How to make an in-place upgrade of a Plesk server from CentOS 7 to AlmaLinux 8?

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    Unknown User

    You state ELevate does not support a further upgrade to AL9/RHEL9/RL9.

    https://wiki.almalinux.org/elevate/ELevate-quickstart-guide.html

    The ELevate website states differently. Will your Plesk script be supporting a further upgrade 8 to 9 or not?

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    Permanently deleted user

    Hello,

    Thank you for your question. The direct upgrade path from CentOS 7 to Almalinux 9 is not supported. We will consider adding the possibility of adding the upgrade path CentOS 7 -> Almalinux 8 -> Almalinux 9 in the future. However, currently, we are fully concentrated on the CentOS7 -> Almalinux 8 upgrade scenario. 

    The article was updated with this information.

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    Gilberto Greppi

    Hello,
    does this also work for upgrading RHEL 7.9 to RHEL 8.8?
    If it doesn't work, and I need to migrate Plesk from a RHEL 7.9 server to a new one RHEL 8.8  (or directly RHEL 9.2), is there a migrate-procedur?

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    Permanently deleted user

    Hello Gilberto,

    Such an upgrade path is not supported for now. You may use Plesk Migrator extension to transfer all the data to a server with the newer OS instead: https://support.plesk.com/hc/en-us/articles/12377889325719.

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    Mikhail Romashko

    no success with upgrade

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    Mikhail Romashko

    I got unknown error during the process

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    Roberto Biagiotti

    Thank you for providing the script for in-place upgrading a Plesk server from CentOS 7 to AlmaLinux 8. I am using CloudLinux 7.9 (Boris Yegorov) based on Plesk Obsidian v18.0.59_build1800240229.10 os_CentOS 7.

    I would like to know if this script is compatible with CloudLinux 7.9. If not, are there any plans to make it compatible in the future?

     

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    Lukáš Švec

    How much extra space will it take to upgrade to a new OS?

    If I have about 7GB of free space, how much free space approximately will remain after the upgrade?

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    Leonid Gukhman

    @Lukáš Švec 

    Hi, I got 1.5GB of disk space filled during the conversion on a test server. To be on a safe side, I would suggest at least 2GB, so you should be fine with 7GB.

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    Ali Rezaye (Edited )

    Hi there,

    I am getting below error while trying to doing instructions (CentOS to AlmaLinux:

    //// error
    [root@symbiota2 ~]# clear
    [root@symbiota2 ~]# ls
    README.pdf  centos2alma  centos2alma-1.3.1.zip  parallels
    [root@symbiota2 ~]# chmod 7555 centos2alma
    [root@symbiota2 ~]# ./centos2alma
    Doing preparation checks...
    Preparation checks failed: Exception during checking of required pre-conversion condition 'checking if the last installed kernel is in use'
    Traceback (most recent call last):
      File "/root/centos2alma/pleskdistup/common/src/action.py", line 471, in make_checks
        if not check.do_check():
      File "/root/centos2alma/pleskdistup/common/src/action.py", line 443, in do_check
        return self._do_check()
      File "centos2almaconverter/actions/common_checks.py", line 88, in _do_check
        last_installed_kernel_version = self._get_last_installed_kernel_version()
      File "centos2almaconverter/actions/common_checks.py", line 85, in _get_last_installed_kernel_version
        return max(versions)
    ValueError: max() arg is an empty sequence

    The above exception was the direct cause of the following exception:

    Traceback (most recent call last):
      File "pleskdistup/main.py", line 107, in required_conditions_satisfied
        failed_checks = check_flow.make_checks()
      File "/root/centos2alma/pleskdistup/common/src/action.py", line 474, in make_checks
        raise RuntimeError(f"Exception during checking of required pre-conversion condition {check.name!r}") from e
    RuntimeError: Exception during checking of required pre-conversion condition 'checking if the last installed kernel is in use'

    Conversion can't be performed due to the problems noted above

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    Daniel Neveloff (Edited )

    Hello,

    Getting the same error as above. Can confirm that I'm attempting an upgrade from Centos 7.9.2009. Do you have any input or additional insight on the error?

    Here are some commands and outputs that may assist.

    /usr/bin/rpm -q -a kernel kernel-plus kernel-rt-core

    kernel-3.10.0-693.el7.x86_64
    kernel-3.10.0-693.21.1.el7.x86_64
    kernel-3.10.0-693.2.2.el7.x86_64

    rpm -q -a kern*

    kernel-tools-3.10.0-693.21.1.el7.x86_64
    kernel-tools-libs-3.10.0-693.21.1.el7.x86_64
    kernel-headers-3.10.0-693.21.1.el7.x86_64
    kernel-3.10.0-693.el7.x86_64
    kernel-3.10.0-693.21.1.el7.x86_64
    kernel-3.10.0-693.2.2.el7.x86_64



    Thank you!

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    Richard Fincher

    I have tried two production boxes so far, and both worked without incident, once I removed the no-longer-compatible versions of PHP/5.x and PHP/7.0.x

    I have more boxes still to do, which are more complex than the first two but I'm optimistic that the script will perform as intended

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    Sean Bremner

    Would the Plesk team be able to assist me with this migration if I signed up for the Technical Support Subscription?

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