2008-06-07 Pavel Roskin <proski@gnu.org>

* util/biosdisk.c (open_device): Revert last change to the
	function, it broke installation.  The sector needs to be
	different dependent on which device is opened.

util/biosdisk.c

@@ -298,6 +298,9 @@ open_device (const grub_disk_t disk, grub_disk_addr_t sector, int flags)
 
     /* Make the buffer cache consistent with the physical disk.  */
     ioctl (fd, BLKFLSBUF, 0);
+
+    if (is_partition)
+      sector -= disk->partition->start;
   }
 #else /* ! __linux__ */
   fd = open (map[disk->id].device, flags);