OpenSUSE

Enable Bluetooth pairing on boot
Enable SSH access from outside after installation
Raspberry Pi
1. Firmware update from a running system
Rollback from a bootable snapshot
Firefox MP4/H.264 video support
Docker images
Further readings
1. Sources

Enable Bluetooth pairing on boot

enable the bluetooth service on boot
install bluez-auto-enable-devices; this will create the configuration file /etc/bluetooth/main.conf

Also see specific settings in the Bluetooth KB.

Enable SSH access from outside after installation

Open port 22 on the firewall:

using Yast:
1. open Yast2 > Firewall
2. make sure your interfaces are appointed to the External zone
3. check ssh is in the Allowed services column and add it to the list if not
4. save the configuration and exit (make sure the firewall is reloaded on exit)

using firewall-cmd on the command line:

sudo firewall-cmd --add-port=22/tcp --permanent

Start the SSH daemon:

using Yast: open Yast2 > System services and enable SSHD

using systemctl on the command line:

sudo systemctl enable --now sshd.service

Raspberry Pi

Install the OS from another computer capable of reading and writing SD cards.

Given /dev/sdb being a SD card, use the following:

curl -C - -L -o opensuse.raw.xz http://download.opensuse.org/ports/aarch64/tumbleweed/appliances/openSUSE-Tumbleweed-ARM-JeOS-raspberrypi.aarch64.raw.xz
xzcat opensuse.raw.xz \
 | sudo dd bs=4M of=/dev/sdb iflag=fullblock oflag=direct status=progress \
 && sync

Insert the SD card in the Raspberry Pi and power it on. The network is configured to get an IP address on eth0 using DHCP.

Connect using SSH and login using root:linux.

Firmware update from a running system

# Check for an updated firmware.
sudo rpi-eeprom-update

# Install the new version and reboot.
sudo rpi-eeprom-update -a && sync && reboot

Rollback from a bootable snapshot

Do as follows:

boot the system
in GRUB's boot menu, choose Bootable snapshots
select the snapshot you want to boot into; the list of snapshots is listed by date, the most recent snapshot being listed first
log in to the system
carefully check whether everything works as expected

You cannot write to any directory that is part of the snapshot. Data you write to other directories will not get lost, regardless of what you do next.

Depending on whether you want to perform the rollback or not, choose your next step:

if the system is in a state where you do not want to do a rollback, reboot and boot again into a different snapshot, or start the rescue system.
to perform the rollback, run
```
sudo snapper rollback
```
and reboot

On the boot screen, choose the default boot entry to reboot into the reinstated system.

A snapshot of the file system status before the rollback is created, and the default subvolume for root will be replaced with a fresh read-write snapshot.

Firefox MP4/H.264 video support

To deal with patent problems, neither Firefox nor openSUSE provides the H264 codec required by fresh new openSUSE installation to play some video formats on the web.
The Packman and VLC repositories provide the needed libav packages. Install those libraries to let Firefox use them to decode MP4/H.264 video.

zypper install 'libavcodec60' 'libavdevice60' 'libavformat60'

openSUSE provides ffmpeg and libav packages like libavcodec56, but in them all patent related codecs were removed making them unable to play MP4/H.264 video. That is why one needs to upgrade these packages with their version in the Packman or VLC repositories.

Go to this Simple WebRTC H264 check page to check if Firefox can play H.264 videos after installation.

Docker images

OpenSUSE's official container images are created and stored in SUSE's container registry:

docker run -ti --rm --name 'tw' 'registry.opensuse.org/opensuse/tumbleweed'

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