#SUDO APT UPGRADE COMMAND NOT WORKING INSTALL#
#SUDO APT UPGRADE COMMAND NOT WORKING UPDATE#

Reinstall the package with this command: sudo apt install package-name For Lite editions of Zorin OS: sudo apt install zorin-os-lite-desktop.For non-Lite editions of Zorin OS: sudo apt install zorin-os-desktop.

One of these commands will make sure the core Zorin OS components are installed after any purge commands: If additional packages are removed, make sure to install them again before restarting the computer. If the text output mentions that it will remove several additional packages besides the one you are trying to fix, don't run it! If it's only a few packages, it's most likely safe. Please pay attention while using the purge command. If that didn’t resolve the issue, you can use this command to remove the package and its system-wide configuration files: sudo apt purge package-name

This can be convenient when the package has many reverse dependencies: sudo apt install -reinstall package-name Use this command to reinstall the package, replacing “package-name” with its correct name. There may be broken dependencies or cyclical dependencies. Sometimes, you may see some packages that are still broken and need to be installed manually or purged manually. Running this command with no specified package will remove any packages that were previously dependencies for other installed packages but are no longer required (either because the dependent package was removed, or because the package was updated to no longer depend on certain packages.) In addition to downloading and installing package updates, this downgrades or removes dependencies as necessary when upgrading packages. The -f option attempts to correct broken dependencies Other apt options use these indexes to determine which packages can be upgraded or installed.Ĭonfigures any unpacked but not yet configured packages. This is required when making changes to the system packages.Ĭlears out previously retrieved package files from the system’s local cache.įetches indexes from all configured sources. This prefix runs the following command with administrator privileges. If you see a red circle in the panel indicators, try opening the Terminal (Zorin Menu → Utilities → Terminal) and running these commands to fix the package manager: sudo apt clean You can resolve some package manager issues with a graphical app, but many require the command line. If your system complains about a failed upgrade, package manager conflicts, broken packages, or other package-related issues, there are several common fixes to these problems. Changing or removing packages incorrectly may break the system. Manage keyring files in instead (see apt-key(8)).Įxecuting: /tmp/apt-key-gpghome.fbmSbmsKSu/gpg.1.sh -keyserver instructions are intended for advanced users. I tried to fix the problem with the following command : sudo apt-key adv -keyserver -recv-keys 876292BF7F9C32BF but it doesn´t work and got this message Warning: apt-key is deprecated. They have been ignored, or old ones used instead.

W: Failed to fetch The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 876292BF7F9C32BF W: : Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details. GPG error: InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 876292BF7F9C32BF The repository is not updated and the previous index files will be used.

#SUDO APT UPGRADE COMMAND NOT WORKING UPDATE#

I got this error when i run: sudo apt update in terminal on ubuntu 22.04 W: An error occurred during the signature verification.

Sudo apt upgrade command not working