Duplication due to generated motd.tail

[Julian Tibble]

Binary package hint: libpam-modules

Although I deleted /etc/motd.tail, a recent upgrade using aptitude recreated it (presumably some package's post-install script created it). This is annoying because its contents is as follows:

    $ cat /etc/motd.tail
    Ubuntu 10.04.2 LTS

    Welcome to Ubuntu!
     * Documentation: https://help.ubuntu.com/

This is a duplicate of information printed by the scripts in /etc/update-motd.d/, so some info is printed twice when I log in:

    Linux eventbookingonline 2.6.32.16-linode28 #1 SMP [...snip...]
    Ubuntu 10.04.2 LTS

    Welcome to Ubuntu!
     * Documentation: https://help.ubuntu.com/
    Ubuntu 10.04.2 LTS

    Welcome to Ubuntu!
     * Documentation: https://help.ubuntu.com/
    Last login: [...snip...]

Surely this is wrong: as I understand it, /etc/motd.tail is supposed to be for static content added by the local system-administrator and should not be touched by scripts.

VERSION INFO

    $ lsb_release -rd
    Description: Ubuntu 10.04.2 LTS
    Release: 10.04

    $ apt-cache policy libpam-modules
    libpam-modules:
      Installed: 1.1.1-2ubuntu5.3
      Candidate: 1.1.1-2ubuntu5.3
      Version table:
     *** 1.1.1-2ubuntu5.3 0
            500 http://security.ubuntu.com/ubuntu/ lucid-updates/main Packages
            500 http://security.ubuntu.com/ubuntu/ lucid-security/main Packages
            100 /var/lib/dpkg/status
         1.1.1-2ubuntu2 0
            500 http://us.archive.ubuntu.com/ubuntu/ lucid/main Packages