u-boot for .h file

Hi ,

I need to port the U-boot (2011.6) to NIOS-II Cyclone-III based customized board. Started following the Altera wiki http://www.alterawii.com/wiki/dasuboot instructions.

I cannot generat the my_nios2_fpga.h from sopc file

(My environment is UBUNTU 10.4)

Because when I key in "yum install perl-XML-LibXML".

The information shows

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Setting up Install Process

No package perl-XML-LibXML available.

Nothing to do

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Hence, I cannot success when I execute "sopc-create-config-files my_nios2_sopc.sopc my_nios2_fpga.h"

The error information shows

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sopc-create-config-files:1: parser error : Start tag expected, '<' not found

# !/usr/bin/perl

^

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Could you tell me how can I do

Thank you very much.