1. Download new application launcher from site: https://store.kde.org/browse?cat=398&ord=latest
2. Run command:
plasmapkg2 --install LauncherName.tar.gz
If you want to upgrade launcher to new version use command:
plasmapkg2 --upgrade LauncherName.tar.gz
3. Right click on Start Menu icon > Show alternatives > Select LauncherName
If you want to uninstall launcher use command:
plasmapkg2 --remove LauncherName.tar.gz
1. First download official ISO image from Proxmox website: https://www.proxmox.com/
2. Write ISO image to USB flash drive using program Etcher: https://www.balena.io/etcher/
3. Boot PC from USB drive and install Proxmox. If you have two hard drives you can use ZFS file system to create RAID array.
Now log in to Proxmox admin panel using Web-browser: https://server-ip-address:8006
After installation we need to upgrade our system. Proxmox based on Debian GNU Linus and it use Debian repositories but in free version of Proxmox we will have an error when we try to upgrade. We need to disable enterprise Proxmox repositories. Open file /etc/apt/sources.list.d/pve-enterprise.list and comment with symbol # first line with enterprise Proxmox repository.
nano /etc/apt/sources.list.d/pve-enterprise.list
Then we can update packages list and upgrade our system:
apt update apt upgrade
After installation let’s configure Local storage.
In admin panel go to Datacenter -> Storage, select local-lvm storage and click Remove
After that go to your Node -> Shell and write next commands:
lvremove /dev/pve/data lvresize -l +100%FREE /dev/pve/root
And the last command to resize our local storage to 100% is:
resize2fs /dev/mapper/pve-root
Done, now we can use 100% of local storage, installed in our server. If you click on local storage you can see entire size of hard drive.
To remove the “You do not have a valid subscription for this server” popup message while logging in, run the command bellow:
sed -Ezi.bak "s/(Ext.Msg.show\(\{\s+title: gettext\('No valid sub)/void\(\{ \/\/\1/g" /usr/share/javascript/proxmox-widget-toolkit/proxmoxlib.js && systemctl restart pveproxy.service
If you have MySQL database files and you want to restore database on new server do next steps:
1. Stop MySQL server:
systemctl stop mysql
2. Copy all files of database to /var/lib/mysql directory;
3. Also copy files:
/var/lib/mysql/ibdata1
/var/lib/mysql/ib_logfile0
/var/lib/mysql/ib_logfile1
4. Change user and group of all files in directory /var/lib/mysql to mysql:mysql:
chown -R mysql:mysql .
5. Change permission of files in directory /var/lib/mysql to 660
find . -type f -print0 | xargs -0 chmod 660
6. Start MySQL server:
systemctl start mysql
To restore database from SQL dump use command:
mysql -u [user] -p [database_name] < [filename].sql
If you get error message “Fakeroot binary missing” when you try to compile application from AUR using command:
makepkg -si
Run this command:
sudo pacman -S --needed base-devel
This will install all missing packages of base-devel group.
If you have an error like:
InnoDB refuses to write tables with ROW_FORMAT=COMPRESSED or KEY_BLOCK_SIZE
All you need – to edit mysql configuration file: /etc/mysql/my.cfg
sudo nano /etc/mysql/my.cfg
Add this command:
skip-innodb-read-only-compressed
Save changes and restart mysql server:
sudo systemctl restart mysql
LibreWolf is a fork of Firefox, focused on privacy, security and freedom. This browser provides such features:
Download this program You can on the official Web-site of LibreWolf browser: https://librewolf-community.gitlab.io/
The source code of LibreWolf You can get here: https://gitlab.com/librewolf-community/browser
Touchégg is an app that runs in the background and transform the gestures you make on your touchpad or touchscreen into visible actions in your desktop.
For example, you can swipe up with 3 fingers to maximize a window or swipe left with 4 finger to switch to the next desktop.
Many more actions and gestures are available and everything is easily configurable.
Download and install program you can on official Git repository: https://github.com/JoseExposito/touchegg
The $PATH environment variable is a list of directories that tells the shell which directories to search for executable files.
To check what directories are in your $PATH list use command:
echo $PATH
To add new directory ~/.local/bin/ to $PATH use command:
export PATH="$HOME/.local/bin:$PATH"
But this change is only temporary and valid only in the current shell session.
To make the change permanent, you need to define the $PATH variable in the shell configuration files. In most Linux distributions when you start a new session, environment variables are read from the following files:
In this example, we’ll set the variable in the ~/.bashrc file. Open the file with your text editor and add the following line at the end of it:
nano ~/.bashrc export PATH="$HOME/.local/bin:$PATH"
Save the file and load the new $PATH into the current shell session using the source command:
source ~/.bashrc
To confirm that the directory was successfully added, print the value of your $PATH by typing:
echo $PATH
yt-dlp is a youtube-dl fork based on the now inactive youtube-dlc. The main focus of this project is adding new features and patches while also keeping up to date with the original project.
Official GitHub repository: https://github.com/yt-dlp/yt-dlp
Installation:
sudo wget https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp -O /usr/local/bin/yt-dlp sudo chmod a+rx /usr/local/bin/yt-dlp
Yt-dlp usage similar as a youtube-dl. To show all supported video formats use command:
yt-dlp -F https://youtube.com/video-id
To download video use command with flag yt-dlp -f <firmat-id> <video-url>
yt-dlp -f 22 https://youtube.com/video-id
To download all videos from playlist and convert them to mp3 use command:
yt-dlp --ignore-errors --format bestaudio --extract-audio --audio-format mp3 --audio-quality 160K --output "%(title)s.%(ext)s" --yes-playlist 'YOUTUBE-PLAYLIST-URL'
Proxmox VE (Proxmox Virtual Environment) – this is a open source virtualization system, that uses a hypervisor KVM and LXC, based on Debian GNU Linux.
First edit your /etc/hosts file and write there your IP address:
sudo nano /etc/hosts
192.168.1.2 hostname.com hostname
Add Proxmox VE distribution to your operating system:
echo "deb http://download.proxmox.com/debian/pve buster pve-no-subscription" > /etc/apt/sources.list.d/pve-install-repo.list
Add key for Proxmox VE repository:
wget http://download.proxmox.com/debian/proxmox-ve-release-6.x.gpg -O /etc/apt/trusted.gpg.d/proxmox-ve-release-6.x.gpg
chmod +r /etc/apt/trusted.gpg.d/proxmox-ve-release-6.x.gpg # optional, if you have a non-default umask
Update packages list and upgrade your system:
apt update && apt full-upgrade
Install Proxmox VE packages:
apt install proxmox-ve postfix open-iscsi
Reboot your system
reboot
After reboot open your web borwser and go to https://192.168.1.2:8006, where 192.168.1.2 – is a IP address of your Proxmox computer, and 8006 – default Proxmox port.
That’s all, Proxmox VE successfully installed on your PC. Now you can create new Virtual machines…