Read Encrypted LVM partitions for new install

Is it possible to re-read existing LVM partitions (volumes) from an encrypted LVM volume group at install time (using opensuse 11.2)?

So the full disk encryption using LVM seems to work fine.

However, if at a later stage I want to install a new Os (e.g. opensuse 11.3 :wink: ) I do not want to have to reformat partitions such as /home.

With a straightforward unencrypted partitioning scheme, that is possible. The installer reads the existing partitions and mount points, and reformatting can be specified as necessary.

But if the partitions are done within an LVM Volume group, which is encrypted, this does not seem to be possible, which is a drawback.

Is there a way around this?