You are not giving BOOTP info (you are missing the<bootp> tag, which goes inside<dhcp>).
Okay, here's the XML that's now being generated by my test script:
<network> <name>testbr6253</name> <forward mode='nat' /> <bridge name='testbr6253' stp='on' forwardDelay='0' /> <ip address='192.168.133.1' netmask='255.255.255.0'> <tftp root='/tmp/tmp.dEf7FPCaKm/tftpboot' /> <bootp file='pxelinux.0' /> <dhcp> <range start='192.168.133.100' end='192.168.133.199' /> </dhcp> </ip> </network>
However, I still get the message "No filename or root path specified" within the VM and it does not boot from the above directory.
<bootp> must be within <dhcp> (think of elements within <ip> as services that run, such as TFTP or DHCP; <bootp> is just additional data that is passed via DHCP). Paolo