Basic iPXE script for embedding when using ProxyDHCP

#!ipxe
set dhcpTry:uint32 0
set bootTry:uint32 0
:retry_dhcp
inc dhcpTry
dhcp && goto retry_boot ||
echo DHCP Failed. Count: ${dhcpTry}
echo -n Retrying in 3 seconds && sleep 1 && echo -n . && sleep 1 && echo -n . && sleep 1 && echo . ||
goto retry_dhcp
:retry_boot
inc bootTry
imgfree
chain ${proxydhcp/next-server}/script.ipxe && exit ||
echo Boot Failed. Count: ${bootTry}
echo -n Retrying in 3 seconds && sleep 1 && echo -n . && sleep 1 && echo -n . && sleep 1 && echo . ||
goto retry_boot