diff --git a/03.数据库/01.Mysql.md b/03.数据库/01.Mysql.md
index c961267..466c527 100644
--- a/03.数据库/01.Mysql.md
+++ b/03.数据库/01.Mysql.md
@@ -2932,7 +2932,7 @@ select * from t1 where id>2000;
 
 ```shell
 #得到按照时间排序的前10条里面含有左连接的查询语句
-$PATH/mysqldumpslow -s t -t 10 -g "left join" /database/mysql/slow-log
+[root@localhost ~]# mysqldumpslow -s t -t 10 -g "left join" /database/mysql/slow-log
 ```
 
 ### 14.5.3 第三方慢日志分析工具-Percona
@@ -3368,14 +3368,20 @@ Xtrabackup 是由 Percona 公司开源的一款 MySQL 物理热备份工具，
 - Xtrabackup安装
 
 ```shell
-yum -y install epel-release
-#安装epel源
-yum -y install perl perl-devel libaio libaio-devel perl-Time-HiRes perl-DBD-MySQL
-#安装依赖
-wget httpss://www.percona.com/downloads/XtraBackup/Percona-XtraBackup-2.4.4/binary/redhat/6/x86_64/percona-xtrabackup-24-2.4.4-1.el6.x86_64.rpm
-#下载Xtrabackup
-yum localinstall -y percona-xtrabackup-24-2.4.4-1.el6.x86_64.rpm
-# 安装
+# 下载并安装Percona官方仓库配置包（适配RHEL/CentOS 8+）
+yum install -y https://repo.percona.com/yum/percona-release-latest.noarch.rpm
+
+# 启用xtrabackup 2.4仓库（默认可能禁用，需显式开启）
+percona-release enable-only tools release
+# 刷新yum缓存，加载新仓库信息
+yum clean all && yum makecache
+
+# 直接安装，yum会自动匹配系统版本并安装所有依赖
+yum install -y percona-xtrabackup-24
+
+# 查看版本，确认安装成功
+xtrabackup --version
+# 预期输出：xtrabackup version 2.4.xx based on MySQL server 5.7.xx (Linux (x86_64))
 ```
 
 - 备份方式（物理备份）