Installing Percona XtraBackup on Red Hat Enterprise Linux and CentOS
下面我测试的环境为CentOS Linux release 7.2.1511 (Core) ，安装Percona XtraBackup 2.4为例：
步骤1： Install the Percona repository
[test@mylnx06 ~]$ sudo yum install https://www.percona.com/downloads/percona-release/RedHat/latest/percona-release-0.1-4.noarch.rpm [sudo] password for test: /usr/local/bin/aad-login failed: exit code 1 Loaded plugins: fastestmirror, langpacks percona-release-0.1-4.noarch.rpm | 6.4 kB 00:00 Examining /var/tmp/yum-root-02R3Gm/percona-release-0.1-4.noarch.rpm: percona-release-0.1-4.noarch Marking /var/tmp/yum-root-02R3Gm/percona-release-0.1-4.noarch.rpm to be installed Resolving Dependencies --> Running transaction check ---> Package percona-release.noarch 0:0.1-4 will be installed --> Finished Dependency Resolution Dependencies Resolved ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: percona-release noarch 0.1-4 /percona-release-0.1-4.noarch 5.8 k Transaction Summary ================================================================================ Install 1 Package Total size: 5.8 k Installed size: 5.8 k Is this ok [y/d/N]: y Downloading packages: Running transaction check Running transaction test Transaction test succeeded Running transaction Warning: RPMDB altered outside of yum. Installing : percona-release-0.1-4.noarch 1/1 Verifying : percona-release-0.1-4.noarch 1/1 Installed: percona-release.noarch 0:0.1-4 Complete!
RHEL/Centos 5不支持从远程位置直接安装软件包，因此您需要首先下载软件包，然后用rpm手动安装
$ wget \ percona-release-0.1-4.noarch.rpm $ rpm -ivh percona-release-0.1-4.noarch.rpm
安装完成后，你就能在/etc/yum.repos.d 下看到一个percona-release.repo文件。
步骤2： 测试Repository,确保Percona XtraBackup相关包已经在Repository中。
[test@mylnx06 ~]$ yum list | grep percona-xtrabackup percona-xtrabackup-24.x86_64 2.4.7-2.el7 @percona-release-x86_64 percona-xtrabackup.x86_64 2.3.8-1.el7 percona-release-x86_64 percona-xtrabackup-22.x86_64 2.2.13-1.el7 percona-release-x86_64 percona-xtrabackup-22-debuginfo.x86_64 2.2.13-1.el7 percona-release-x86_64 percona-xtrabackup-24-debuginfo.x86_64 2.4.7-2.el7 percona-release-x86_64 percona-xtrabackup-debuginfo.x86_64 2.3.8-1.el7 percona-release-x86_64 percona-xtrabackup-test.x86_64 2.3.8-1.el7 percona-release-x86_64 percona-xtrabackup-test-22.x86_64 2.2.13-1.el7 percona-release-x86_64 percona-xtrabackup-test-24.x86_64 2.4.7-2.el7 percona-release-x86_64
步骤3：安装Percona XtraBackup包。