creating LVM partitions

[Chris Henderson <henders254 gmail com>]

I'm installing an x86 RHEL 5.3 box using the GUI mode from DVD. I
would like to put all the partitions in LVM. But I'm confused. I
selected /dev/sda and chose LVM for the whole disk - this created a
/dev/sda1 partition. I then went on to create /, /tmp/, /usr - all of
them are in /dev/sda2, /dev/sda3, /dev/sda4 with ext3. Am I on the
right track to creating these partitions under LVM?

Thanks.