echo "xxx" >/etc/hostname
hostname -F /etc/hostname


cat /etc/locale.conf
LANG="zh_CN.UTF-8"
LANG="en_US.UTF-8"

yum install -y virt-what
yum install -y net-tools.x86_64


/etc/selinux/config

yum安装
# 安装EPEL源
yum install epel-release 
# 安装python36、pip36
yum install python36 python36-pip
# virtualenv
pip3.6 install virtualenv -i https://mirrors.ustc.edu.cn/pypi/web/simple/

python3 -m pip install --upgrade pip

resize2fs /dev/vdc

mkfs.ext4 /dev/vdb
mount /dev/vdb /data
echo "/dev/vdb  /data                   ext4    defaults        0 0" >>/etc/fstab

/usr/lib/systemd/system/
systemctl is-enabled mysql.service
systemctl daemon-reload