This is a known missing feature in ubiquity (the live CD installer), thus I mark this as a duplicate. You need to use the alternate CD for installing with LVM volumes.
Alternatively, just install Ubuntu without a separate /home partition and set up LVM after the installation.
This is a known missing feature in ubiquity (the live CD installer), thus I mark this as a duplicate. You need to use the alternate CD for installing with LVM volumes.
Alternatively, just install Ubuntu without a separate /home partition and set up LVM after the installation.