Looks like the fixed installer was already included into the todays ISO: http://cdimage.ubuntu.com/ubuntu-server/xenial/daily/20180731/xenial-server-s390x.iso I can confirm that this works, too (adding a 'pass' to the QA tracker)
** Also affects: ubuntu-z-systems Importance: Undecided Status: New ** Changed in: ubuntu-z-systems Status: New => Fix Released ** Changed in: ubuntu-z-systems Importance: Undecided => Critical -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1784454 Title: kernel panic on booting kernel 4.4 based d-i from 16.04.5 RC image To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1784454/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs