File 0014-fix-booting-without-vga.patch of Package grub

--- a/efi/graphics.c    2014-08-28 09:43:41.855973525 -0500
+++ b/efi/graphics.c    2014-08-28 09:47:57.162973491 -0500
@@ -370,13 +370,15 @@
 
     text = graphics_get_text_buf();
     linesz = screensz.x * sizeof (text[0]);
-    for (i = 1; i < screensz.y; i++) {
-        unsigned short *prev = &text[(i-1) * screensz.x];
-        unsigned short *this = prev + screensz.x;
-
-        memmove(prev, this, linesz);
-        prev = this;
-        this += screensz.x;
+    if (text) {
+        for (i = 1; i < screensz.y; i++) {
+            unsigned short *prev = &text[(i-1) * screensz.x];
+            unsigned short *this = prev + screensz.x;
+
+            memmove(prev, this, linesz);
+            prev = this;
+            this += screensz.x;
+        }
     }
     graphics_setxy(0, screensz.y - 1);
     for (i = 0; i < screensz.x; i++) {
@@ -420,9 +422,11 @@
 
     graphics_get_screen_rowscols(&screensz);
     text = graphics_get_text_buf();
-    for (y = 0; y < screensz.y; y++)
+    if (text) {
+        for (y = 0; y < screensz.y; y++)
             for (x = 0; x < screensz.x; x++)
                 text[x + y * screensz.x] = ' ';
+    }
 
     if (backend) {
         //int xy = graphics_getxy();
@@ -551,6 +555,7 @@
         }
         backend->graphics = NULL;
     }
+    backend = 0;
     grub_free(graphics->text);
     grub_free(graphics);
     return 0;