[falko]

This seems to be the same error I describe in my Xen tutorial: http://www.howtoforge.com/perfect_xe...ian_ubuntu_p4:

Now we set up our locales. If we do not do this now, we will see some ugly warnings during base-config like these:

perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
        LANGUAGE = "en_DE:en_US:en_GB:en",
        LC_ALL = (unset),
        LANG = "en_US"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory

They are not serious, but ugly... So we run

apt-get install localeconf

Select locales to install (e.g. en_US ISO-8859-1) and select the standard locale (e.g. en_US).

You will be asked a few questions:

Manage locale configuration files with debconf? <-- Yes
Environment settings that should override the default locale: <-- do not select anything
Replace existing locale configuration files? <-- Yes
Default system locale: <-- e.g. en_US ISO-8859-1

So I guess running

apt-get install localeconf

might be a good idea.