提示出现大量问号的解决办法

ERROR with “Failed to set locale, defaulting to C” on Centos

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