CentOS7 Timezone Setting Timezone search $ sudo timedatectl list-timezones Timezone setting $ sudo timedatectl set-timezone Asia/Seoul OS/CentOS 2019.11.20
CentOS7 이전 커널 삭제 CentOS 7이전 커널 삭제 $ sudo yum install yum-utils $ sudo package-cleanup --oldkernels --count=2 OS/CentOS 2019.11.20