Little trick to fix the 'warning: setlocale: LC_CTYPE: cannot change locale (en_US.UTF-8): No such file or directory' issue on amazon linux 2 after yum update.
Thanks to this post: thought it is japanese, but the solving trick is the same.
https://nyan.blog/2021/10/11/ec2amazon-linux-2%E3%81%A7%E3%80%8Cyum-update%E3%80%8D%E3%81%97%E3%81%9F%E3%82%89%E3%80%8Cfailed-to-set-locale-defaulting-to-c%E3%80%8D%E3%81%8C%E8%A1%A8%E7%A4%BA%E3%81%95%E3%82%8C%E3%82%8B/
[Description]
After yum update, CLI prompted with following message ,
```
-bash: warning: setlocale: LC_CTYPE: cannot change locale (en_US.UTF-8): No such file or directory
-bash: warning: setlocale: LC_COLLATE: cannot change locale (en_US.UTF-8): No such file or directory
-bash: warning: setlocale: LC_MESSAGES: cannot change locale (en_US.UTF-8): No such file or directory
-bash: warning: setlocale: LC_NUMERIC: cannot change locale (en_US.UTF-8): No such file or directory
-bash: warning: setlocale: LC_TIME: cannot change locale (en_US.UTF-8): No such file or directory
```
and export LC_ALL="en_US.UTF-8" won't work.
-bash: warning: setlocale: LC_ALL: cannot change locale (en_US.UTF-8)
-bash: warning: setlocale: LC_ALL: cannot change locale (en_US.UTF-8)
$ ll /usr/lib/locale/ and you will only find C.utf8
C.utf8
locale-archive.tmpl
$ 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=en_US.UTF-8
LC_CTYPE="en_US.UTF-8"
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=en_US.UTF-8
[How to solve it]
If you are using en_US.UTF-8, following will do:
$sudo localedef -f UTF-8 -i en_US en_US.UTF-8
博文
