http://211.23.61.114/RedHat/7/images/pxeboot/initrd.img
http://211.23.61.114/RedHat/7/images/pxeboot/TRANS.TBL
http://211.23.61.114/RedHat/7/images/pxeboot/upgrade.img
http://211.23.61.114/RedHat/7/images/pxeboot/vmlinuz