[Bug 229699] Re: "setting locale failed" if using other keyboard layout then language

[Daniel Kulesz]

On my 12.04 installation the "locale-gen" workaround does not seem to
work anymore. I tried regenerating all locales but I always end up with
the following when running a command like perl:

perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
        LANGUAGE = "en_US:en",
        LC_ALL = (unset),
        LC_PAPER = "a4",
        LANG = "en_US.UTF-8"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

I used the alternative-ISO for installing and as written previously it
asked me which locale I wanted to use, but it does not seem to work
anymore as it did in 11.10 and 11.04.

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https://bugs.launchpad.net/bugs/229699

Title:
  "setting locale failed" if using other keyboard layout then language

Status in “debian-installer” package in Ubuntu:
  Confirmed

Bug description:
  I am experiencing this problem since the very early days I began using
  Ubuntu (4.10), and it's still there in 8.04. I get the following
  messages on a clean, fresh installation when running i.e. perl-
  version:

  perl: warning: Setting locale failed.
  perl: warning: Please check that your locale settings:
          LANGUAGE = (unset),
          LC_ALL = (unset),
          LC_CTYPE = "de_DE at euro",
          LANG = "en_US.UTF-8"
      are supported and installed on your system.
  perl: warning: Falling back to the standard locale ("C").

  The problem only happens if you choose a different keyboard layout
  than the language. In my case, I want to have everything in English
  but I am using a german keyboard layout. I guess this problem is
  related to the installer, since it does not generate the correct
  locales.

  Here is some output from just running "locale":

  locale: Cannot set LC_CTYPE to default locale: No such file or directory
  locale: Cannot set LC_ALL to default locale: No such file or directory
  LANG=en_US.UTF-8
  LC_CTYPE=de_DE at euro
  LC_NUMERIC="en_US.UTF-8"
  LC_TIME="en_US.UTF-8"
  LC_COLLATE="en_US.UTF-8"
  LC_MONETARY="en_US.UTF-8"
  LC_MESSAGES="en_US.UTF-8"
  LC_PAPER="en_US.UTF-8"
  LC_NAME="en_US.UTF-8"
  LC_ADDRESS="en_US.UTF-8"
  LC_TELEPHONE="en_US.UTF-8"
  LC_MEASUREMENT="en_US.UTF-8"
  LC_IDENTIFICATION="en_US.UTF-8"
  LC_ALL=

  And here's the output from "locale -a":

  locale: Cannot set LC_CTYPE to default locale: No such file or directory
  C
  en_US.utf8
  POSIX

  As you can see, the de_DE at euro locale simply did not get generated.
  Seems like other people
  (http://forums.vpslink.com/showthread.php?t=286,
  http://ubuntuforums.org/showthread.php?t=159177) experienced this
  problem as well. The solution here is simply to generate this missing
  locale:

  locale-gen de_DE at euro

  But actually the "normal human being" would be happy if the installer
  would have done this for him/her already.

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