mysql8.0 lower_case_table_names 大小写敏感设置问题解决

systemctl stop mysqld.service

[root@iZbp19o1a0ypknm0yq2tifZ /]# systemctl stop mysqld.service
[root@iZbp19o1a0ypknm0yq2tifZ /]# rm /var/log/mysqld.log
rm：是否删除普通文件 "/var/log/mysqld.log"？y

[root@iZbp19o1a0ypknm0yq2tifZ /]# cd /var/lib/mysql
[root@iZbp19o1a0ypknm0yq2tifZ mysql]# ls
auto.cnf       binlog.index  ca.pem           client-key.pem     #ib_16384_1.dblwr  ibdata1       #innodb_temp  mysql.ibd           private_key.pem  server-cert.pem  sys       undo_002
binlog.000001  ca-key.pem    client-cert.pem  #ib_16384_0.dblwr  ib_buffer_pool     #innodb_redo  mysql         performance_schema  public_key.pem   server-key.pem   undo_001
[root@iZbp19o1a0ypknm0yq2tifZ mysql]# rm -rf * 
[root@iZbp19o1a0ypknm0yq2tifZ mysql]# ls
[root@iZbp19o1a0ypknm0yq2tifZ mysql]#

rm -rf /var/lib/mysql

cd /var/lib
mkdir mysql

chown -R mysql:mysql mysql

[root@iZbp19o1a0ypknm0yq2tifZ lib]# ll|grep mysql
drwxr-x--x   2 mysql  mysql   4096 2月  28 15:32 mysql
drwxr-x---   2 mysql  mysql   4096 9月  14 02:29 mysql-files
drwxr-x---   2 mysql  mysql   4096 9月  14 02:29 mysql-keyring

mysqld --defaults-file=/etc/my.cnf --initialize --user=mysql --basedir=/var/lib/mysql --datadir=/var/lib/mysql

systemctl start mysqld.service
systemctl status mysqld.service

[root@iZbp19o1a0ypknm0yq2tifZ lib]# cat /var/log/mysqld.log |grep temp
2023-02-28T08:45:48.759373Z 6 [Note] [MY-010454] [Server] A temporary password is 
generated for root@localhost: fzue;+r=9hjP
[root@iZbp19o1a0ypknm0yq2tifZ lib]#

use mysql;
update user set host = '%' where user ='root';
flush privileges;