[Bug 2070278] Re: selected language doesn't prompt missing language support after the offline installation

[Sebastien Bacher]

Thank you for your bug report, indeed it's the language-selector that
should prompt for that after installation

** Project changed: ubuntu-desktop-provision => language-selector
(Ubuntu)

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https://bugs.launchpad.net/bugs/2070278

Title:
  selected language doesn't prompt missing language support after the
  offline installation

Status in language-selector package in Ubuntu:
  New

Bug description:
  When the installer was run without an internet connection, selected
  language during the installation may miss the language support
  packages (as expected). In the previous installer (or previous
  versions of Ubuntu), the language-selector prompted missing language
  support after the initial installation so users had a chance to
  install those once the system is connected to the internet. However,
  it's no longer the case with the new installer (or the new Ubuntu
  versions).

  How to reproduce:

  1. Launch ubuntu-24.04-desktop-amd64.iso
  2. Close the installer
  3. Refresh the snap first
     $ sudo snap refresh ubuntu-desktop-bootstrap
  4. [for the offline case] Disconnect from the network
  5. Re-launch the installer
  6. Select a language other than English, e.g. Japanese(日本語)
  7. Continue the installation with default options
  8. Reboot

  
  Check the locale and the language support:

  [online]

  $ locale
  LANG=ja_JP.UTF-8
  LANGUAGE=
  LC_CTYPE="ja_JP.UTF-8"
  LC_NUMERIC="ja_JP.UTF-8"
  LC_TIME="ja_JP.UTF-8"
  LC_COLLATE="ja_JP.UTF-8"
  LC_MONETARY="ja_JP.UTF-8"
  LC_MESSAGES="ja_JP.UTF-8"
  LC_PAPER="ja_JP.UTF-8"
  LC_NAME="ja_JP.UTF-8"
  LC_ADDRESS="ja_JP.UTF-8"
  LC_TELEPHONE="ja_JP.UTF-8"
  LC_MEASUREMENT="ja_JP.UTF-8"
  LC_IDENTIFICATION="ja_JP.UTF-8"
  LC_ALL=

  $ check-language-support
  <empty>

  $ check-language-support -l ja
  <empty>

  -> expected as all language support is installed through the internet
  connection in the installation phase

  
  [offline]

  $ locale
  LANG=ja_JP.UTF-8
  LANGUAGE=
  LC_CTYPE="ja_JP.UTF-8"
  LC_NUMERIC="ja_JP.UTF-8"
  LC_TIME="ja_JP.UTF-8"
  LC_COLLATE="ja_JP.UTF-8"
  LC_MONETARY="ja_JP.UTF-8"
  LC_MESSAGES="ja_JP.UTF-8"
  LC_PAPER="ja_JP.UTF-8"
  LC_NAME="ja_JP.UTF-8"
  LC_ADDRESS="ja_JP.UTF-8"
  LC_TELEPHONE="ja_JP.UTF-8"
  LC_MEASUREMENT="ja_JP.UTF-8"
  LC_IDENTIFICATION="ja_JP.UTF-8"
  LC_ALL=

  
  $ check-language-support 
  <empty>

  $ check-language-support -l ja
  fonts-noto-cjk-extra gnome-user-docs-ja ibus-mozc language-pack-gnome-ja language-pack-ja

  -> two output should be identical so the language selector can suggest
  installing those missing packages. Otherwise, users may not know those
  packages including language packs are available.

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