diff --git a/share/examples/cube/Makefile b/share/examples/cube/Makefile
index 9e84e58..e576ed9 100644
--- a/share/examples/cube/Makefile
+++ b/share/examples/cube/Makefile
@@ -1,5 +1,10 @@
 PROG    = all backlight cube demo
-OBJS    = gpio.o
+
+# Duinomite board
+#OBJS    = duinomite.o
+
+# Fubarino board
+OBJS    = fubarino.o
 
 all:    $(PROG)
 
diff --git a/share/examples/cube/Makefile-host b/share/examples/cube/Makefile-host
index 044af79..216eaa4 100644
--- a/share/examples/cube/Makefile-host
+++ b/share/examples/cube/Makefile-host
@@ -6,8 +6,8 @@ LIBS            += -lm
 
 #all:           demo
 
-demo:           demo.o gpio.o
-		${CC} ${LDFLAGS} -o demo.elf demo.o gpio.o ${LIBS}
+demo:           demo.o fubarino.o
+		${CC} ${LDFLAGS} -o demo.elf demo.o fubarino.o ${LIBS}
 		${OBJDUMP} -S demo.elf > demo.dis
 		${SIZE} demo.elf
 		${ELF2AOUT} demo.elf $@
diff --git a/share/examples/cube/gpio.c b/share/examples/cube/duinomite.c
similarity index 87%
rename from share/examples/cube/gpio.c
rename to share/examples/cube/duinomite.c
index 5650f84..fdedadb 100644
--- a/share/examples/cube/gpio.c
+++ b/share/examples/cube/duinomite.c
@@ -112,7 +112,7 @@ void gpio_plane(unsigned char *data)
     int i, n, val;
 
     /* Send 8 bytes of tada to shift registers. */
-    for (i=0; i<8; i++) {
+    for (i=0; i<8; i+=2) {
         val = *data++;
         for (n=0; n<8; n++) {
             /* SDI signal at RE5. */
@@ -127,5 +127,19 @@ void gpio_plane(unsigned char *data)
 
