So you picked the right image and installer '20.04.1' (live installer), since you got interactively promped at the console for the basic network configuration information, indicated by: "Attempt interactive netboot from a URL?" (and the following questions), great! (The 20.04 image does not have this, but is superseeded by the 20.04.1 image anyway ...)
Looks like some more information/clarification about the DNS configuration option at this early stage of the installation is needed. At this stage of the installaton it's about making sure that the installer is able to find and reach the image file (ISO). Hence, either an external DNS is needed, in case you point to the external location of the installation image at http://cdimage.ubuntu.com (it's the default), or an internal DNS is needed in case the installation is based on a local install server (or maybe even none). Internal install servers are pretty often used in IBM Z and LinuxONE customer environments and would of course also require that an URL, other than the default is specified, that points to your local install server. So far pristine DASDs (DASDs that were never used before and are therefor not yet low-level formatted) need to be manually formatted in the (live installer) shell - for now - like I suggested in comment #21 and like you now successfully did. This is a known bug that is currently look at and is btw. addressed in this separate LP ticket: LP 1887669 - "subiquity on s390x doesn't handle pristine DASD disks that need an initial low-level format" (https://bugs.launchpad.net/bugs/1887669) (Btw. you are welcome to click the link - roughly at the upper/left at LP 1887669 - that this bug affects you too.) I'm happy to see that the installation now worked for you (with this little workaround of manually calling dasdfmt at the shell) - since it tells me that the somewhat special 3390-ModA EAV and EAV-II DASDs (like your 3390 MOD60 - configured as a multiple of 60 of a 3390 MOD1) generally work! Just reiterating on Steve's comment: - The the legacy d-i 20.04 image (mentioned earlier) is still available, but will not be updated anymore - If you think that it should be possible to specify more (network, but also other) configuration information or if more clarity is needed, please let us know. -- 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
