No, UBCD doesn't send any output to the serial port.
Syslinux (SYSLINUX/ISOLINUX/EXTLINUX/PXELINUX) support sending output fo the serial port, when you specify the SERIAL keyword in the syslinux config files:
http://syslinux.zytor.com/wiki/index.ph ... control.5DBut I don't know if the programs you boot from the Syslinux menu, support the serial console.
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Download
Ultimate Boot CD v5.0:
http://www.ultimatebootcd.com/download.htmlUse
Parted Magic for handling all partitioning task:
http://partedmagic.com/