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  3. Installation & Upgrade

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?
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