Category: Linux

How to reboot a server in DigitalOcean

Posted by Alex On November 15, 2022

DigitalOcean offers various cloud technologies for developers, but of all the variety of services, I use only VPS (virtual private server). At the same time, due to the large number of cloud solutions, it is not intuitively clear how to perform such a simple action in DigitalOcean as rebooting the VPS. The server can be restarted by connecting to it...

Some program areas become transparent or invisible in guest OS Windows after upgrading to VirtualBox 7 (SOLVED)

Posted by Alex On October 26, 2022

The big update to VirtualBox 7 brought a lot of changes and, apparently, bugs. Some of them have already been covered in the post “Windows stopped booting in Virtual Machine after upgrading to VirtualBox 7 (SOLVED)”. While working with a guest OS Windows 11 in VirtualBox 7, new issues were discovered, some of which were resolved, and some are still...

Windows stopped booting in Virtual Machine after upgrading to VirtualBox 7 (SOLVED)

Posted by Alex On October 22, 2022

After upgrading to VirtualBox 7 (more precisely, to VirtualBox 7.0.2), the Windows 11 guest OS stopped booting. Windows 11 guest boot starts as usual, no errors are displayed. Moreover, you can hear the Windows logon sound, but the desktop is not shown. Boot freezes on the initial screen with UEFI messages. As a host (main) OS, I use Linux, namely...

How to rename a table in phpMyAdmin and MySQL

Posted by Alex On October 21, 2022

How to rename a table in phpMyAdmin Open the database and then navigate to the table you want to rename. When the table is open, select the “Operations” menu item. Locate the “Move table to (database.table)” section. Yes, renaming uses the same function as moving a table to another database. Enter a new table name and click the “Go” button....

phpMyAdmin error “Error: Undefined constant “SODIUM_CRYPTO_SECRETBOX_KEYBYTES”” (SOLVED)

Posted by Alex On October 20, 2022

On Arch Linux, when trying to use the phpMyAdmin 5.3 pre-release, I encountered an error: Error: Undefined constant "SODIUM_CRYPTO_SECRETBOX_KEYBYTES" Checking in Debian showed that there is no such problem with phpMyAdmin 5.3. The reason for the error is that sodium support is not enabled. How to enable sodium on Arch Linux (Manjaro, BlackArch) To enable sodium support in Arch Linux...

Error “error: GPGME error: No data. error: failed to synchronize all databases (unexpected error)” (SOLVED)

Posted by Alex On October 5, 2022

When updating the package cache with the pacman package manager, for example, when running the following command to update package information and update the system: sudo pacman -Syu An error may occur: error: GPGME error: No data :: Synchronizing package databases... core 155.5 KiB 444 KiB/s 00:00 [######################] 100% extra is up to date community is up to date multilib...

How to downgrade to a previous kernel version in Arch Linux. How to install and switch to linux-lts

Posted by Alex On August 25, 2022

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 suffer from this, but this can also apply to any other software, for example, VirtualBox. At the time of the release of the linux 5.9 kernel, NVIDIA drivers were partially incompatible...

How to modify images on the Linux command line

Posted by Alex On August 17, 2022

ImageMagick is a powerful program and library for creating and modifying images on the command line. This section will cover the commands and options that you can use to imitate a drawing with paints, pencil, charcoal, make an image black and white; rotate the image to an arbitrary angle or display the image horizontally or vertically; resize the image; add...

How to add a caption to a large number of images

Posted by Alex On August 16, 2022

Bulk add captions to images The article “How to add text to images in ImageMagick” shows many examples of adding text with the ability to change all its properties using the “magick” program. The “magick” utility is part of the ImageMagick package. For details on installing ImageMagick, including which dependencies you need to install to support the maximum number of...

ImageMagick guide: installing, using, and troubleshooting

Posted by Alex On August 16, 2022

Table of contents 1. How to install ImageMagick with all dependencies to support the maximum number of formats 1.1 What is Image Magic 1.2 Installing ImageMagick on Linux 1.3 How to fix “magick: command not found” 1.4 ImageMagick: use magick or convert command? 1.5 Why do animate, compare, composite, conjure, convert, display, identify, import, mogrify, montage, stream commands no longer work in ImageMagick 2. The...
Loading...
X