Comment 6 for bug 1677139

Found the reason for this failure, installer uses a library on the following path: /usr/lib/x86_64-linux-gnu/softhsm/libsofthsm2.so

This path is not present on default installation of ubuntu with softhsm2.

This is becoming a theme with IPA packaging it seems.
So either make sure there's a symlink for it in the package, or start patching the installer to account for all the differences in paths between RHEL and Ubuntu.