[help]Why can't redirect console to serial?

Build file as followed on a x86+bios platform, but when connect serial 1 to windows hyperterminal or QNX host qtalk, nothing be displayed. Any message still display in the local machine’s console, yet by qtalk it can communicate with the connected host. what’s the problem?
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[virtual=x86,bios+compress].bootstrap=
{startup-bios
PATH=/proc/boot LD_LIBRARY_PATH=/proc/boot procnto}
[+script].script=
{devc-ser8250 -b9600 &
reopen
[+session]PATH=:/proc/boot esh}
[type=link]/dev/console=/dev/ser1
libc.so
[data=copy]
devc-ser8250
esh
ls
cat
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Try reopen /dev/ser1

Also you need to create a link for libc.so (ldqnx.so I think) look it up in the doc.

Thanks for your help , now it really works well.