mysql 升级
# 备份数据库数据
mysqldump -u root -p --single-transaction --all-databases > backup20240830.sql;
# 备份mysql数据目录：
cp -r /data/mysql mysql20240902
# 备份mysql配置文件my.cnf
cp -r /etc/my.cnf my.cnf20240902
systemctl stop mysqld
tar -xvf mysql-8.0.37-1.el7.x86_64.rpm-bundle.tar
rpm -Uvh mysql-community-common-8.0.37-1.el7.x86_64.rpm --nodeps
rpm -Uvh mysql-community-libs-8.0.37-1.el7.x86_64.rpm --nodeps
rpm -Uvh mysql-community-client-8.0.37-1.el7.x86_64.rpm --nodeps
rpm -Uvh mysql-community-server-8.0.37-1.el7.x86_64.rpm --nodeps
chown mysql:mysql my.cnf
chown mysql:mysql my.cnf.d
原文地址：https://blog.csdn.net/lengdaochuqiao/article/details/143484997
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