3 echo Amazon EC2 - iPXE boot via user-data
4 echo CPU: ${cpuvendor} ${cpumodel}
9 echo DHCP attempt ${attempt}
10 dhcp --timeout 5000 && goto dhcp_ok ||
13 iseq ${attempt} 10 || goto dhcp_retry
16 echo DHCP failed - rebooting
22 chain -ar http://169.254.169.254/latest/user-data ||