AS, sorry for the slow reply on my part. Many thanks for your assistance---I'm a relative newcomer to Linux, so a lot of this is still unfamiliar to me. The link you provided --http://www.linuxbsdos.com/2011/07/16/how-to-install-pclinuxos-2011-6-on-an-encrypted-lvm-file-system
-- is one of the references I used in setting up my dual-boot encrypted LVM system.
I did not realize that an updated PCLinuxOS 2011-06 is effectively the same as 2012-02. With that in mind, I have no good reason to reinstall at this point.
That said, I'm still curious about how I would go about reinstalling PCLOS over my existing setup while retaining my existing home partition, if I ever needed to do so. No matter what I try, I cannot seem to get the installer to "see inside" my encrypted Physical Volume (sda5). I tried the change you suggested...
cryptsetup luksOpen /dev/mapper/LV01 LV01crypt
...but to no avail.
I don't know if it helps or not, but below is the basic partition layout of my hard drive:
/dev/sda1 ext2 494.16MB pclos_boot
/dev/sda2 extended 297.27GB
/dev/sda5 crypt-luks 296.80GB
/dev/sda6 ext2 476.00MB ubuntu_boot
The encrypted Physical Volume resides on /dev/sda5. Inside the Physical Volume is a single Volume Group containing five Logical Volumes: one home partition for Ubuntu, one home partition for PCLOS, one root partition for Ubuntu, one root partition for PCLOS, and one Swap partition (used by both operating systems).
Any other thoughts?