Linux adventures

after install open terminal and write: sudo clr-boot-manager set-timeout 5 && sudo clr-boot-manager update hit enter, enter your password and you get this output: New timeout value is: 5 reboot and you are done

These are the steps I take to setup OpenSUSE on a new machine. Please research each command if you don't understand what it's doing. Enable Community Repository [Open] Yast > Software Repositories > Add > Community Install Software This is the list of software I like to install with a fresh install. Remove any you don't want. sudo zypper install -y libyubikey-tools yubikey-manager chromium yubikey-personalization-gui telegram-desktop fish steam kdenlive obs-studio inkscape tilix calibre krita flameshot guvcview darktable shotwell remmina thunderbird deja-dup vim nano mumble git x264 smplayer Install Snaps Snap Instruction For openSUSE Website Pay attention to the differences between Leap and Tumbleweed during install. For Tumbleweed use:

Flatpak (formerly xdg-app) is a software utility for software deployment, package management, and application virtualization for Linux desktop computers. It provides a sandbox environment in which users can run applications in isolation from the rest of the system. Applications using Flatpak need permission from the user to control hardware devices or access the user’s files. As of February 2017, some popular apps available as Flatpaks include Blender, Skype, Spotify, LibreOffice, Pitivi, KDE Applications and development versions of Mozilla Firefox. Installation As always, make sure the system is fully up to date before installing any: sudo pacman -Syu And install Flatpak with: sudo pacman -S flatpak Once installed enable the use of remote repositories by issuing the following command: sudo flatpak remote- list Installing Flatpak Applications Currently, there is no GUI in KaOS to add Flatpak applications, but the cli option is easy to use. Example to add Skyp

Some very basic commands. To update the system sudo pacman -Syu Update the database: sudo pacman -Syy Installing To install a package (always run pacman -Syu, before installing): sudo pacman -S package_name To install a local package, or from a website: sudo pacman -U /path/to/the/ package To re-install all packages (those from the repo’s), in case of emergency: sudo pacman -Sy $(pacman -Q | cut -d " " -f 1 | grep -v " $(pacman -Qm | cut -d " " -f1) " ) Removing Packages If you want to only remove the package, the following command is sufficient: sudo pacman -R To remove the package and those of its dependencies that aren’t needed by any other application, do sudo pacman -Rs Finally, to remove the package, avoid orphaned dependencies and erase its global configuration, type sudo pacman -Rns package_name which in most cases is the proper command to remove software. Searches/Queries Info about an installed package:

KaOS is a Linux distro that is built from scratch with a very specific focus on Qt and KDE . Although KaOS is currently based on the Linux kernel, the developers are "constantly evaluating" the illumos kernel, and say that "a future switch is a wish". The idea behind KaOS is to create a tightly integrated rolling and transparent distribution for the modern desktop, build from scratch with a very specific focus. Focus on one DE (KDE Plasma), one toolkit (Qt), one architecture (x86_64) plus a focus on evaluating and selecting the most suitable tools and applications. KaOS doesn't intend to be, or claim to be, a general-purpose Linux distribution for everyone, or a dead-easy distribution for complete newcomers to Linux. But if you are interested in a solid, carefully focused KDE-specific distribution for 64-bit systems, then I think KaOS could be a very interesting choice.

Packman offers various additional packages for openSUSE, especially but not limited to multimedia related applications and libraries that are on the openSUSE Build Service application blacklist . It's the largest external repository of openSUSE packages. Packman is comprised of the following four repositories: Essentials : provides codecs and audio and video player applications, to fulfill the most essential needs Multimedia : contains many more multimedia related applications Extra : additional non multimedia related applications, mostly network related Games : obviously, games The repositories above may be added individually be appending their name to the end of the URLs below. The latter three repositories are built upon Essentials and as such it must be added to utilize them. All of Packman: Version: Tumbleweed All of Packman zypper ar -cfp 90 http://ftp.gwdg.de/pub/linux/misc/packman/suse/openSUSE_Tumbleweed/ packman Only Essentials: Version: Tumblew

As we know OpenSuse is one the most famous Linux distro providing , In this post I am going to tell you how to install multimedia codecs on OpenSUSE tumbleweed , process is also same for OpenSuse Leap. About OpenSUSE Tumbleweed As per OpenSuse  “The Tumbleweed distribution is a pure rolling release version of openSUSE containing the latest stable versions of all software instead of relying on rigid periodic release cycles. The project does this for users that want the newest stable software. ” Installing Codecs in Opensuse: For Installing codecs we have to add Packman Repo . (Require Root privilages use (su -i). Remember  If things don’t work after installing the codecs , make sure all your multimedia packages are coming from Packman. Add  Pacman Repo zypper addrepo -f http://packman.inode.at/suse/openSUSE_Tumbleweed/packman Installing Multimedia codecs zypper install vlc vlc-codecs k3b-codecs ffmpeg lame gstreamer-plugins-libav gstreamer-plugins-bad gstreamer-plu

A little customization of the url bar, To get the url font the same color: browser.urlbar.formatting.enabled true To change the color of the padlock back to green: security.secure_connection_icon_color_gray false

Note Before making any changes, please make a backup of .mozilla/firefox/--------.default/prefs.js for your own safety. prefs.js is a file that stores all of your history and bookmarks from Firefox.   First open Firefox.   Type " about:config " (without quotes) in the Firefox address bar and then click "Enter" . This command opens a configuration page that allows the user to change advanced system settings in Firefox.   Speed up page loading/rendering time in Firefox. Right-click anywhere in the "about:config" window, click on " New " and then select " String " . Name the string " nglayout.initialpaint.delay " (without quotes). Enter a value of " 0 " and then click "OK" . This tweak decreases the amount of time Firefox waits to render a page from 250 milliseconds to zero . Make the same process and name the string " content.notify.interval " and

Swappiness is a property for the Linux kernel that changes the balance between swapping out runtime memory, as opposed to dropping pages from the system page cache. Swappiness can be set to values between 0 and 100, inclusive. A low value means the kernel will try to avoid swapping as much as possible where a higher value instead will make the kernel aggressively try to use swap space. As this parameter sets the kernel's balance between reclaiming pages from the page cache and reclaiming pages by swapping out process memory, a discussion of page reclaim overall is warranted. The reclaim code works (in a very simplified way) by calculating a few numbers: The distress value is a measure of how much trouble the kernel is having freeing memory. The first time the kernel decides it needs to start reclaiming pages, distress will be zero; if more attempts are required, that value goes up, approaching a max value of 100. The mapped_ratio value is an approximate percentage of how much of

Installing an alternative kernel By default, Solus utilizes our linux-current kernel. The separate kernel branches can be added by installing the linux-lts or linux-current packages. Note that each kernel has separate module packages, so if you use these kernel modules, you’ll need to install the one related to the kernel you are adding. linux-lts linux-current bbswitch bbswitch-current broadcom-sta broadcom-sta-current linux-lts-headers linux-current-headers nvidia-340-glx-driver nvidia-340-glx-driver-current nvidia-390-glx-driver nvidia-390-glx-driver-current nvidia-glx-driver nvidia-glx-driver-current razer-drivers razer-drivers-current v4l2loopback v4l2loopback-current vhba-module vhba-module-current Change the default kernel branch to boot After successfully booting into a kernel from the current or lts branches running sudo clr-boot-manager update will make the booted kernel branch the default boot option going forward.

How do I check? See which version you are running by opening the System Monitor and checking the System tab. Or via the Terminal: cat /etc/os-release

1. Update sudo eopkg up 2. Check Broken Packages sudo eopkg check | grep Broken | awk '{print $4}' | xargs sudo eopkg it --reinstall OR (to see what is going on) sudo eopkg check | tee /dev/stderr | grep Broken | awk '{print $4}' | xargs sudo eopkg it --reinstall 3. Remove Orphan Packages sudo eopkg rmo 4. Clean Cache Files sudo eopkg dc 5. Clear Systemd Logs sudo journalctl --vacuum-time=2d 6. For people who are packaging sudo solbuild dc --all 7. Remove Recently Used Files rm /.local/share/recently-used.xbe* touch /.local/share/recently-used.xbel 8. Empty Files sudo su > /var/log/wtmp > /var/log/btmp > /var/log/lastlog > /var/log/eopkg.log dmesg -c > /var/log/cups/access_log > /var/log/cups/error_log