Introduction to SUSE Linux Enterprise Server for the Raspberry PiSUSE Linux Enterprise Server
This guide contains an overview of SUSE Linux Enterprise Server on the Raspberry Pi platform and will guide you through the setup procedure.
1.0 Platform Overview
To be able to use SUSE Linux Enterprise Server on Raspberry Pi, an ARM AArch64 compatible Raspberry Pi is required. SUSE Linux Enterprise Server is tested to work on a Raspberry Pi 3 Model B board.
1.1 Technical Details of the Raspberry Pi 3 Model B
The Raspberry Pi is a series of small single-board computers based on a System on a Chip (SoC) by Broadcom*, featuring various peripherals on the board.
Figure 1 Overview of the Raspberry Pi 3 Model B Connectors, © Efa / English Wikipedia / CC BY-SA 3.0
Figure 2 Photo of the Raspberry Pi 3 Model B Connectors, © Evan-Amos / Own work / Public Domain
- Selected Features of the Raspberry Pi 3 Model B
The Broadcom SoC includes a quad-core ARM* Cortex*-A53 cores supporting the ARMv8 32-bit and 64-bit instruction sets. With the default configuration, it is clocked up to 1.2 GHz.
1024 MiB DDR2 memory mounted on the back of the board.
Broadcom* VideoCore* IV providing OpenGL ES 2.0 support. Displays can be connected over HDMI or composite (TRRS jack).
A USB Ethernet adapter on the board provides 10/100MBit/s Ethernet.
The BCM43438 chip supports IEEE-802.11g, IEEE-802.11b and IEEE-802.11n in the 2,4 GHz band. It also provides Bluetooth 2.0-4.1 (Low Energy).
MicroSDHC card slot
The Raspberry Pi's main power source is the Micro USB connector. It is recommended to use the bundled power supply only.
A total of four USB 2.0 ports is available.
A 0.1 inch multi-function pin header is also available. Note that not all functionality of this header is exposed in SUSE Linux Enterprise Server for the Raspberry Pi.
1.2 SUSE Linux Enterprise Server 12 SP2
SUSE Linux Enterprise Server 12 SP2 is the first enterprise-class Linux operating system available free-of-charge for the Raspberry Pi. During its lifetime, customers running a registered SUSE Linux Enterprise Server for the Raspberry Pi system, will receive all released bug and security fixes, as well as feature updates.
NOTE: No commercial support available
SUSE will not provide commercial support offers via SUSE Technical Support for SUSE Linux Enterprise Server for the Raspberry Pi.
Differences Compared to Raspbian
Raspbian is the de-facto default distribution for the Raspberry Pi. The following paragraphs provide a short overview of differences between SUSE Linux Enterprise Server for the Raspberry Pi and Raspbian.
- Based on Upstream Kernel
While Raspbian uses a kernel with modifications especially for the Raspberry Pi, SUSE Linux Enterprise Server for the Raspberry Pi uses the default SUSE Linux Enterprise kernel for AArch64.
- AArch64 Instruction Set
SUSE Linux Enterprise Server for the Raspberry Pi is the first distribution for the Raspberry Pi using the AArch64 instruction set.
- Boot Process
In Raspbian, the kernel is loaded directly. This is not supported by SUSE Linux Enterprise Server for the Raspberry Pi, where the U-Boot boot loader is used to provide an EFI boot environment. A GRUB2 EFI binary is chainloaded to provide a graphical boot screen.
- Root Filesystem
SUSE Linux Enterprise Server for the Raspberry Pi uses Btrfs as file system for the root partition. compression is enabled by default for better SD-Card performance.
YaST is the installation and configuration framework for SUSE Linux Enterprise. It is popular for its easy use, flexible graphical interfaces and the capability to customize your system quickly during and after the installation. YaST can be used to configure your entire system: you can configure hardware, set up networking, manage system services and tune your security settings. All these tasks can be reached from the YaST Control Center. To start it, choose YaST in the menu or run the command xdg-su -c yast2. You will be prompted to enter the password of the root user.
Figure 3 The YaST Control Center
When started, YaST shows an overview of available modules (Figure 3). Simply click an icon to open a module.
Zypper is the package manager for SUSE Linux Enterprise. It is the tool for installing, updating and removing packages as well as managing repositories.
