解决perl: warning: Setting locale failed.

在Ubuntu Server 12.04上执行apt-get install命令时，报如下warning

 

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perl: warning: Setting locale failed. perl: warning: Please check that your locale settings:         LANGUAGE = "zh_CN:zh",         LC_ALL = (unset),         LC_TIME = "zh_CN",         LC_MONETARY = "zh_CN",         LC_ADDRESS = "zh_CN",         LC_TELEPHONE = "zh_CN",         LC_NAME = "zh_CN",         LC_MEASUREMENT = "zh_CN",         LC_IDENTIFICATION = "zh_CN",         LC_NUMERIC = "zh_CN",         LC_PAPER = "zh_CN",         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

搜了一下解决办法，参考这篇文章，在家目录下

 

1	$ vi .bashrc

在文件尾加入

 

1	export LC_ALL=C

保存后执行

 

1	$ source .bashrc

问题解决。

为什么这么做？

看了这篇文章了解了下locale，上面报的warning意思大概可以归纳为

• LC_ALL变量的值unset
• LC_CTYPE和LC_MESSAGES的值设置的可能有问题

先将原来添加到.bashrc中的“export LC_ALL=C”删除，重启客户端会话，恢复系统到一开始的状态

su到root查看系统locale设置

 

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$ su - root # 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 LANG=zh_CN.UTF-8 LANGUAGE=zh_CN:zh LC_CTYPE="zh_CN.UTF-8" LC_NUMERIC=zh_CN LC_TIME=zh_CN LC_COLLATE="zh_CN.UTF-8" LC_MONETARY=zh_CN LC_MESSAGES="zh_CN.UTF-8" LC_PAPER=zh_CN LC_NAME=zh_CN LC_ADDRESS=zh_CN LC_TELEPHONE=zh_CN LC_MEASUREMENT=zh_CN LC_IDENTIFICATION=zh_CN LC_ALL=

查看系统已安装的locale

 

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# locale -a 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_COLLATE to default locale: No such file or directory C C.UTF-8 POSIX en_US.utf8 zh_CN zh_CN.gb2312

定位错误为 (1) LC_ALL没设置值，(2) LC_CTYPE和LC_MESSAGES的值zh_CN.UTF-8系统未安装

1、设置LC_ALL的值为zh_CN.UTF-8

 

1	# vi /etc/default/locale

2、执行

 

1 2	# cd /usr/share/locales # ./install-language-pack zh_CN

安装这个locale

问题解决。

正如这篇文章所说，LC_ALL的优先级最高，所以不执行步骤1只执行步骤2就可以解决问题。另外，为了避免locale设置成zh_CN可能带来的稀奇古怪的错误，我直接将/etc/default/locale文件从这样

 

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LANG="zh_CN.UTF-8" LANGUAGE="zh_CN:zh" LC_NUMERIC="zh_CN" LC_TIME="zh_CN" LC_MONETARY="zh_CN" LC_PAPER="zh_CN" LC_NAME="zh_CN" LC_ADDRESS="zh_CN" LC_TELEPHONE="zh_CN" LC_MEASUREMENT="zh_CN" LC_IDENTIFICATION="zh_CN"

设置成这样

 

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LANG="zh_CN.UTF-8" LANGUAGE="zh_CN:zh" LC_NUMERIC="zh_CN.UTF-8" LC_TIME="zh_CN.UTF-8" LC_MONETARY="zh_CN.UTF-8" LC_PAPER="zh_CN.UTF-8" LC_NAME="zh_CN.UTF-8" LC_ADDRESS="zh_CN.UTF-8" LC_TELEPHONE="zh_CN.UTF-8" LC_MEASUREMENT="zh_CN.UTF-8" LC_IDENTIFICATION="zh_CN.UTF-8"