Description of problem:
The mount command used in rescue mode doesn't support the use of disk
labels. This is a hassle for customers who (if anaconda can't find
their install) need to manually look inside each of their partitions
to identify them.

Version-Release number of selected component (if applicable):
0.60.5-8

How reproducible:
Always

Steps to Reproduce:
1.Rescue system where anaconda can't find the hard disk
2.Attempt to mount a partition using the obvious method
  
Actual results:
mount complains that the block device must be used. Customers must
manually mount and identify each of their filesystems until they find
the appropriate partition.

Expected results:
Busybox should be able to use disklabels just as the real mount can.

Additional info: