How to eject the bootable kickstart CD after build ?

[T.J. Yang]

Hi, there

I tried "/usr/bin/eject /dev/cdrom" or "reboot" as last line in ks.cfg in 
the hope
to eject the CD after finish the ks.cfg pre/post commands.

But these two command doesn't work. Anyone know how to auto eject
the bootable CD in ks.cfg ?

Thanks for your pointer

T.J. Yang