software errors / problem solutions

Windows guest OS freezes in VirtualBox 7 (SOLVED)

Posted by Alex On May 22, 2023

Upgrading to VirtualBox 7 brought bugs to guest operating systems, some of which are discussed in the notes: Some program areas become transparent or invisible in guest OS Windows after upgrading to VirtualBox 7 (SOLVED) Windows stopped booting in Virtual Machine after upgrading to VirtualBox 7 (SOLVED) After fixing the problems with the actually inoperable Windows 11 guest, other, slightly...

Error “No such file or directory: AH02454: FCGI: attempt to connect to Unix domain socket /run/php/php8.1-fpm.sock (*:80) failed” (SOLVED)

Posted by Alex On January 29, 2023

Debian and derivative distributions (Ubuntu, Linux Mint, Kali Linux, and many others) may experience a “FCGI: attempt to connect to Unix domain socket /run/php/php8.1-fpm.sock (*:80) failed” error when migrating from PHP 8.1 to PHP 8.2. Apache web server log sudo tail /var/log/apache2/error.log contains the following error messages: [Sun Jan 29 03:05:45.213609 2023] [proxy:error] [pid 1313500] (2)No such file or directory:...

Error “error: failed to commit transaction (invalid or corrupted package)” (SOLVED)

Posted by Alex On December 7, 2022

When using pacman while updating packages, for example sudo pacman -Syu An error may occur: error: binutils: signature from "Frederik Schwan <frederik.schwan@linux.com>" is unknown trust :: File /var/cache/pacman/pkg/binutils-2.39-4-x86_64.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)). Do you want to delete it? [Y/n] If you choose the proposed option – remove an invalid or damaged package – then the update...

Error “TypeError: ‘AURPackageInfo’ does not have attribute ‘submitter’” (SOLVED)

Posted by Alex On December 5, 2022

pikaur is a utility for facilitating the installation and updating of programs from the AUR. You can read more about pikaur in the article “Automatic installation and update of AUR packages”. pikaur's options are similar to pacman, but you don't need to use sudo. For example, updating all packages is done with the following command: pikaur -Syu On my Arch...

“Initramfs unpacking failed: invalid magic at start of compressed archive” error (SOLVED)

Posted by Alex On November 28, 2022

This article will show you how to fix the Linux won't boot error. In this case, the solution is shown using Kali Linux as an example, but the steps are also applicable to Debian, Ubuntu, Linux Mint, and derivative distributions. An error occurred while booting Linux: Initramfs unpacking failed: invalid magic at start of compressed archive Kernel panic — not...

dpkg: error: fgets gave an empty string from ‘/var/lib/dpkg/triggers/Unincorp’ (SOLVED)

Posted by Alex On November 28, 2022

When trying to use the apt package manager, for example: sudo apt install linux-image-amd64 An error occurred: E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem. The error is caused by disk problems or package upgrade failure. When trying to use the recommended command: sudo dpkg --configure -a There was another error: dpkg:...

ImageMagick error on Windows: “magick: unable to open image ”test’: No such file or directory @ error/blob.c/OpenBlob/3565. magick: no decode delegate for this image format `’ @ error/constitute.c/ReadImage/741.” (SOLVED)

Posted by Alex On November 3, 2022

If in Windows 11 open CMD: cmd And then run the command: magick '.\Для теста.jpg' test.png An error will be received that there is no such file or directory: magick: unable to open image ''.\╨Ф╨╗╤П': No such file or directory @ error/blob.c/OpenBlob/3565. magick: no decode delegate for this image format `' @ error/constitute.c/ReadImage/741. You can see that non-Latin characters are...

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...

Error “The ‘<‘ operator is reserved for future use.” (SOLVED)

Posted by Alex On October 25, 2022

Analog “<” for PowerShell On Linux, you can use the following construct: COMMAND1 < FILE1 In this case, COMMAND1 will be executed with FILE1 as the input source instead of the keyboard, which is the normal standard input source. The “<” operator corresponds to the use of “|” to be passed to standard input. For example, the following commands are...

mysqldump in PowerShell corrupts non-Latin characters when exporting database (SOLVED)

Posted by Alex On October 23, 2022

mysqldump is a MySQL utility for creating database and table backups. Unlike phpMyAdmin, which, although it offers a web interface, is a slower tool due to the limitations of intermediates such as PHP and Apache, mysqldump is a much more efficient tool without limitations for backing up very large data. But on Windows, mysqldump has some nuances. Due to the...