Added install on ARM64 instructions

docs/install/repos.md

@@ -9,35 +9,64 @@ To install the software from Percona repositories means to subscribe to them. Pe
 <i warning>:material-alert: Warning:</i> Run the following commands as root or via the `sudo` command.
 {.power-number}
 
-1. [Install `percona-release`](https://www.percona.com/doc/percona-repo-config/installing.html). If you have installed it before, [update](https://www.percona.com/doc/percona-repo-config/updating.html) it to the latest version.
+### Configure Percona repository
 
-2. Enable the repository
+=== "x86_64"
 
-    ```{.bash data-prompt="$"}
-    $ sudo percona-release enable pbm release
-    ```
+    Percona provides the [`percona-release`](https://docs.percona.com/percona-software-repositories/index.html) configuration tool that simplifies operating repositories and enables to install and update both Percona Backup for MongoDB packages and required dependencies smoothly. 
+
+    1. [Install `percona-release`](https://www.percona.com/doc/percona-repo-config/installing.html). If you have installed it before, [update](https://www.percona.com/doc/percona-repo-config/updating.html) it to the latest version.    
 
-3. Install Percona Backup for MongoDB packages
+    2. Enable the repository    
 
-    === "On Debian and Ubuntu"    
+        ```{.bash data-prompt="$"}
+        $ sudo percona-release enable pbm release
+        ```
 
-        1. Reload the local package database:    
+=== "ARM64"
 
-            ```{.bash data-prompt="$"}
-            $ sudo apt update
-            ```    
+    === "On Debian and Ubuntu"
+
+        Create the `/etc/apt/sources.list.d/percona-pbm-release.list ` configuration file with the following contents:
+
+        ```ini title='/etc/apt/sources.list.d/percona-pbm-release.list'
+        deb http://repo.percona.com/pbm/apt OPERATING_SYSTEM main
+        ```
+
+    === "On Red Hat Enterprise Linux and derivatives"
+
+        Create the `/etc/yum.repos.d/percona-pbm-release.repo` configuration file with the following contents:
+
+        ```ini title='/etc/yum.repos.d/percona-pbm-release.repo'
+        [pbm-release-aarch64]
+        name = Percona Backup MongoDB release/aarch64 YUM repository
+        baseurl = http://repo.percona.com/pbm/yum/release/$releasever/RPMS/aarch64
+        enabled = 1
+        gpgcheck = 1
+        gpgkey = file:///etc/pki/rpm-gpg/PERCONA-PACKAGING-KEY
+        ```
 
-        2. Install Percona Backup for MongoDB:    
+### Install Percona Backup for MongoDB packages
 
-            ```{.bash data-prompt="$"}
-            $ sudo apt install percona-backup-mongodb
-            ```    
+=== "On Debian and Ubuntu"    
 
-    === "On Red Hat Enterprise Linux and derivatives" 
+    1. Reload the local package database:    
 
         ```{.bash data-prompt="$"}
-        $ sudo yum install percona-backup-mongodb
-        ```
+        $ sudo apt update
+        ```    
+
+    2. Install Percona Backup for MongoDB:    
+
+        ```{.bash data-prompt="$"}
+        $ sudo apt install percona-backup-mongodb
+        ```    
+
+=== "On Red Hat Enterprise Linux and derivatives" 
+
+    ```{.bash data-prompt="$"}
+    $ sudo yum install percona-backup-mongodb
+    ```
 
 --8<-- "install-result.md"