ERROR with "Failed to set locale, defaulting to C" on Centos at the docker environment (yum install)

Question

The docker has released a new version of centos 8, so I try to use it with Dockerfile to build a new environment but I got some error message

Dockerfile content

FROM centos
RUN yum install

when I ran the above command, it got an error.

so I am going to the container and try to use a command line to check what is going on, and then I found the error when I try to use the command line "yum install" as the following picture.

Answer 1

This is a good method to handle this issue, please follow the code to install the package "glibc-langpack-en" in your environment or put the command line in your dockerfile.

Dockerfile content

FROM centos
RUN yum install -y glibc-langpack-en

Centos shell script

sudo yum install -y glibc-langpack-en

Answer 2

you should set LANG and LC_ALL/LC_CTYPE variables before run yum update.

export LANG=en_US.UTF-8
export LANGUAGE=en_US.UTF-8
export LC_COLLATE=C
export LC_CTYPE=en_US.UTF-8

Answer 3

#Set

$ export LC_ALL=C

#check

$ printenv | grep LC

LC_ALL=C #Try again

$ sudo yum check

Loaded plugins: fastestmirror, ovl check all

Answer 4

as root user, then do steps:

1. sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
2. sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
3. sudo yum update -y