Cobbler's per-MAC gPXE script passed inst.ks.sendmac, making anaconda send its
interface MACs as X-RHN-Provisioning-MAC-N headers when fetching the kickstart.
The bootapi iPXE script omitted it, so it was not a full drop-in for Cobbler's
gpxe output.
- Emit inst.ks.sendmac immediately before inst.ks= in the boot iPXE template,
matching Cobbler ordering.
Claude-Session: https://claude.ai/code/session_01JUoARVdmhxKQHyyyp1pxeT