You’ll find in this article, somes tips about the OpenSUSE Tumbleweed distribution.

The tips cover :

• Zypper : Command line package management
• KDE : Desktop environment
• Btrfs : OpenSuse default file system
• NFS : Network file system
• VirtualBox : Virtualization software
• …

Tips about OpenSuse system

Zypper

1. Install a package : sudo zypper in --no-recommend package
2. Remove a package : sudo zypper rm --clean-deps package
3. Refresh repositories : sudo zypper ref or sudo zypper ref -f
4. Update packages : sudo zypper up
5. Upgrade Distribution : sudo zypper dup
6. Search packages : sudo zypper se package or sudo zypper se -is package
7. Lock packages : sudo zypper al package

Note: replace package by the package name

Some usefull links :

• Zypper Cheat Sheet 1
• Zypper Cheat Sheet 2

Message :

1Removal of ***********(@System) failed :
2Error: Subprocess failed. Error: RPM failed: error: package ********** is not installed

You have to rebuild the RPM database : sudo rpm --rebuilddb

File system btrfs

Rollback

To rollback from a bootable snapshot :

1. Start the system. In the startup menu, choose the “Bootable snapshots” option and select the snapshot you want to boot from.
2. Log in. Check that everything is working as expected.
3. If you want to perform the rollback, run sudo snapper rollback and then restart.
4. On the boot screen, choose the default boot entry to reboot on the restored system.

Issues

• If btrfs-cleaner use 100% of your CPU and freeze your computer, you can stop it with the command : sudo btrfs quota disable /
• To disable the btrfs service (if you don’t use the filesystem) : systemctl disable btrfsmaintenance-refresh

Service chrony

To disable chrony service startup : systemctl disable chrony-wait

Manage update manually (remove PackageKit)

To remove PackageKit : sudo zypper rm PackageKit* && sudo zypper al PackageKit*

Sound service (Pulseaudio)

To restart pulseaudio, use : pulseaudio -k

Network service

To restart network service use : sudo rcnetwork restart network_interface

Note: replace network_interface by your interface name (used ifconfig)

Configuration of the file fstab (with ntfs drive)

For each drive :

1. Create the following folder : mkdir /mnt/<name>
2. change the folder owner : chown anybody:wheel /mnt/<name>
3. update the fstab file sudo vi /etc/fstab with the following line : /dev/<drive> /mnt/<name> ntfs rw,nosuid,nodev,relatime 0 0

Some usefull command :

• list partitions : sudo fdisk -l
• list block devices : lsblk
• list uuid : sudo blkid

Configuration of the NFS client

• Discover the shared volumes on the NFS server : showmount -e <ip>
• Mount a shared volume from the NFS server (manually) : sudo mount -t nfs <ip>:<repnfs> <replocal>
• Mount a shared volume from the NFS server (automatically) : sudo vi /etc/fstab and add the line <ip>:<repnfs> <replocal> nfs rw,noauto,_netdev 0 0
• Mount all the fstab (reload) : mount -a

• ip of the NFS server
• repnfs : path/folder on the NFS server
• replocal : path/folder on the NFS client

Delete the boot screen (plymouth)

• Remove and lock the package plymouth : sudo zypper rm plymouth* && sudo zypper al plymouth*

Systemd information

• Information on the duration of the start of services : systemd-analyze blame

Modify the mouse configuration

• Search the list of devices : xinput list
• Retrieving the configuration of a device : xinput list-props <number>
• Modifying a device property : xinput set-prop <number> <prop> <values>
• Example for adjusting the mouse speed : xinput set-prop 8 157 0.500000, 0.000000, 0.000000, 0.000000, 0.500000, 0.000000, 0.000000, 0.000000, 1.000000

• number : Device number
• prop : Property number or name
• values : New values

Some tips about the KDE desktop

Configure Bind to Switch Desktop and Quick tile Window

1. Go to System Settings > Shortcuts > Global Shortcuts > System Settings or Kwin

2. Right Click on the desktop wallpaper > Configure Desktop > Mouse Actions > Remove action “Switch Desktop” for “Vertical-Scroll”

Autostart (KDE)

• With command line : Copy a file org.kde.*.desktop in the folder ~/.config/autostart

You could find them in the folder /usr/share/applications

• With GUI : Go in System Settings > Startup and Shutdown > Autostart

Reset KDE Session

• Reset the current KDE session (kill all process & logout) : pkill -kill -u username

Note : replace username by the name of the choosen one

Some tips about software

Konsole config

In Settings > Edit Current Profile

1. General > Profile name > Users
2. General > Command > /bin/bash
3. Appearance > Color Scheme & Background > Monokai-Flat
4. Keyboard > Linux console

Firefox configuration

The file places.sqlite in $HOME/.mozilla/firefox/%.default contains bookmarks and history.

List of interesting addons :

• Ublock Origin
• HTTPS Everywhere
• Canvasblocker
• Cookie autodelete
• Css exfil protection
• DecentralEyes
• Firefox Containers
• Redirector
• Select context search
• Awesome RSS
• Privacy Badger
• No Coin

Latte Dock configuration

List of interesting widgets :

• Application Menu
• Pager
• Justify Splitter
• Latte plasmoid
• Justify Splitter
• System Tray
• Digital Clock
• Lock/Logout

You need to download and add manually the widget “redshift”

To restore plasma config (panel) :

1. kquitapp plasmashell
2. sleep 10s
3. cp <plasma_files_backup> $HOME/.config/.
4. plasmashell &

Polybar install error

If you can’t install Polybar with Zypper (libjsoncpp.so.19 error), you can try the following step :

1. Install libjsoncpp21 : sudo zypper in libjsoncpp21
2. Find where is the file libjsoncpp.so.21 : sudo find / -name "libjsoncpp.so.21"
3. Copy the file libjsoncpp.so.21 with the name libjsoncpp.so.19 : sudo cp /usr/lib64/libjsoncpp.so.21 /usr/lib64/libjsoncpp.so.19
4. Install Polybar : sudo zypper in polybar

Some tips about virtualization

WMware

Shared Folder :

• Listing of shared folder : vmware-hgfsclient
• Mount a shared folder : vmhgfs-fuse -o allow_other .host: /mnt/
• Unmount a shared folder : fusermount -uz /mnt/or umount -f /mnt/

VirtualBox

Install VBoxGuestAdditions :

1. insert file VBoxGuestAdditions*.iso in the cdrom
2. sudo mkdir -p /media/cdrom
3. sudo mount -t iso9660 /dev/cdrom /media/cdrom
4. cd /media/cdrom
5. sudo ./VBoxLinuxAdditions.run

Install VirtualBox package :

1. sudo zypper in virtualbox-guest-tools virtualbox-guest-x11

Cleaning of disk image vdi :

1. vboxmanage modifymedium disk "./opensuse.vdi" --compact