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Known Blockers

The following is a list of install states which the script will intentionally prevent you from upgrading with. This is because the script cannot garantuee a successful upgrade with these conditions in place.

Basic checks

The following conditions are assumed to be in place any time you run this script:

  • You have CentOS 7.9 or greater installed.
    • We DO NOT support alternative RHEL 7 (including CloudLinux) variants.
  • You are logged in as root.

Disk space

At any given time, the upgrade process may use at or more than 3 GB. If you have a complex mount system, we have determined that the following areas may require disk space for a period of time:

  • /boot: 120 MB
  • /usr/local/cpanel: 1.5 GB
  • /var/lib: 3 GB

Unsupported software

The following software is known to lead to a corrupt install if this script is used. We block elevation when it is detected:

  • cPanel CCS Calendar Server - Requires Postgresql < 10.0
  • Postgresql - Elevate upgrades you to Postgresql 10.x which makes it impossible to downgrade to a 9.x Postgresql.

Things you need to upgrade first.

  • nameserver: cPanel provides support for a myriad of nameservers. (MyDNS, nsd, bind, powerdns). On AlmaLinux 8, it is preferred that you always be on PowerDNS.
    • Mitigation: /scripts/setupnameserver powerdns
  • MySQL: 99% of existing AlmaLinux 8 cPanel installs end up with MySQL 8. We recommend you upgrade your MySQL to 8.0 if possible.
    • MariaDB: If you have already switched to MariaDB, you have no way of reaching MySQL. Be sure you are on 10.3 or better before moving to AlmaLinux 8.