flavor: data     # 
No user value, uncomment the following line to provide one.    
user_value FLOPPY     # value_source 
default     # Default value: RAM     # Legal 
values: "RAM" "FLOPPY"   next 
:                          
ecosconfig check    (the result shows no conflict; I continued to 
do 
follows)                          
ecosconfig 
tree                          
make  Now I began bulid the 
application:                 
i386-elf-gcc -g -I/ecos-work/install/include -o hello 
hello.c -L/ecos-work/install/lib -Ttarget.ld 
-nostdlib                 
i386-elf-objcopy -O binary hello hello.bin  Then I use the next command 
to copy hello to a 
floppy:                
dd if=hello.bin of=/dev/fd0 Finally I use the floppy to boot the target, but 
no success. What is wrong with it? And I found the document 
RELEASENOTES.txt in the directory packages\hal\i386\pc\v1_3_1\doc;it points out 
: "  There are a number of things that are currently incomplete and 
are listed here to indicate where this code is expected to change in 
the future. These include:   -At present the stub monitor can only 
boot from floppy disk . Support for applications that can boot in this way 
should also  be possible, as is booting via   BOOTP/TFTP from 
a network interface. " So  I want to know whether the application 
can boot  from flopp;Is it  supported by current version of  
ecos?