The general syntax for Zypper invocations is:
zypper [global-options]command[command-options][arguments] ...
NOTE: Short Command Form
For most commands, there is both a short and a long form. An overview is available with zypper --help.
- Installing a package
zypper install mplayer
- Removing a package
zypper remove mplayer
- List available patches
- Install available patches
NOTE: Installing Software Updates
The recommended way to install available software updates is using the YaST
Online Updater. To start it, choose
Online Update in
Desktop Apps in the IceWM menu.
- Graphics not hardware-accelerated
X.Org hardware acceleration is disabled to improve system stability and reliability.
To enable it, comment out the following line in /etc/X11/xorg.conf.d/20-kms.conf: Option "AccelMethod" "none" by prefixing it with
SUSE Linux Enterprise Server for Raspberry Pi is distributed as XZ-compressed image file for MicroSD cards. This section will guide you through the process of preparing the card to the first boot. If you already have a MicroSD card containing the image, you can skip this section and go straight to Section 3.0, Booting for the First Time.
NOTE: SD Card Space Requirements
It is recommended to use a card with a capacity of at least 8 GB.
WARNING: All Data on the Card will be Lost!
By following the procedure below, all data on the SD card will be overwritten and therefore irrevocably lost! Be very careful when choosing the destination device of the image writing process!
2.1 Preparing the Card on Linux
Before and after you plug in the SD card, run the lsblk command. Between the two runs of lsblk, there should be a difference of one or more lines. The first column and first row is the name of the node representing the SD card in your system. To write the image to the card, use the dd command:
xz -cd IMAGE | dd of=/dev/SDCARDDEV bs=4096
Example 1 Writing the Image to the Card using dd
This command decompresses the image SLES-12-SP2-ARM-JeOS-raspberrypi3_aarch64-Build2.62.raw.xz to the SD card mmcblk0.
xz -cd SLES-12-SP2-ARM-JeOS-raspberrypi3_aarch64-Build2.62.raw.xz | sudo dd of=/dev/mmcblk0 bs=4096
2.2 Preparing the Card on Windows*
The following steps will guide you through the installation of the image onto the SD card on Windows. You need to meet these prerequisites:
Open the downloaded image using Easy-7-Zip. Extract the file content into a folder with sufficient free space.
Run Win32 Disk Imager and select the extraced file as. Then, choose the correct drive letter as . Click on to start the procedure.
NOTE: Finding the correct device
If you are unsure which drive letter to choose from in the list, just remove the SD card and run Win32 Disk Imager again. The option that disappeared is the right target device.
2.3 Preparing the Card on macOS*
The following steps will guide you through the installation of the image onto the SD card on macOS. You need to meet these prerequisites:
Latest available Image of SUSE Linux Enterprise Server for the Raspberry Pi
The Unarchiver from http://unarchiver.c3.cx/unarchiver
Open Finder at the location where the downloaded image is stored. Use theselection to choose The Unarchiver instead of the default Archive utility and extract the content into a folder with sufficient free space.
Open a Terminal window and change into the destination directory of the uncompressed image. Enter diskutil list before and after the SD card is inserted to find out which device to use.
Run diskutil unmountDisk /dev/diskX, where X is the disk number from the previous step.
Run sudo dd bs=4096 if=imageFile.raw of=/dev/diskX, where X is the disk number and imageFile.raw is the name of the uncompressed image.
sudo dd bs=4096 if=SLES-12-SP2-ARM-JeOS-raspberrypi3_aarch64-Build2.62.raw of=/dev/disk4 Password: 5550+0 records in 5550+0 records out 5819596800 bytes transferred in 1131.796649 secs (5141910 bytes/sec)
Now unmount the disk (which is now labelled) as usual.
3.0 Booting for the First Time
After insertion of the prepared MicroSD card, connect a display, ethernet and USB keyboard and mouse first, then provide power over Micro USB. After a few seconds you should be able to see a few lines of text on the screen. If that is not the case, recheck the connection to the display.
NOTE: Operation Without Mouse
YaST can be used without a mouse by only using the keyboard. Every GUI element has an accelerator configured, visible as underlined letter. To activate such an accelerator, press the letter together with Alt.
On the first boot, the system will expand to fill the entire SD card, so be patient.
3.1 Initial System Setup with YaST
After a few minutes, YaST will lead you through the initial system setup.
First, the system language and keyboard layout needs to be configured. Use the drop-down boxes and click.
Selecton this screen.
Read the License Agreement. You need to accept the license by selectingand choosing .
Select the time zone either by clicking the area in the map or selecting region and zone in the drop-down boxes.
If the time and date shown at the bottom on the screen are incorrect, setup the Network Time Protocol client by following these steps:
Clickto open the NTPD configuration.
Clickto synchronize date and time with NTPD.
After the synchronization completed, clickto return to the Time and Date overview.
On this page, you can configure a default user account.
NOTE: Automatic Login not supported
Automatic Login is not supported by xdm, the default display manager. Install gdm after the installation to make it work.
If you chose to skip the previous step or not to set a root password, you will be asked to provide one now. Do not forget what you enter here, you will need it for administration!
On this screen you need to enter your E-mail address and the registration code you received. You can also choose to.
NOTE: Skipping the Registration
If you choose to skip the registration here, you will not receive updates or patches until you registered manually using YaST
Clickto exit the setup wizard and continue the system startup.
3.2 The Desktop Environment
When the system finished booting, you will see the following login screen:
Figure 4 XDM Login Screen
Type in the user name and password you chose during the initial configuration. The default IceWM desktop starts. By using the menu, you can start an XTerm terminal:
Figure 5 IceWM desktop
4.0 General System Usage
After the initial configuration procedure and the first boot of the system, you can now use various components of the system.
The Raspberry Pi has a Bluetooth* controller on-board that can be used for various purposes, like wireless keyboards, mice or audio devices.
To enable the Bluetooth* controller for use with bluetoothctl and related applications, run:
hciattach /dev/ttyAMA0 bcm43xx 921600 bcm43xx_init Flash firmware /lib/firmware/BCM43430A1.hcd Set Controller UART speed to 921600 bit/s Device setup complete
You can then use hciconfig hci0 up to bring the device up and use hcitool scan to scan the environment for discoverable devices.
It is strongly advised to use the version 6 of the GNU Compiler Collection for compiling software. It is already installed as part of the Software Development Kit. To use it, gcc-6 has to be invoked instead of gcc.
5.0 Product Documentation
This introduction only covered the most basic tasks.
5.1 Product Documentation
You can find the complete documentation for SUSE Linux Enterprise Server 12 SP2 on https://www.suse.com/documentation/sles-12/.
NOTE: Applicability of Product Documentation
Due to the Raspberry Pi being a vastly different hardware platform, not all content in the product documentation applies also to SUSE Linux Enterprise Server for the Raspberry Pi.
5.2 Self-Help Forum
SUSE has provided a self help forum where you can get answers to questions. Go to https://forums.suse.com/ and select the SLES for the Raspberry Pi forum.
6.0 Legal Notice
Copyright ©2006– 2016 SUSE LLC and contributors. All rights reserved.
Permission is granted to copy, distribute and/or modify this document under the terms of
the GNU Free Documentation License, Version 1.2 or (at your option) version 1.3; with the
Invariant Section being this copyright notice and license. A copy of the license version 1.2
is included in the section entitled
GNU Free Documentation License.
SUSE, the SUSE logo and YaST are registered trademarks of SUSE LLC in the United States and other countries. For SUSE trademarks, see http://www.suse.com/company/legal/. Linux is a registered trademark of Linus Torvalds. Other names or trademarks mentioned in this document may be trademarks or registered trademarks of their respective owners.
All information found in this book has been compiled with utmost attention to detail. However, this does not guarantee complete accuracy. Neither SUSE LLC, its affiliates, the authors, nor the translators shall be held liable for possible errors or the consequences thereof.
7.0 GNU Free Documentation License
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This License is a kind of "copyleft", which means that derivative works of the document must themselves be free in the same sense. It complements the GNU General Public License, which is a copyleft license designed for free software.
We have designed this License to use it for manuals for free software, because free software needs free documentation: a free program should come with manuals providing the same freedoms that the software does. But this License is not limited to software manuals; it can be used for any textual work, regardless of subject matter or whether it is published as a printed book. We recommend this License principally for works whose purpose is instruction or reference.
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ADDENDUM: How to use this License for your documents
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