Applicable to:
- Plesk for Linux
Symptoms
Upgrading, updating or installing components in Plesk Obsidian 18.0.66 or earlier returns an error
Note: The package from the error may differ
Fatal error during packages installation: Public key for plesk-php81-xdebug-3.4.2-1centos.7.250318.1306.x86_64.rpm is not installed
YumGPGCheckError: Public key for plesk-php81-xdebug-3.4.2-1centos.7.250318.1306.x86_64.rpm is not installed
Cause
Starting April 14th, 2025, Plesk repositories are using a new GPG key to improve security. Older releases without this key would fail to install new packages.
Resolution
The Plesk team has released a fix for this behavior. To resolve the issue, update Plesk to the latest version: How to update Plesk Obsidian to the latest build.
Manual workaround
-
Log in over SSH
-
Get the Plesk installer (download the appropriate version for the OS from http://autoinstall.plesk.com/Installer/3.69.0/)
# wget http://autoinstall.plesk.com//Installer/3.69.0/parallels_installer_CentOS_7_x86_64
-
Make the downloaded installer script executable:
# chmod +x ./parallels_installer_CentOS_7_x86_64
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Run the installer with the following command:
# ./parallels_installer_CentOS_7_x86_64 add --components php8.1 --disable-self-upgrade
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