[CentOS] centos5.5 text install forcing me to add all disks to LVM volgroup

I ended up going ahead and letting the installer do whatever, then I
removed the logical volume. The howto
(http://tldp.org/HOWTO/LVM-HOWTO/removelv.html) is not so helpful
about helping you figure out what you need to know. Unfortunately I
clobbered my history file & don't really know how I did it.

I'm still not sure whether this process would have clobber3ed the
contents of the disk.
Dave