Tag: BlackArch / Arch Linux

Error “Cannot load modules/libphp7.so” (SOLVED)

Posted by Alex On February 19, 2021

Some Linux distributions have already started migrating to PHP 8. In some distributions the new version of PHP removes the old one, as a result of which the web server may stop working due to the fact that the files specified in the web server configuration are missing or renamed. Examples of errors you may encounter: httpd: Syntax error on...

How to choose the default Java version in Arch Linux

Posted by Alex On February 18, 2021

Several versions of the JDK and OpenJDK are available in the standard Arch Linux repositories (and derivative distributions). You can install one or more of them. Even if you have the latest version installed, some programs may install a different version of the JDK as their dependency - multiple versions are allowed, they do not cause conflicts. After that, you...

How to find out which package contains a file

Posted by Alex On February 18, 2021

How to find out which package a file is in Sometimes the name of the required utility does not coincide with the name of the package - this is especially the case when one package contains several programs. As a result, a problem arises - to find a package in which the required executable file or header file is present...

How to view package information in Arch Linux (BlackArch, Manjaro)

Posted by Alex On February 18, 2021

For each package in the system, you can find out such information as: version number, description, developer site, dependencies, recommended dependencies, packages with which there is a conflict, size, etc. The commands described in this post work the same in Arch Linux, as well as all distributions based on it, such as BlackArch, Manjaro and others. If you are interested...

How to downgrade to a previous kernel in Arch Linux

Posted by Alex On February 18, 2021

New Linux kernels bring support for new hardware and new features. But sometimes the kernel causes problems: it is completely or partially incompatible with existing software, especially video drivers often suffer from this, but this can also apply to any other software. A very recent example: NVIDIA drivers are partially incompatible with linux >= 5.9 at the time of writing....

How to change the default operating system in Arch Linux (for UEFI and systemd-boot)

Posted by Alex On February 18, 2021

This instruction applies to all boot loaders that implement the Boot Loader Specification and/or Boot Loader Interface, such as systemd-boot. If you have a modern computer (no older than seven years at the time of writing), then it most likely uses UEFI instead of BIOS and, therefore, uses systemd-boot to boot, which is usually mentioned in the Arch Linux installation...

Analogue of the --force option in pacman

Posted by Alex On February 18, 2021

If you update or install a new package, then if the files included in this package are already present in the file system, the update/install operation is aborted and the files that are already present in the system are displayed. In my practice, the reasons are usually packages installed with pip and the same packages that are trying to install...

How to completely uninstall a package along with dependencies on Arch Linux (as well as BlackArch and Manjaro)

Posted by Alex On February 18, 2021

This tutorial uses pacman as the package management (uninstallation) program, but you can also use pikaur or yay instead, since the options discussed are the same for all these package managers. Related: Automatic installation and update of AUR packages A typical command to uninstall a program that will remove all package files: sudo pacman -R PACKAGE Indeed it will remove...
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