Phillip, I tried to install the most current daily build (2016-01-28) of Ubuntu 16.04 into /home into separate LUKS encrypted volume, this time using QEMU/KVM. The attached screen shot was taken just after the installation failed. On this attempt, the error differs somewhat what I observed when I first submitted the bug report (and from what I have observed on many other attempts). Nonetheless, the effect is the same: Installation does not proceed.
Note that, as can be seen in the attached screen shot, the mke2fs process wasn't running just after the installation failed. You ask why I think that this bug isn't a duplicate of Bug #1361951. I acknowledge that this bug may be related to that bug. And indeed, the bug that I am reporting may very well be a manifestation of whatever error gives rise to that bug. But as far as being a "duplicate" of that bug, I don't think so. For one reason, as I mentioned above, the mke2fs process wasn't running just after the installation failed. But beyond that, the issues reported in Bug #1361951 seems to be hardware dependent, and in many cases aren't reproducible. In contrast, as I mentioned in Comment #64 of Bug #1361951, the bug that I am reporting "is reproducible 100% of the time on every computer that I own as well as on virtualbox and QEMU/KVM." In any case, I don't want to mark this bug as a duplicate until we know more. Also, in addition to preventing a clean installation of /home into separate LUKS encrypted volume, I have noticed that I am unable to upgrade from a working (non-broken) installation of Ubuntu 15.04 in which /home has been previously installed into separate LUKS encrypted volume. I hope that the above is of some help. Best regards, GizmoChicken ** Attachment added: "Screenshot showing that mke2fs process wasn't running just after the installation failed." https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1523194/+attachment/4558836/+files/Screenshot%20from%20failed%20installation.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1523194 Title: Can't install /home into separate LUKS encrypted volume To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1523194/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs