diff --git a/ChangeLog b/ChangeLog
index ea220fa0e..d8ceb9999 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2008-01-21  Robert Millan  <rmh@aybabtu.com>
+
+	* disk/i386/pc/biosdisk.c (grub_biosdisk_iterate): Add debug message
+	on grub_biosdisk_rw_standard() error.
+
 2008-01-21  Robert Millan  <rmh@aybabtu.com>
 
 	* include/grub/ieee1275/ieee1275.h: Add 2008 to Copyright line for
diff --git a/disk/i386/pc/biosdisk.c b/disk/i386/pc/biosdisk.c
index 618ae75e5..eb22e6d05 100644
--- a/disk/i386/pc/biosdisk.c
+++ b/disk/i386/pc/biosdisk.c
@@ -1,6 +1,6 @@
 /*
  *  GRUB  --  GRand Unified Bootloader
- *  Copyright (C) 1999,2000,2001,2002,2003,2004,2005,2006,2007  Free Software Foundation, Inc.
+ *  Copyright (C) 1999,2000,2001,2002,2003,2004,2005,2006,2007,2008  Free Software Foundation, Inc.
  *
  *  GRUB is free software: you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -74,7 +74,10 @@ grub_biosdisk_iterate (int (*hook) (const char *name))
     {
       if (grub_biosdisk_rw_standard (0x02, drive, 0, 0, 1, 1,
 				     GRUB_MEMORY_MACHINE_SCRATCH_SEG) != 0)
-	break;
+	{
+	  grub_dprintf ("disk", "Read error when probing drive 0x%2x\n", drive);
+	  break;
+	}
       
       if (grub_biosdisk_call_hook (hook, drive))
 	return 1;