20191012 is the only one where this is expected to work, however for other hilarious reasons, you need to boot in the live session, upgrade to ubiquity from eoan-proposed (19.10.20), then run the installer.
This should all be in better shape with tonight's images when we spin them (expected serial of 20191014) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1847927 Title: Upgrading of 20191010 installed on ZFS will lead to "device-mapper: reload ioctl on osprober-linux-sda6 failed: Device or resource busy" and then to auto-removal of all zfs packages To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1847927/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
