I found a somewhat simpler workaround for this (17.04 and 17.10): On the "Installation type" screen, I select guided partitioning with luks & lvm. This way the two fields for the passwords appear. Then, I enter my desired password, switch back to manual partitioning, and click next.
This way, when I create the physical volume for encryption, the encrypted volume shows up as expected. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1510731 Title: Bug in ubiquity-frontend-kde: Can't create LUKS encrypted volumes during manual disk setup in Kubuntu 17.10 (does not affect Ubuntu, Ubuntu MATE, or Ubuntu Budgie) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1510731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs