This changes 9pxeload to use /lib/pxe/default as a plan9.ini. Using
/cfg IMHO populates even more our crowded /, also, using just %E
makes it necessary to use one file per machine even if a single
file would be enough.
The change of load.c should probably be the addition of "default"
after the line with "%E". I include this file only to point out  the change.

Notes:
Sat Oct 16 00:31:29 EDT 2004 rsc
    sorry, we've decided on /cfg for per-machine
    configuration and we're going to run with it.
    we have a lot of stuff in our /cfg.
    
    it's working well.
    
    and who says root can't be populated?
    this isn't unix where /usr really means "/everything".  ;-)
    
    russ


Reference: /n/sources/patch/sorry/pxe-default-ini
Date: Sat Oct 16 06:32:38 CES 2004
Reviewed-by: rsc

--- /sys/src/boot/pc/bootp.c	Sat Oct 16 06:32:38 2004
+++ /sys/src/boot/pc/bootp.c	Sat Oct 16 06:32:38 2004
@@ -587,7 +587,7 @@
 	default:
 		return -1;
 	case 0:
-		if(strcmp(name, "cfg") == 0){
+		if(strcmp(name, "lib") == 0){
 			f->walked = 1;
 			return 1;
 		}
@@ -599,17 +599,18 @@
 		}
 		break;
 	case 2:
-		if(strcmp(name, "%E") != 0)
-			break;
-		f->walked = 3;
-
 		if(bootpopen(f->fs->dev, nil, &rep, 0) < 0)
 			return 0;
-
 		ini = pxether[f->fs->dev].ini;
-		snprint(ini, INIPATHLEN, "/cfg/pxe/%E", rep.chaddr);
-		f->path = ini;
 
+		if(strcmp(name, "default") == 0)
+			snprint(ini, INIPATHLEN, "/lib/pxe/default");
+		else if (strcmp(name, "%E") == 0)
+			snprint(ini, INIPATHLEN, "/lib/pxe/%E", rep.chaddr);
+		else
+			return 0;
+		f->walked = 3;
+		f->path = ini;
 		return 1;
 	}
 	return 0;
--- /sys/src/boot/pc/load.c	Sat Oct 16 06:32:38 2004
+++ /sys/src/boot/pc/load.c	Sat Oct 16 06:32:38 2004
@@ -16,7 +16,7 @@
 	0
 };
 static char *etherinis[] = {
-	"/cfg/pxe/%E",
+	"/lib/pxe/default",
 	0
 };