Using Red Hat Enterprise Linux virtualization, how do I mount a partition on a file-based storage?

Release Found: Red Hat Enterprise Linux 5 using virtualization

Problem

In Red Hat Enterprise Linux virtualization, a virtual guest system can be installed on a file-based storage. But in some situations (e.g. guest OS cannot boot), one may want to exam the partitions or logical volumes on the file-based storage from the host system.

Solution

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