The fact that a parmfile is currently needed for a subiquity installation is not ideal and there is a Launchpad bug open to change this: LP 1854513 (https://bugs.launchpad.net/ubuntu/+source/casper/+bug/1854513) You are welcome to join LP 1854513 and to click the green link in the upper area that says "Does this bug affect you?", to express the urgency of that ticket for you, too.
Regarding the DASD that you are using - is it a DASD ECKD or FBA? Based on the size I assume it's a DASD FBA (z/VM EDEV) -- or a 3390 model54? (FBA support is in the works) In case of a DASD ECKD, did you tried to add a VTOC and to (re-)format the disk at the 'Storage configuration' screen? Was the disk used and formatted prior to this installation? ** Changed in: subiquity (Ubuntu) Assignee: Skipper Bug Screeners (skipper-screen-team) => Canonical Foundations Team (canonical-foundations) ** Changed in: ubuntu-z-systems Importance: Undecided => High ** Tags added: installer s390x ** Tags added: rls-ff-incoming -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1878596 Title: [Ubuntu 20.04] - Install - problem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1878596/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs