If you upgrade your system, redHat 6.1 will crash if the
installer encounters an NTFS partition before it finds your
root partition, (I have an NTFS partition on /dev/sdb5 and
my root is /dev/sdb6, for example).

The bug is in /misc/src/anaconda/balkan/dos.c, where
you guys forgot a "break" instruction after line 141:

	    switch (table->parts[i].type) {
	      case 0x01:
	      case 0x04:
	      case 0x06:
	      case 0x0b:
	      case 0x0c:
	      case 0x0e:
	      case 0x0f:
		table->parts[i].type = BALKAN_PART_DOS;
		break;

	      case 0x7:
		table->parts[i].type = BALKAN_PART_NTFS;
+               break;    // <<<<<<<<<<<<<<< add this!

	      case 0x83:
		table->parts[i].type = BALKAN_PART_EXT2;
		break;