На една машинка с Debian се прецакал локала и не може да се пише на UTF дори и като се експортне "export LC_ALL=bg_BG.utf-8". Ето какво ми вади когато искам да го reconf:

mashinka:/# dpkg-reconfigure locales
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = "en_US:en_GB:en",
LC_ALL = "bg_BG.utf-8",
LANG = "bg_BG"
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
/usr/sbin/dpkg-reconfigure: locales is broken or not fully installed

Ето го и решението:

apt-get update && apt-get --reinstall install locales

И чак сега вече реконф локалите.

dpkg-reconfigure locales