CentOS

1)用命令查看当前使用的语言包：

locale

2)用命令查看服务器当前已安装的语言包：

locale -a

3)查看查询结果中是否有zh_CN，如果没有，则需要安装

yum install kde-l10n-Chinese

4)永久性设置

localectl set-locale LANG=zh_CN.UTF-8


Debian

系统环境

root@debian:~# cat /etc/os-release 
PRETTY_NAME="Debian GNU/Linux 11 (bullseye)"
NAME="Debian GNU/Linux"
VERSION_ID="11"
VERSION="11 (bullseye)"
VERSION_CODENAME=bullseye
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"
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安装

安装locales包（如果尚未安装）：

sudo apt-get update  
sudo apt-get install locales
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安装完locales包后，需要重新生成locale数据

编辑/etc/locale.gen文件，将 zh_CN.UTF-8 前面的注释（#）移除

vi /etc/locale.gen
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运行sudo locale-gen来生成这些locale

root@debian:/# sudo locale-gen
Generating locales (this might take a while)...
  zh_CN.UTF-8... done
Generation complete.
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设置默认locale：

编辑/etc/default/locale文件，设置LANG为 zh_CN.UTF-8。

vi /etc/default/locale
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#  File generated by update-locale
LANG="zh_CN.UTF-8"
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重新登录或重启：

为了使新的locale设置生效，您可能需要注销并重新登录或重启系统。

再次尝试重新配置locales（如果需要）：

如果您之前试图运行sudo dpkg-reconfigure locales，但失败了，那么在完成上述步骤后，您可以再次尝试这个命令。


问题

locales is not installed
root@debian:/opt/mysql/openssl-1.1.1w# sudo dpkg-reconfigure locales
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
        LANGUAGE = (unset),
        LC_ALL = (unset),
        LANG = "zh_CN.UTF-8"
    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
dpkg-query: package 'locales' is not installed and no information is available
Use dpkg --info (= dpkg-deb --info) to examine archive files.
/usr/sbin/dpkg-reconfigure: locales is not installed
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解决

运行sudo apt-get install locales


Cannot set LC_CTYPE to default locale: No such file or directory
Cannot set LC_MESSAGES to default locale: No such file or directory
Cannot set LC_ALL to default locale: No such file or directory
root@debian:/# locale
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
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解决

运行sudo locale-gen来生成这些locale