iPXE

iPXE is an open-source network boot firmware that enables computers to start up and load operating systems directly over a network connection. Instead of using traditional boot media like USB drives or CDs, iPXE allows a device to retrieve its operating system or diagnostic tools from a remote server. This is especially useful in managing multiple systems efficiently, performing quick deployments, or recovering systems. It supports standard network protocols and can extend capabilities through scripting and additional features, making network-based booting flexible and scalable for enterprise or data center environments.