```
vim /etc/apt/sources.list

Add:
deb http://repo.percona.com/apt XXX main
deb-src http://repo.percona.com/apt XXX main

apt-key adv --keyserver keys.gnupg.net --recv-keys 1C4CBDCDCD2EFD2A
apt-get update

apt-get install percona-xtrabackup

innobackupex --help | more
```

<p>&nbsp;</p>