             val <<= 1;
         }
+        val = *data++;
+        for (n=0; n<8; n++) {
+            /* SDI signal at RE5. */
+            if (val & 1)
+                ioctl(gpio, GPIO_PORTE | GPIO_SET, 1 << 5);
+            else
+                ioctl(gpio, GPIO_PORTE | GPIO_CLEAR, 1 << 5);
+
+            /* CLK signal at RE6. */
+            ioctl(gpio, GPIO_PORTE | GPIO_SET, 1 << 6);
+            ioctl(gpio, GPIO_PORTE | GPIO_CLEAR, 1 << 6);
+
+            val >>= 1;
+        }
     }
 }
diff --git a/share/examples/cube/fubarino.c b/share/examples/cube/fubarino.c
new file mode 100644
index 0000000..022da48
--- /dev/null
+++ b/share/examples/cube/fubarino.c
@@ -0,0 +1,143 @@
+/*
+ * Interface to LED cube 8x8x8.
+ * The cube is connected to pins 4-13 of Fubarino board.
+ *
+ * Pin  PIC32  Function
+ * ---------------
+ *  4   RD0    Y0  \
+ *  5   RC13   Y1  | Layer select
+ *  6   RC14   Y2  /
+ *  7   RD1    Y3  - Upper backlignt
+ *  8   RD2    Y4  - Lower backlight
+ *  9   RD3    SDI - Serial data   \
+ *  10  RD4    CLK - Clock         | to shift registers
+ *  11  RD5    /LE - Latch enable  |
+ *  12  RD6    /OE - Output enable /
+ *  13  RD7    EXT - Unknown
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/ioctl.h>
+#include <sys/gpio.h>
+#include "cube.h"
+
+static int gpio;
+
+void gpio_init()
+{
+    char *devname = "/dev/porta";
+
+    /* Open GPIO driver. */
+    gpio = open(devname, 1);
+    if (gpio < 0) {
+        perror(devname);
+        exit(-1);
+    }
+
+    /* Configure pins RD0-RD7, RC13 and RC14 as output. */
+    ioctl(gpio, GPIO_PORTD | GPIO_CONFOUT, 0xff);
+    ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 0xff);
+    ioctl(gpio, GPIO_PORTC | GPIO_CONFOUT, 3 << 13);
+    ioctl(gpio, GPIO_PORTC | GPIO_CLEAR, 3 << 13);
+}
+
+void gpio_ext(int on)
+{
+    /* EXT signal at RD7. */
+    if (on)
+        ioctl(gpio, GPIO_PORTD | GPIO_SET, 1 << 7);
+    else
+        ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 1 << 7);
+}
+
+void gpio_oe(int active)
+{
+    /* /OE signal at RD6, active low. */
+    if (active)
+        ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 1 << 6);
+    else
+        ioctl(gpio, GPIO_PORTD | GPIO_SET, 1 << 6);
+}
+
+void gpio_le(int active)
+{
+    /* /LE signal at RD5, active low. */
+    if (active)
+        ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 1 << 5);
+    else
+        ioctl(gpio, GPIO_PORTD | GPIO_SET, 1 << 5);
+}
+
+void gpio_backlight_upper(int on)
+{
+    /* Y4 signal at RD2. */
+    if (on)
+        ioctl(gpio, GPIO_PORTD | GPIO_SET, 1 << 2);
+    else
+        ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 1 << 2);
+}
+
+void gpio_backlight_lower(int on)
+{
+    /* Y3 signal at RD1. */
+    if (on)
+        ioctl(gpio, GPIO_PORTD | GPIO_SET, 1 << 1);
+    else
+        ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 1 << 1);
+}
+
+void gpio_layer(int z)
+{
+    /* Y0-Y2 signals at RD0, RC13, RC14. */
+    if (z & 1)
+        ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 1 << 0);
+    else
+        ioctl(gpio, GPIO_PORTD | GPIO_SET, 1 << 0);
+
+    if (z & 2)
+        ioctl(gpio, GPIO_PORTC | GPIO_CLEAR, 1 << 13);
+    else
+        ioctl(gpio, GPIO_PORTC | GPIO_SET, 1 << 13);
+
+    if (z & 4)
+        ioctl(gpio, GPIO_PORTC | GPIO_CLEAR, 1 << 14);
+    else
+        ioctl(gpio, GPIO_PORTC | GPIO_SET, 1 << 14);
+}
+
+void gpio_plane(unsigned char *data)
+{
+    int i, n, val;
+
+    /* Send 8 bytes of tada to shift registers. */
+    for (i=0; i<8; i+=2) {
+        val = *data++;
+        for (n=0; n<8; n++) {
+            /* SDI signal at RD3. */
+            if (val & 0x80)
+                ioctl(gpio, GPIO_PORTD | GPIO_SET, 1 << 3);
+            else
+                ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 1 << 3);
+
+            /* CLK signal at RD4. */
+            ioctl(gpio, GPIO_PORTD | GPIO_SET, 1 << 4);
+            ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 1 << 4);
+
+            val <<= 1;
+        }
+        val = *data++;
+        for (n=0; n<8; n++) {
+            /* SDI signal at RD3. */
+            if (val & 1)
+                ioctl(gpio, GPIO_PORTD | GPIO_SET, 1 << 3);
+            else
+                ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 1 << 3);
+
+            /* CLK signal at RD4. */
+            ioctl(gpio, GPIO_PORTD | GPIO_SET, 1 << 4);
+            ioctl(gpio, GPIO_PORTD | GPIO_CLEAR, 1 << 4);
+
+            val >>= 1;
+        }
+    }
+}
diff --git a/tools/fsutil/fsutil.c b/tools/fsutil/fsutil.c
index 86a4654..8b6ad24 100644
--- a/tools/fsutil/fsutil.c
+++ b/tools/fsutil/fsutil.c
@@ -825,7 +825,7 @@ int main (int argc, char **argv)
         return -1;
     }
     if (! fs_open (&fs, argv[i], (add + mount != 0), pindex)) {
-        fprintf (stderr, "%s: cannot open\n", argv[i]);
+        fprintf (stderr, "%s: cannot open filesystem\n", argv[i]);
         return -1;
     }