Index: head/sys/geom/part/g_part_gpt.c
===================================================================
--- head/sys/geom/part/g_part_gpt.c
+++ head/sys/geom/part/g_part_gpt.c
@@ -731,6 +731,12 @@
 		sbuf_printf(sb, "%s<rawuuid>", indent);
 		sbuf_printf_uuid(sb, &entry->ent.ent_uuid);
 		sbuf_printf(sb, "</rawuuid>\n");
+		sbuf_printf(sb, "%s<efimedia>", indent);
+		sbuf_printf(sb, "HD(%d,GPT,", entry->base.gpe_index);
+		sbuf_printf_uuid(sb, &entry->ent.ent_uuid);
+		sbuf_printf(sb, ",%#jx,%#jx)", (intmax_t)entry->base.gpe_start,
+		    (intmax_t)entry->base.gpe_end);
+		sbuf_printf(sb, "</efimedia>\n");
 	} else {
 		/* confxml: scheme information */
 	}