I could recreate and can confirm the same for groovy. If the installation was started with: sudo virt-install --name groovy --memory 2048 --disk path=/dev/disk/by-path/ccw-0.0.1601 --cdrom ./groovy-live-server-s390x.iso the installer uses /dev/vda that is usually an indicator for virtio device rather than a DASD disk (the size of 6.877G is the correct net size of the used DASD Mod9 disk):
▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ Guided storage configuration [ Help ] ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ Configure a guided storage layout, or create a custom one: (X) Use an entire disk [ /dev/vda local disk 6.877G ▾ ] [X] Set up this disk as an LVM group [ ] Encrypt the LVM group with LUKS Passphrase: Confirm passphrase: ( ) Custom storage layout [ Done ] [ Back ] I've added /var/logs and /var/crash. ** Attachment added: "02092020.tgz" https://bugs.launchpad.net/ubuntu-z-systems/+bug/1893775/+attachment/5406927/+files/02092020.tgz ** Changed in: subiquity (Ubuntu) Assignee: Skipper Bug Screeners (skipper-screen-team) => Canonical Foundations Team (canonical-foundations) ** Changed in: ubuntu-z-systems Assignee: (unassigned) => Skipper Bug Screeners (skipper-screen-team) ** Changed in: ubuntu-z-systems Importance: Undecided => Critical ** Changed in: ubuntu-z-systems Status: New => Triaged ** Also affects: subiquity (Ubuntu Groovy) Importance: Undecided Assignee: Canonical Foundations Team (canonical-foundations) Status: New ** Also affects: subiquity (Ubuntu Focal) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1893775 Title: [UBUNTU 20.04.1] Failure to install Ubuntu 20.04.1 as KVM guest on DASD To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1893775/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs