• The AWS Systems Manager CloudWatch Dashboard will no longer be available after April 30, 2026. Customers can continue to use Amazon CloudWatch console to view, create, and manage their Amazon CloudWatch dashboards, just as they do today. For more information, see [Amazon CloudWatch Dashboard documentation](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch_Dashboards.html). 

# Manually installing SSM Agent on Amazon Linux 2 and Amazon Linux 2023 instances
Amazon Linux 2 and Amazon Linux 2023

In most cases, the Amazon Machine Images (AMIs) for Amazon Linux 2 and Amazon Linux 2023 that are provided by AWS come with AWS Systems Manager Agent (SSM Agent) preinstalled by default. For more information, see [Find AMIs with the SSM Agent preinstalled](ami-preinstalled-agent.md).

In the event that SSM Agent isn’t preinstalled on a new Amazon Linux 2 or Amazon Linux 2023 instance, or if you need to manually reinstall the agent, use the information on this page to help you.

**Before you begin**  
Before you install SSM Agent on an Amazon Linux 2 or Amazon Linux 2023 instance, note the following:
+ For important information that applies to installation of SSM Agent on all Linux-based operating systems, see [Manually installing and uninstalling SSM Agent on EC2 instances for Linux](manually-install-ssm-agent-linux.md).
+ If you use a `yum` command to update SSM Agent on a managed node after the agent has been installed or updated using the SSM document `AWS-UpdateSSMAgent`, you might see the following message: `"Warning: RPMDB altered outside of yum."` This message is expected and can be safely ignored.

**Topics**
+ [

## Quick installation commands for SSM Agent on Amazon Linux 2 or Amazon Linux 2023
](#quick-install-al2)
+ [

## Create custom agent installation commands for Amazon Linux 2 or Amazon Linux 2023 in your Region
](#custom-url-al2)

## Quick installation commands for SSM Agent on Amazon Linux 2 or Amazon Linux 2023


Use the following steps to manually install SSM Agent on a single instance. This procedure uses globally available installation files. 

**To install SSM Agent on Amazon Linux 2 or Amazon Linux 2023 using quick copy and paste commands**

1. Connect to your Amazon Linux 2 or Amazon Linux 2023 instance using your preferred method, such as SSH.

1. Copy the command for your instance’s architecture and run it on the instance.
**Note**  
Even though URLs in the following commands include an `ec2-downloads-windows` directory, these are the correct global installation files for Amazon Linux 2 and Amazon Linux 2023.   
 **x86\$164**   

   ```
   sudo yum install -y https://s3.amazonaws.com/ec2-downloads-windows/SSMAgent/latest/linux_amd64/amazon-ssm-agent.rpm
   ```  
 **ARM64**   

   ```
   sudo yum install -y https://s3.amazonaws.com/ec2-downloads-windows/SSMAgent/latest/linux_arm64/amazon-ssm-agent.rpm
   ```

1. (Recommended) Run the following command to verify that the agent is running.

   ```
   sudo systemctl status amazon-ssm-agent
   ```

   In most cases, the command reports that the agent is running, as shown in the following example.

   ```
   amazon-ssm-agent.service - amazon-ssm-agent
   Loaded: loaded (/usr/lib/systemd/system/amazon-ssm-agent.service; enabled; vendor preset: enabled)
   Active: active (running) since Wed 2021-10-20 19:09:29 UTC; 4min 6s ago
               --truncated--
   ```

   In rare cases, the command reports that the agent is installed but not running, as shown in the following example.

   ```
   amazon-ssm-agent.service - amazon-ssm-agent
   Loaded: loaded (/usr/lib/systemd/system/amazon-ssm-agent.service; enabled; vendor preset: enabled)
   Active: inactive (dead) since Wed 2021-10-20 22:16:41 UTC; 18s ago
               --truncated--
   ```

   To activate the agent in these cases, run the following command.

   ```
   sudo systemctl start amazon-ssm-agent
   ```

## Create custom agent installation commands for Amazon Linux 2 or Amazon Linux 2023 in your Region


When you install SSM Agent on multiple instances using a script or template, we recommend using installation files that are stored in the AWS Region you're working in. 

For the following commands, we provide examples that use a publicly accessible S3 bucket in the US East (Ohio) Region (`us-east-2`). 

**Tip**  
You can also replace a global URL in the procedure [Quick installation commands for SSM Agent on Amazon Linux 2 or Amazon Linux 2023](#quick-install-al2) earlier in this topic with a custom Regional URL you construct.

In the following command, replace *region* with your own information. For a list of supported *region* values, see the **Region** column in [Systems Manager service endpoints](https://docs.aws.amazon.com/general/latest/gr/ssm.html#ssm_region) in the *Amazon Web Services General Reference*.

**x86\$164**  

```
sudo yum install -y https://s3.region.amazonaws.com/amazon-ssm-region/latest/linux_amd64/amazon-ssm-agent.rpm
```
See the following example.  

```
sudo yum install -y https://s3.us-east-2.amazonaws.com/amazon-ssm-us-east-2/latest/linux_amd64/amazon-ssm-agent.rpm
```

**ARM64**  

```
sudo yum install -y https://s3.region.amazonaws.com/amazon-ssm-region/latest/linux_arm64/amazon-ssm-agent.rpm
```
See the following example.  

```
sudo yum install -y https://s3.us-east-2.amazonaws.com/amazon-ssm-us-east-2/latest/linux_arm64/amazon-ssm-agent.rpm
```