Are you installing using UEFI boot or BIOS boot? At the moment, with UEFI it is not possible to install /boot on RAIDed device, but it is possible to have / mountpoint on the mdadm raid.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1847834 Title: Eaon Ermine Live Server can not create mirrored root To manage notifications about this bug go to: https://bugs.launchpad.net/subiquity/+bug/1847834/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs