Installation & Upgrade
Articles about Plesk components updates and upgrades including OS.
- What are the recommended values for SWAP, RAM and Disk space while using Plesk Obsidian?
- How to update Plesk Obsidian to the latest build?
- Unable to update Plesk : The following signatures were invalid: XXXXX (untrusted public key algorithm: rsa3072)
- What applications from the APS catalog are being deprecated in Plesk Obsidian 18.0.71?
- Problem updating Plesk using Ubuntu Landscape
- Error when installing Plesk on Windows Server 2025: Unable to install the "panel-18.0.69.noarch" package.
- CentOS 7 to Almalinux 8 upgrade fails at: Enter username for Imunify360: alt-php at repo.alt.cloudlinux.com:
- Cannot install Plesk updates: Conflicting values set for option Signed-By regarding source
- Plesk installation or upgrade fails: Fatal error during packages installation: Public key is not installed
- CentOS 7 to AlmaLinux conversion fails in Plesk: Detected unknown GPG keys for target system repositories: http://autoinstall.plesk.com/plesk.gpg
- Unable to install Plesk with the Mariadb 11.4 repository.
- Unable to update Plesk Fatal error during installation. (Error code 1603) or CustomAction returned actual error code 1612
- Unable to update Plesk on Ubuntu 22: Failed to download the file http://autoinstall.plesk.com/pool/PHP_7.1.33_11/php71-ubt22.04-x86_64.inf3
- How can you prevent the 90-plesk-sieve.conf file from being overwritten during an update?
- Cannot install Plesk on Almalinux: Installation hangs on "Installing the package Site Import"
- Plesk or system upgrade fails: error processing package shim-signed
- Cannot perform a conversion on a Plesk server from CentOS 7 to Almalinux 8: missing_gpg_keys_inhibitor
- Unable to access Plesk Installer in a web browser: HTTP ERROR 502
- Previous Plesk installer call finished unsuccessfully. PUM will not perform any update operations until Plesk installation is fixed.
- Plesk fails to update or install packages: RPM database errors
- Plesk Updates page is not working: 504 Gateway Time-out
- Unable to convert CentOS 7 to AlmaLinux: The system has one or more network interface cards (NICs) using kernel-names (ethX)
- Debian 11 server cannot boot after Plesk automatic updates
- It is not possible to purchase Plesk extension from Extensions catalog with 403 error
- centos2alma conversion error with MariaDB 10.11.8 on a Plesk server
- CentOS 7 to AlmaLinux 8 conversion via Plesk centos2alma script fails: TuxCare is enabled
- Is it necessary to disable AppArmor for Plesk on a Debian 11 (Bullseye) or 12 (Bookworm)?
- Plesk provides error on update: Package tzdata is not configured yet.
- Plesk or system updates fail on CentOS 7: Could not resolve host: mirrorlist.centos.org
- How to install outdated PHP versions on Plesk servers with AlmaLinux OS?