MySQL installation under CentOS

First, check the environment

# Toggle Root Permissions

Su Root

# check if MySQL rpm-qa|grep mysql # has been installed remove all MySQL yum-y remove mysql*

1. Upload files to software directory, unzip and modify the folder name to MySQL

2. Create user and user groups and assign user group permissions to MySQL folder

2.1 See if there are MySQL users and user groups

cat/etc/passwd

Cat/etc/group

2.2 Adding a user group

Groupadd MySQL

Useradd-r-G MySQL MySQL

2.3 Assigning permissions to user groups

3. Run mysql_install_db script, initialize MySQL data directory and grant table

scripts/mysql_install_db--user=mysql

MySQL installation under CentOS