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+# ADR: Use iPXE as the Primary Bootloader with Chaining for Architecture Independence
+
+**Status:** Implemented
+
+**Context:**  
+Harmony requires a flexible and unified bootloader solution to handle both BIOS and UEFI architectures. We need support for dynamic boot configurations, advanced network booting capabilities, and the ability to manage diskless machines.
+
+**Decision:**  
+Adopt iPXE as the primary bootloader. For BIOS and UEFI clients, use chaining to load iPXE, ensuring all clients boot into a common iPXE environment.
+
+**Consequences:**  
+- **Benefits:**  
+  - Single configuration file for all architectures.  
+  - Enables dynamic and scripted boot processes.  
+  - Supports booting over various protocols (HTTP, HTTPS, iSCSI, SAN, etc.).  
+  - Allows diskless machines with networked root filesystems.  
+- **Trade-offs:**  
+  - Adds a dependency on iPXE.  
+  - Requires proper configuration and maintenance of iPXE.