Registering Raspberry Pi OS Clients

This section contains information about registering clients running Raspberry Pi OS operating systems.

Bootstrapping can be used with Raspberry Pi OS clients for performing initial state runs, and for profile updates.

Raspberry Pi OS repository URLs are available from SUSE Customer Center.
Packages and metadata are provided by Raspberry Pi OS, not by SUSE.
For supported products, see the support table and the release notes.

1. Prepare to Register

Some preparation is required before you can register Raspberry Pi OS clients to the SUSE Multi-Linux Manager Server:

Ensure DNS is correctly configured and provides an entry for the client. Alternatively, you can configure the /etc/hosts files on both the SUSE Multi-Linux Manager Server and the client with the appropriate entries.
The client must have the date and time synchronized with the SUSE Multi-Linux Manager Server before registration.

2. Add Software Channels

Before you register Raspberry Pi OS clients to your SUSE Multi-Linux Manager Server, you need to add the required software channels, and synchronize them.

The architecture currently supported is arm64.

For example, when working with arm64 architecture, you need:

Table 1. Raspberry Pi OS - WebUI
OS Version	Product Name
Raspberry Pi OS 12	Raspberry Pi OS 12 (Tech Preview)

Procedure: Adding Software Channels

In the SUSE Multi-Linux Manager Web UI, navigate to Admin Setup Wizard Products.
Locate the appropriate products for your client operating system and architecture using the search bar, and check the appropriate product. This will automatically check all mandatory channels. Also all recommended channels are checked as long as the include recommended toggle is turned on. Click the arrow to see the complete list of related products, and ensure that any extra products you require are checked.
Click Add Products and wait until the products have finished synchronizing.

Alternatively, you can add channels at the command prompt.

The channels you need for this procedure are:

Table 2. Raspberry Pi OS Channels - CLI
OS Version	Base Channel
Raspberry Pi OS 12	raspberrypios-12-pool-arm64

Procedure: Adding Software Channels at the Command Prompt

At the command prompt on the SUSE Multi-Linux Manager container host, as root, add the appropriate channels:

mgrctl exec -ti -- spacewalk-common-channels \
<base_channel_label> \
<child_channel_label_1> \
<child_channel_label_2> \
... <child_channel_label_n>

To list all available repositories, execute the command:

mgrctl exec -ti -- spacewalk-common-channels -l

If automatic synchronization is turned off, synchronize the channels:
```
mgrctl exec -ti -- spacewalk-repo-sync -p <base_channel_label>
```
Ensure the synchronization is complete before continuing.

The client tools channel provided by spacewalk-common-channels is sourced from Uyuni and not from SUSE.

You need all the new channels fully synchronized before bootstrapping any Raspberry Pi OS client.

3. Check Synchronization Status

Procedure: Checking Synchronization Progress From the Web UI

In the SUSE Multi-Linux Manager Web UI, navigate to Admin Setup Wizard and select the Products tab. This dialog displays a completion bar for each product when they are being synchronized.
Alternatively, you can navigate to Software Manage Channels, then click the channel associated to the repository. Navigate to the Repositories tab, then click Sync and check Sync Status.

Procedure: Checking Synchronization Progress From the Command Prompt

To list available logs before tailing, run the following command:
mgrctl exec -ti -- ls /var/log/rhn/reposync/
At the command prompt on the SUSE Multi-Linux Manager container host, as root, check the synchronization of a channel log file:
mgrctl exec -ti -- tail -f /var/log/rhn/reposync/<channel-label>.log
Each child channel generates its own log during the synchronization progress. You need to check all the base and child channel log files to be sure that the synchronization is complete.

Raspberry Pi OS channels can be very large. Synchronization can sometimes take several hours.

4. Create an Activation Key

You need to create an activation key that is associated with your Raspberry Pi OS channels.

For more information on activation keys, see Activation Keys.

5. Manage GPG Keys

Clients use GPG keys to check the authenticity of software packages before they are installed. Only trusted software can be installed on clients.

Trusting a GPG key is important for security on clients. It is the task of the administrator to decide which keys are needed and can be trusted. Because a software channel cannot be used when the GPG key is not trusted, the decision of assigning a channel to a client depends on the decision of trusting the key.

For more information about GPG keys, see GPG Keys.

Raspberry Pi OS clients can require multiple GPG keys to be installed.

When synchronizing third-party Raspberry Pi OS repositories, you will need to import the appropriate GPG key on the server. If the GPG key is missing, synchronization will fail.

For Raspberry Pi OS repositories, only the metadata is signed. Therefore importing a GPG key for the software channel is not needed. Packages will not be re-signed by SUSE Multi-Linux Manager.

To see which GPG keys are already imported to SUSE Multi-Linux Manager Server, run the following command:

mgrctl exec -- gpg --homedir /var/lib/spacewalk/gpgdir --list-keys

To import a new GPG key, run the following command:

mgradm gpg add <filename>.gpg

6. Root Access

The root user on Raspberry Pi OS is disabled by default for SSH access.

To be able to onboard using a regular user, you need to edit the sudoers file.

Procedure: Granting Root User Access

On the client, edit the sudoers file:
```
sudo visudo
```
Grant sudo access to the user by adding this line at the end of the sudoers file. Replace <user> with the name of the user that is bootstrapping the client in the Web UI:
```
<user>  ALL=NOPASSWD: /usr/bin/python, /usr/bin/python2, /usr/bin/python3, /var/tmp/venv-salt-minion/bin/python
```

This procedure grants root access without requiring a password, which is required for registering the client. When the client is successfully installed it runs with root privileges, so the access is no longer required. We recommend that you remove the line from the sudoers file after the client has been successfully installed.

7. Register Clients

To register your clients, you need a bootstrap repository. By default, bootstrap repositories are automatically created, and regenerated daily for all synchronized products. You can manually create the bootstrap repository from the command prompt on the container host:

mgrctl exec -ti mgr-create-bootstrap-repo

For more information on registering your clients, see Client Registration.