Fixes from mike, to better format the output of rc.blobs.

This including redirecting Frisbee output to a logfile.

tmcd/common/config/rc.blobs

@@ -98,9 +98,9 @@ sub doboot()
     my $errors = 0;
     my $need_mkextrafs = 1;
 
-    if (-e "/var/emulab/boot/rc.blobs-ran") {
-	print STDOUT "Blobs installation already ran on this node.\n";
-	print STDOUT "  Remove /var/emulab/boot/rc.blobs-ran to run again.\n";
+    if (-e "$BOOTDIR/rc.blobs-ran") {
+	print STDOUT "  Blobs installation already done.\n";
+	print STDOUT "  (Remove $BOOTDIR/rc.blobs-ran to run again.)\n";
 	exit 0;
     }
 
@@ -112,6 +112,7 @@ sub doboot()
     return
 	if (! @blobs);
 
+    unlink("$LOGDIR/blobs.log");
     foreach my $blob (@blobs) {
 	eval {
 	    ($mcastaddr, $portnum, undef, $basename, $dest) = 
@@ -120,14 +121,15 @@ sub doboot()
 
 	    # FIXME: Make sure $basename doesn't exist...
 	    my $local_path = "/var/tmp/$basename";
-	    my $frisbee_cmd = "$FRISBEE -p $portnum -m $mcastaddr $local_path";
+	    my $frisbee_cmd = "$FRISBEE -p $portnum -m $mcastaddr $local_path".
+		              " >>$LOGDIR/blobs.log 2>&1";
 
 	    if ($dest =~ /^\/local/ && $need_mkextrafs) {
 		os_mountextrafs("/local");
 		$need_mkextrafs = 0;
 	    }
 
-	    print STDOUT "Fetching blob $basename to $local_path and unpacking to $dest\n";
+	    print STDOUT "  Downloading blob $basename to $local_path\n";
 
 	    #print STDOUT "$frisbee_cmd\n";
 	    # launch frisbee
@@ -135,11 +137,13 @@ sub doboot()
 		die "Frisbee failed\n";
 	    }
 
-	    my $unpack_cmd = "$TARINSTALL -f $dest $local_path";
+	    print STDOUT "  Unpacking to $dest\n";
+	    my $unpack_cmd = "$TARINSTALL -f $dest $local_path".
+		             " >>$LOGDIR/blobs.log 2>&1";
 	    #print STDOUT "$unpack_cmd\n";
 	    if (system($unpack_cmd)) {
 		if ($? >> 8 == 255) {
-		    die "Tarinstall failed\n";
+		    die "Tarinstall failed (see $LOGDIR/blobs.log)\n";
 		}
 	    }
 
@@ -154,7 +158,7 @@ sub doboot()
     }
     
     if (!$errors) {
-	system("touch /var/emulab/boot/rc.blobs-ran");
+	system("touch $BOOTDIR/rc.blobs-ran");
     }
 
     exit($errors);