[Bug 546811] Re: Ubiquity in Lucid beta 1 does not correctly show warning dialog in user-creation step

Dylan Evans floobit at gmail.com
Fri Sep 2 14:26:00 UTC 2011


Still a problem in 11.04.  This prevents Ubuntu from being seriously
considered in some large-scale commercial deployments.  Active Directory
often uses a first.last format for usernames, and if Ubuntu cannot
authenticate against all servers, it will be used less.

This seems to be a policy decision that ensures compatibility with some
programs.  adduser works just fine, and in a level 3 boot, no problems
occur.  If adduser first.last is invoked and a reboot occurs, the gdm
login screen breaks: when any of the available users are clicked, they
perform the expected collapsing visual effect, then reappear.  Further
deletion of the offending user in level three does not unbreak the gdm.
Luckily, I tested this out on a virtual machine, so could revert to an
earlier state with little difficulty, and thus did not exhaustively test
how broken gdm was.

Given that this seems a problem with gnome 2, maybe the solution is just
a quick rewrite of the gdm login script to sanitize the handling of
usernames.  If anyone can show that this problem is solved in gnome 3 or
another windows manager, I'd be interested.

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https://bugs.launchpad.net/bugs/546811

Title:
  Ubiquity in Lucid beta 1 does not correctly show warning dialog in
  user-creation step

Status in “ubiquity” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: ubiquity

  When I try to use a username with "dots" like "name.name", ubiquity
  tries to refuse that, (it seems there is a new policy on username-
  characters compared to karmic which is discussed in other bugs
  anyway), however the warning dialog is only shown very briefly and so
  the user installing the system does not see what actually happens and
  why pressing "Next" does not move on.

  Furthermore the username has the check mark right besides it which
  indicates that it is fine, however the dialog still does not allow to
  enter such a username.

  Steps to reproduce:
  - start installation on hard disc using the Lucid Beta 1 ISO
  - click through to the dialog that allows to create a user
  - try to enter a user name with dots, e.g. "name.name"
  - check how the problem is reported

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