Thanks for your report. Current implementation validates the username with the same function than linux one and must be changed to follow the restrictions on MS Windows / AD.
Marking as triaged. ** Changed in: ubiquity (Ubuntu) Importance: Undecided => High ** Changed in: ubiquity (Ubuntu) Status: New => Triaged ** Also affects: ubiquity (Ubuntu Impish) Importance: High Status: Triaged ** Changed in: ubiquity (Ubuntu Impish) Assignee: (unassigned) => Jean-Baptiste Lallement (jibel) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1925786 Title: installer of 21.04 not allowing to use dot symbol in AD administrator username To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1925786/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs