I think this may actually be a debian-installer problem, but I'll leave it up to the experts to decide.
-- Configure partitions for RAID1, received: The installer needs to remove operating system files from the install target, but was unable to do so. https://bugs.launchpad.net/bugs/198106 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs