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How to perform dist-upgrade procedure on Linux server with Plesk?

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Marc López
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Plesk Onyx for Linux kb: auxiliary ABT: Group A Plesk Obsidian for Linux

Applicable to:

  • Plesk Onyx for Linux
  • Plesk Obsidian for Linux

How to perform a dist-upgrade?

Warning: The dist-upgrade procedure is not suggested and instead the suggested approach is the migration as can be seen here: Plesk Migration and Transfer Guide

Warning: The dist-upgrade procedure can not be performed in a containerized environment. If this is not known, contact the server provider in order to know if the server or the environment is a container.

The dist-upgrade procedure is supported in Plesk as per the following versions:

Supported for Plesk version
Ubuntu 18 > Ubuntu 20 Plesk Obsidian 18.0.33 and above
Ubuntu 16 > Ubuntu 18 Plesk Obsidian 18.0.30 and above
Debian 9 > Debian 10 Plesk Obsidian 18.0.30 and above
Ubuntu 14 > Ubuntu 16 Plesk 17.8
Debian 8 > Debian 9 Plesk 17.8

If you have never performed dist-upgrade before, it is recommended to test it first as follows:

If you want or need Plesk to assist on this task or to do it on your behalf, it can be requested to Plesk Professional Services team here: Plesk Professional Services: Administrative Services

Ubuntu distributions

Dist-upgrade from Ubuntu 14 to Ubuntu 16

Warning: dist-upgrade from Ubuntu 14 to Ubuntu 16 and is supported by Plesk Onyx 17.8 version.

Warning: During an upgrade from Ubuntu 14 to Ubuntu 16, system PHP 5.x shipped by OS vendor will be upgraded to PHP 7.x. So to avoid any PHP compatibility issues, before an upgrade, it is highly recommended to switch all sites having PHP handler 5x by OS vendor to corresponding custom PHP handlers. Please refer to these KB articles for details: How to configure PHP handlers in Plesk for Linux? and How to apply new PHP handler to multiple domains via CLI?

Warning: Also, MySQL server upgrade can fail during the upgrade. The issue and its resolution are described in: Dist-upgrade from Ubuntu 14 to 16 fails: Sub-process /usr/bin/dpkg returned an error code (1).

Warning: if PHP by OS vendor was updated from third-party sources prior to dist-upgrade, it may break webmail functionality.

  1. Create a full server backup. Before the upgrade, make a full server backup. Also notify the customers about upcoming downtime of one to three hours.

  2. Run below script and follow the wizard:

    # /opt/psa/bin/distupgrade.helper.ubt14-ubt16.x64.sh

    The script logs all its actions in /var/log/plesk/install/plesk-distupgrade.log .

  3. During the script execution you will be asked to reboot the server. Reboot the server.

  4. After the server reboot, run the script once again.

Dist-upgrade from Ubuntu 16 to Ubuntu 18

Warning: dist-upgrade from Ubuntu 16.04 to Ubuntu 18.04 is supported by Plesk Obsidian since 18.0.30 version.

Note: During this procedure, neither MySQL or MariaDB are upgraded. The MariaDB-10.x or MySQL-8 is done at your own will and risk.

Preparing server for upgrade

  1. Create a full server backup. Before the upgrade, make a full server backup. Also notify the customers about upcoming downtime of one to three hours.

  2. Update the current system to the latest available versions:

    # apt-get update && apt-get upgrade

    Note: the dist-upgrade procedure is supported (and has been tested) for Plesk version since 18.0.30

Performing the dist-upgrade

  1. Update source.list file and configure the repository for the OS release that is going to upgrade to:

    # cat /etc/apt/sources.list
    deb http://archive.ubuntu.com/ubuntu bionic main restricted universe
    deb http://archive.ubuntu.com/ubuntu bionic-updates main restricted universe
    deb http://security.ubuntu.com/ubuntu bionic-security main restricted universe multiverse
    deb http://autoinstall.plesk.com/PSA_18.0.31/ bionic all
    deb http://autoinstall.plesk.com/ubuntu/PHP70_17 bionic all
    deb http://autoinstall.plesk.com/PHP71_17/ bionic all
    deb http://autoinstall.plesk.com/PHP72_17/ bionic all
    deb http://autoinstall.plesk.com/PHP73_17/ bionic all
    deb http://autoinstall.plesk.com/PHP74_17/ bionic all
    deb http://autoinstall.plesk.com/debian/SITEBUILDER_17.8.12 all all
    deb [arch=amd64] http://autoinstall.plesk.com/PMM_0.1.11 bionic all
    deb [arch=amd64] http://autoinstall.plesk.com/NODE_0.0.2 all all
    deb https://packages.grafana.com/oss/deb stable main
    deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable

    Note: The example above is for an installed version of Plesk Obsidian 18.0.31. The correct link for each installed version must be modified accordingly.

    For example: http://autoinstall.plesk.com/PSA_x.y.z/ 

    Whereas the version x.y.z is the current Plesk installed version, which can be found in the output of the command:

    # plesk -v

  2. Update the repositories:

    # apt-get update

  3. Upgrade the kernel:

    # apt-get install linux-generic

  4. Reboot the server.

  5. Update dpkg package:

    # apt-get install dpkg

  6. Update apt package:

    # apt-get install apt

  7. Get the Plesk packages that need to be upgraded. It can be done manually from the URL present in the /etc/apt/sources.list.d/plesk.list file.

  8. Upgrade the list of packages, for example:

    # apt-get install plesk-php72 plesk-php73 plesk-php74 plesk-core plesk-core-utilities plesk-backup-utilities pp18.0.31-bootstrapper sw-engine-cli-2.31 libcurl4 plesk-service-node-utilities sw-collectd apache2 awstats psa-drweb-configurator psa-horde psa-imp psa-ingo psa-kronolith psa-mnemo psa-passwd psa-php-configurator psa-proftpd psa-turba libapache2-mod-passenger-plesk passenger plesk-config-troubleshooter plesk-git-http libcgi-fast-perl libcgi-pm-perl libcurses-perl libcurses-ui-perl libencode-locale-perl libfcgi-perl libfile-copy-recursive-perl libhtml-parser-perl libhtml-tagset-perl libhtml-template-perl libhttp-date-perl libhttp-message-perl libio-html-perl liblwp-mediatypes-perl libnet-xwhois-perl libterm-readkey-perl liburi-perl

    Note: If prompted, the /etc/awstats/awstats.conf, if it has not been manually modified, install config made by package maintainers

    Note: When prompted, you should keep previous version of /etc/apache2/apache2.conf

    Warning: after this operation apache2 won't start due to problems with http_proxy module.

    1. Disable it by removing file /etc/apache2/mods-enabled/proxy_http.load

      # rm /etc/apache2/mods-enabled/proxy_http.load

    2. Start apache:

      # systemctl start apache2.service

  9. Upgrade the following packages:

    # apt-get install sw-nginx sw-cp-server plesk-engine plesk-control-panel

  10. Execute the dist-upgrade command:

    # apt-get dist-upgrade

  11. Update Plesk to next available version:

    # plesk installer update

  12. Reboot the server.

  13. Check that Plesk and all its services are working.

Dist-upgrade from Ubuntu 18 to Ubuntu 20

Warning: The dist-upgrade process from Ubuntu 18.04 to Ubuntu 20.04 is supported by Plesk Obsidian 18.0.33 version.

Warning: The dist-upgrade process from Ubuntu 18.04 to Ubuntu 20.04 is supported with MariaDB scenario only.

Preparing server for upgrade

  1. Create a full server backup. Before the upgrade, make a full server backup (which is includes a full backup of all the databases). Also notify the customers about upcoming downtime of one to three hours.

  2. Remote management module must be installed on the server (This is because in some tests, sshd service could not be started during the process)

  3. Connect and perform the process connected as root or by using the # su - or # sudo su -command.

  4. Uninstall unsupported components like docker, PHP below 7.0, Watchdog (Ubuntu users only)... It can be done through Plesk installer.

    Note: More information can be found here: Software Requirements for Plesk Obsidian

  5. Temporary install msmtp copmponent instead of Postfix. It can be done through Plesk installer or by using the command:

    # plesk installer add --components msmtp

  6. Add to the mariadb config file (Usually /etc/mysql/my.cnf) the string innodb_fast_shutdown=0 in the [mysqld] section.

  7. Restart the DB server to apply changes:

    # systemctl stop mariadb.service ; systemctl start mariadb.service

  8. Update the current system to the latest available versions:

    # apt-get update && apt-get upgrade

  9. Remove all plesk-related repos from /etc/apt/sources.list.d/

  10. Stop grafana service:

    # systemctl stop grafana-server.service

Performing the dist-upgrade

  1. Update source.list file and configure the repository for the OS release that is going to upgrade to:

    # cat /etc/apt/sources.list
    deb http://ftp.halifax.rwth-aachen.de/ubuntu/ focal main restricted universe
    deb http://ftp.halifax.rwth-aachen.de/ubuntu/ focal-updates main restricted universe
    deb http://ftp.halifax.rwth-aachen.de/ubuntu/ focal-security main restricted universe
    deb http://autoinstall.plesk.com/PSA_18.0.33/ focal all
    deb http://autoinstall.plesk.com/pool/PHP_7.1.33_96 focal all
    deb http://autoinstall.plesk.com/pool/PHP_7.2.34_150 focal all
    deb http://autoinstall.plesk.com/PHP73_17/ focal all
    deb http://autoinstall.plesk.com/PHP74_17/ focal all
    deb http://autoinstall.plesk.com/PHP80_17/ bionic all
    deb https://packages.grafana.com/oss/deb stable main
    deb [arch=amd64] http://autoinstall.plesk.com/PMM_0.1.11 focal all
    deb [arch=amd64] http://autoinstall.plesk.com/NODE_0.0.2 all all
    deb [arch=amd64] http://autoinstall.plesk.com/RUBY_0.0.2 focal all

    Note: The example above is for an installed version of Plesk Obsidian 18.0.33. The correct link for each installed version must be modified accordingly.

    For example: http://autoinstall.plesk.com/PSA_x.y.z/ 

    Whereas the version x.y.z is the current Plesk installed version, which can be found in the output of the command:

    # plesk -v

  2. Update the repositories:

    # apt-get update

  3. Upgrade the kernel:

    # apt-get install linux-generic

  4. Update MariaDB to the next major version provided by vendor:

    # apt-get install mariadb-server-10.3

  5. Remove from the mariadb config file (Usually /etc/mysql/my.cnf) the string innodb_fast_shutdown=0 in the [mysqld] section, added at the begining of this process.

  6. Install udev package:

    # apt-get install udev

    Warning: The udev package installation may fail on Ubuntu systems which may be needed to be solved manually. If that is the case, the following should be checked and applied:

    1. At line 26 in the /lib/systemd/system/systemd-udevd.service file, the following string should be changed:

    2. From:

      CONFIG_TEXT: ExecReload=udevadm control --reload --timeout 0

    3. To:

      CONFIG_TEXT: ExecReload=/bin/udevadm control --reload --timeout 0

    4. And execute the following command:

      # apt-get -f install

  7. Install Systemd package:

    # apt-get install systemd

  8. Reboot the server to the new kernel:

    # shutdown -r now

    Note: This will help to avoid problems with services that already loaded old libc6/libstdc libraries

    Warning: MariaDB won't start till the reboot is performed.

  9. Remove packages that were installed by dependencies and not needed anymore:

    # apt-get autoremove

  10. Upgrade packages:

    # apt-get upgrade

    Note: If prompted, choose "latest" for LXD if this is unknown.

    Note: When prompted, you should keep the previous version of Spamassassin configuration file.

  11. Remove packages that were installed by dependencies and not needed anymore:

    # apt-get autoremove

  12. Execute the dist-upgrade command:

    # apt-get dist-upgrade

    Note: At this point, plesk-mail-pc-driver, postfix, drweb, kav packages will be removed because there is already a vendor's Postfix that will be used in Ubuntu 20 (which version is lower that the psa-postfix installed in Ubuntu 18)

  13. Remove packages that were installed by dependencies and not needed anymore:

    # apt-get autoremove

  14. Update Plesk to the next available version finishing the dist-upgrade process:

    # plesk installer update

  15. Check that all the Plesk components are installed and if not (Like for example in case there were components uninstalled like the ones in the dist upgrade step), select and re-install them again through the plesk installer along with Postfix which was replaced by msmtp at the beginning:

    # plesk installer

  16. Reboot the server:

    # shutdown -r now

  17. Check that Plesk and all its services are working.

Debian distributions

Dist-upgrade from Debian 8 to Debian 9

Warning: dist-upgrade from Debian 8 to Debian 9 is supported by Plesk Onyx 17.8 version.

Warning: if PHP by OS vendor was updated from third-party sources prior to dist-upgrade, it may break webmail functionality.

Preparing server for upgrade

  1. Create a full server backup. Before the upgrade, make a full server backup. Also notify the customers about upcoming downtime of one to three hours.

  2. Consider to remove sources list backup files which might be left from the previous dist-upgrade:

    • /etc/apt/sources.list.saved_by_plesk_distupgrade
    • /etc/apt/sources.list.d/50sw_autoinstaller.list.saved_by_plesk_distupgrade`

  3. Run pre-upgrade helper script and prepare Plesk and the system for the upgrade:

    # /opt/psa/bin/distupgrade.helper.deb8-deb9_pre.x64.sh

    The script logs all its actions in /var/log/plesk/install/plesk-distupgrade.log.

Performing the dist-upgrade

  1. Update source.list file and configure repository for the OS release that is going to upgrade to:

    # cat /etc/apt/sources.list
    deb http://deb.debian.org/debian stretch main contrib non-free
    deb http://security.debian.org/debian-security/ stretch/updates main contrib non-free
    deb http://deb.debian.org/debian stretch-updates main contrib non-free

  2. Update information about system packages:

    # apt-get update

  3. Upgrade the system:

    # /opt/psa/bin/distupgrade.helper.deb8-deb9.x64.sh

    This command will perform a complete upgrade of the system, install the newest available versions of all packages and resolve all possible dependency changes between packages in different releases.

    During the upgrade the system might produce prompts like:

    CONFIG_TEXT: Configuration file /etc/mysql/my.cnf
    ==> Modified (by you or by a script) since installation.
    ==> Package distributor has shipped an updated version.
    What would you like to do about it ?
    Your options are:
    Y or I : install the package maintainer's version
    N or O : keep your currently-installed version
    D : show the differences between the versions
    Z : start a shell to examine the situation
    The default action is to keep your current version.
    *** my.cnf (Y/I/N/O/D/Z) [default=N] ?

    Choose to replace configuration files with a new one (answer Y).

Finalizing the upgrade

  1. Run post-upgrade helper script:

    # /opt/psa/bin/distupgrade.helper.deb8-deb9_post.x64.sh

    Note: This script is already called during the execution of /opt/psa/bin/distupgrade.helper.deb8-deb9.x64.sh, run it to verify that everything was successfully done. Its actions are logged in /var/log/plesk/install/plesk-distupgrade.log too.

  2. Reboot the server.

  3. Check that Plesk and all its services are working.

Dist-upgrade from Debian 9 to Debian 10

Warning: dist-upgrade from Debian 9 to Debian 10 is supported by Plesk Obsidian 18.0.30 version.

Warning: The dist-upgrade process from Debian 9 to Debian 10 is supported with MariaDB scenario only.

Preparing server for upgrade

  1. Create a full server backup. Before the upgrade, make a full server backup. Also notify the customers about upcoming downtime of one to three hours.

  2. Connect and perform the process connected as root or by using the # su - or # sudo su -command.

  3. Uninstall unsupported components like docker, PHP below 7.0... (It can be done through Plesk installer).

    Note: More information can be found here: Software Requirements for Plesk Obsidian

  4. Temporary install msmtp copmponent instead of Postfix. It can be done through Plesk installer or by using the command:

    # plesk installer add --components msmtp

  5. Add to the mariadb config file (Usually /etc/mysql/my.cnf) the string innodb_fast_shutdown=0 in the [mysqld] section.

  6. Restart the DB server to apply changes:

    # systemctl stop mariadb.service ; systemctl start mariadb.service

  7. Update the current system to the latest available versions:

    # apt-get update && apt-get upgrade

  8. Remove all plesk-related repos from /etc/apt/sources.list.d/

  9. Stop grafana service:

    # systemctl stop grafana-server.service

Performing the dist-upgrade

  1. Update source.list file and configure the repository for the OS release that is going to upgrade to:

    # cat /etc/apt/sources.list
    deb http://security.debian.org/debian-security buster/updates main contrib non-free
    deb http://deb.debian.org/debian/ buster-updates main contrib non-free
    deb http://deb.debian.org/debian/ buster main contrib non-free
    deb http://autoinstall.plesk.com/PSA_18.0.31/ buster all
    deb http://autoinstall.plesk.com/debian/SITEBUILDER_17.8.12 all all
    deb http://autoinstall.plesk.com/PHP71_17/ buster all
    deb http://autoinstall.plesk.com/PHP72_17/ buster all
    deb http://autoinstall.plesk.com/PHP73_17/ buster all
    deb http://autoinstall.plesk.com/PHP74_17/ buster all
    deb https://packages.grafana.com/oss/deb stable main
    deb [arch=amd64] http://autoinstall.plesk.com/PMM_0.1.11 buster all
    deb [arch=amd64] http://autoinstall.plesk.com/NODE_0.0.2 all all
    deb [arch=amd64] http://autoinstall.plesk.com/RUBY_0.0.2 buster all

    Note: The example above is for an installed version of Plesk Obsidian 18.0.31. The correct link for each installed version must be modified accordingly.

    For example: http://autoinstall.plesk.com/PSA_x.y.z/ 

    Whereas the version x.y.z is the current Plesk installed version, which can be found in the output of the command:

    # plesk -v

  2. Update the repositories:

    # apt-get update

  3. Upgrade the kernel:

    # apt-get install linux-image-amd64

  4. Update MariaDB to the next major version provided by vendor:

    # apt-get install mariadb-server-10.3

  5. Remove from the mariadb config file (Usually /etc/mysql/my.cnf) the string innodb_fast_shutdown=0 in the [mysqld] section, added at the begining of this process.

  6. Reboot the server to the new kernel:

    # shutdown -r now

    Warning: MariaDB won't start till the reboot is performed.

  7. Upgrade packages:

    # apt-get upgrade

    Note: When prompted, you should keep the previous version of Rsyslog configuration file.

    Note: When prompted, you should keep the previous version of Spamassassin configuration file.

  8. Remove packages that were installed by dependencies and not needed anymore:

    # apt-get autoremove

  9. Execute the dist-upgrade command:

    # apt-get dist-upgrade

    Note: At this point, there is a possibility that components are removed, like for example: php7.0-curl plesk-mail-pc-driver postfix psa-drweb-configurator psa-spamassassin which is because on Debian 10 vendor's postfix is used and its version is lower than postfix shipped by Plesk for Debian 9

  10. Update Plesk to next available version finishing the dist-upgrade process:

    # plesk installer update

  11. Check that all the Plesk components are installed and if not (Like for example in case there were components uninstalled like the ones in the dist upgrade step), select and re-install them again through the plesk installer along with Postfix which was replaced by msmtp at the beginning:

    # plesk installer

  12. Reboot the server:

    # shutdown -r now

  13. Check that Plesk and all its services are working.

  14. Use the following commands to regenerate web server as well as DNS configuration files if needed:

    # plesk repair web

    # plesk repair dns

Warning: Most of APS application will not work with PHP 7.x

Comments

73 comments

Sort by Date Votes
  • Avatar
    Jan Bludau

    How to make a dist-upgrade from Plesk 17.8.11 i can't find the dist-upgrade helper script on the mentationed position.

    0
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  • Avatar
    Nikita Nikushkin

    Hi @Jan Bludau,

    Could please provide us with the OS?

    Thank you!

    0
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  • Avatar
    Oliver Mueller

    Still no migration path for Ubuntu 16.04 to 18.04? It is almost a year ago, that Ubuntu 18.04 is supported by Plesk (fresh installation). Is there any ETA on this topic? A migration to another server with fresh installed plesk is no option for us. We really need this upgrade/migration.

    1
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  • Avatar
    Ivan Postnikov

    Hello @Oliver,

    Thank you for the feedback.

    I will need some time to clarify if there's the exact ETA.

    Me or my colleague will let you know when receive the information.

    0
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  • Avatar
    Oliver Mueller

    Still no ETA? Even an approximation would help.

    1
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  • Avatar
    Ivan Postnikov

    Hello @Oliver,

    I will clarify the plans for this functionality and will update write to them here, after I'll get any news.

    -1
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  • Avatar
    Ivan Postnikov

    Hello @Oliver,

    According to the information I got, the Development team still has plans to implement this functionality.

    The ETA will be available later. 

    News will be added to this article.

    -1
    Comment actions Permalink
  • Avatar
    Elisabeth Kahnert

    Upgrade from Ubuntu 16 to Ubuntu 18 is needed

    1
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  • Avatar
    Julian Bonpland Mignaquy

    @Elisabeth,

    Currently, Plesk does not support dist-upgrade from Ubuntu 16.04 to Ubuntu 18.04 yet. Dist-upgrade support from Ubuntu 16.04 to Ubuntu 18.04 to Plesk, will be added in a future product update.

    -2
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  • Avatar
    Elisabeth Kahnert

    @Julian Bonpland Mignaquy

    Yes, and this text is more than 1 year old.

    1
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  • Avatar
    Sandonanet s.n.c.

    Hi, i have Ubuntu 14.04.6 LTS‬ with Plesk Onyx Version 17.8.11 and i want upgrade my system to ubuntu 16.04 LTS.

    I have performed the procedure you indicated and run the script /opt/psa/bin/distupgrade.helper.ubt14-ubt16.x64.sh

    The procedure is performed correctly except the update of mysql 5.5 to 5.7 which remains an error.

    I have restored the initial backup of the machine and retried the procedure several times but the error persists.

    I also tried to manually update mysql from version 5.5 to 5.6 but the procedures I found on the net do not work.

    Can anyone help me? Thank you

     

     

    0
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  • Avatar
    Ivan Postnikov

    Hello @Sandonanet s.n.c.,

    Try steps for Debian from this article: https://support.plesk.com/hc/en-us/articles/213403429-How-to-upgrade-MySQL-5-5-to-5-6-5-7-or-MariaDB-5-5-to-10-0-10-1-10-2-on-Linux-

    In case this wouldn't help, I can suggest preparing a new server with the required OS, install fresh Plesk and migrate domains: https://support.plesk.com/hc/en-us/articles/213912645-Plesk-Migration-and-Transfer-Guide

    These operations may also be done on a paid basis by Plesk Professional services team: https://www.plesk.com/professional-services/

    0
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  • Avatar
    Dirk Riehle

    +1 for getting an upgrade path from Ubuntu 16.04 to 18.04. It is about time.

    1
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  • Avatar
    Oliver Mueller

    Is there any news about the upgrade capability from Ubuntu 16.04 to 18.04? Some status or progress information? An idea of an ETA?

     

    Ubuntu 20.04 is coming out in 3 weeks and yet, there is not upgrade to its predecessor. This is really disappointing. So we customer can expect that an upgrade to 20.04 will arrive in 2022 or later? It is really frustrating to be forced to work with such an old system. Currently it is 4 years old. Many Ubuntu packages are really outdated and even though it is an LTS and Ubuntu delivers at least security packages, this is NOT true for all packages. In fact the very most packages are not included within this support. Basically our server is running with a lot of very outdated and unsupported packages now. This is a big security problem:

    # ubuntu-support-status --show-unsupported
    Support status summary of 'plesk-server':

    You have 714 packages (62.2%) supported until April 2021 (Canonical - 5y)
    You have 3 packages (0.3%) supported until April 2021 (Community - 5y)

    You have 153 packages (13.3%) that can not/no-longer be downloaded
    You have 277 packages (24.1%) that are unsupported
    1
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  • Avatar
    Julian Bonpland Mignaquy (Edited )

    @Oliver Dirk Riehle Hi! So far there is no ETA for Ubuntu 16 to 18. At the moment we can recommend deploying a new server with Ubuntu 18 and migrating using Plesk Migrator.

    -2
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  • Avatar
    Oliver Mueller (Edited )

    @Julian: An upgrade path using the plesk migrator is not a real option for us and for many others either.

    We have many customers using their own DNS. Coordinating a synchronous switch with them is a huge effort and will result in a lot of trouble. Economically it just doesn't make sense to us. As Plesk customer we expected to get a "smooth" migration path and not a bumpy ride with the Plesk Migrator. And DNS is not the only trouble doing that.

    Is there going to be an upgrade path from 16.04 directly to 20.04? So you have basically discontinued support for a server OS upgrade? Is that correct?

    @ivan said, that more infos on this topic is expected in Q1 2020 (https://support.plesk.com/hc/en-us/articles/360002913773/comments/360000940499)

     

    2
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  • Avatar
    Michael

    +1

    I am also waiting for this upgrade support!

    Buying and setting up a new server is way too much effort.

    2
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  • Avatar
    Ivan Postnikov

    Hello Oliver Mueller and Michael

    Thank you for the feedback.

    > We have many customers using their own DNS. Coordinating a synchronous switch with them is a huge effort and will result in a lot of trouble. Economically it just doesn't make sense to us. As Plesk customer we expected to get a "smooth" migration path and not a bumpy ride with the Plesk Migrator. And DNS is not the only trouble doing that.

    Dist-upgrade is known as a riskier approach, which sometimes leads to server inaccessibility or other issues. Even for a scenario when dist-upgrade is possible, migration is recommended. There's a way to avoid making customers reconfiguring DNS: after migration, the new server's IP may be changed to the same as was on the old one (https://support.plesk.com/hc/en-us/articles/115001761193-How-to-change-the-IP-address-of-Plesk-server-).

     

    > Is there going to be an upgrade path from 16.04 directly to 20.04? 

    There're no such plans.

     

    > more infos on this topic is expected

    RnD was concentrated on CentOS 8 support which took more resources when expected. So, more precise data is t be available later.

    Thank you for understanding.

    -2
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  • Avatar
    Jan Bludau

    +1

    i'm waiting for CentOS 8 Upgrade from CentOS 7 :-)

    0
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    François-Xavier Guénan

    I've successfully upgraded from Ubuntu 14 to 16 using the script, but after the first reboot, I had to boot using network (OVH net-boot) to keep the update running, otherwise it was booting to emergency mode. Now everything runs fine, but only on net-boot. If I boot using harddrive I'm back to emergency mode. I'll edit my post when I'll fix this.

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    Vương Công Minh (Edited )

    I find that Ubuntu 18.04 supports upgrading from 16.04 through do-release-upgrade. You can review how to upgrade to the new version

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    Ivan Postnikov

    Hello Vương Công Minh

    Mind you, this wasn't tested on Plesk side.

    Consider upgrading the test server before production one.

    Also, I would suggest making a server snapshot before the upgrade.

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    putinluver127

    This feature is promised for 22 month and is a long-term feature in Debian based derivates. Making a uservoice out of it is just typical for you useless putin alt-right loving a-holes

    Plesk

    put a toothpick under your big ducking ugly toes and kick a wall you senseless piece of 💩's...

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    Mark-Oliver Wolter (Edited )

    Similar problem as Μίστερ Μολ also trying to upgrade from jessie to stretch.

    /opt/psa/bin/distupgrade.helper.deb8-deb9.x64.sh results in:

    START Distupgrade
    START Distupgrade

    File '/etc/apache2/ports.conf.saved_by_plesk_distupgrade_from_jessie' exists. Skip saving '/etc/apache2/ports.conf'.
    '/etc/apt/sources.list' has been already updated. Skip.
    '/etc/apt/sources.list.d/dotdeb.list' has been already updated. Skip.
    '/etc/apt/sources.list.d/plesk-ext-panel-migrator.list' has been already updated. Skip.
    '/etc/apt/sources.list.d/plesk.list' has been already updated. Skip.
    Now you can perform dist-upgrade to stretch using any method you like.
    You can visit https://www.debian.org/releases/stretch/amd64/release-notes/ch-upgrading.html for more information.
    After system dist-upgrade is finished run '/opt/psa/bin/distupgrade.helper.deb8-deb9_post.x64.sh'.
    [...]
    0 upgraded, 0 newly installed, 0 to remove and 137 not upgraded.
    Hit:1 http://autoinstall.plesk.com/PMM_0.1.11 stretch InRelease
    Hit:2 http://security.debian.org stretch/updates InRelease
    Hit:4 http://autoinstall.plesk.com/debian/PSA_17.8.11 jessie InRelease
    Hit:5 http://autoinstall.plesk.com/debian/PHP70_17 jessie InRelease
    Hit:6 http://autoinstall.plesk.com/PHP71_17 jessie InRelease
    Ign:3 http://cdn-fastly.deb.debian.org/debian stretch InRelease
    Hit:7 http://cdn-fastly.deb.debian.org/debian stretch Release
    Reading package lists...
    Reading package lists...
    Building dependency tree...
    Reading state information...
    E: Unable to locate package psa-php-configurator
    Some error during dist-upgrade middle stage have occurred.
    Check /var/log/plesk/install/plesk-distupgrade.log for error details.
    Visit https://docs.plesk.com/en-US/current/administrator-guide/server-administration/distupgrade-support.74627/ for information about troubleshooting and recovering from failed dist-upgrade.
    STOP Distupgrade

    "Check /var/log/plesk/install/plesk-distupgrade.log for error details" is useless. That IS the content of the file.

    Obviously, at this stage, apt only knows about the psa-php5-configurator, but not psa-php-configurator.

    So this is didn't quite work as intended:

    '/etc/apt/sources.list.d/plesk.list' has been updated: 'jessie' is replaced with 'stretch'. Original file is saved in '/etc/apt/plesk.list.saved_by_plesk_distupgrade_from_jessie'.

    The file /etc/apt/plesk.list.saved_by_plesk_distupgrade_from_jessie contains lines that were not in my /etc/apt/sources.list.d/plesk.list before calling the upgrade script (e.g. deb http://autoinstall.plesk.com/debian/PHP52_17 jessie all) and the plesk.list afterwards is still all jessie:

    ## Persistent repositories for Plesk Products.
    deb http://autoinstall.plesk.com/debian/PSA_17.8.11 jessie extras
    deb http://autoinstall.plesk.com/debian/PHP70_17 jessie all
    deb http://autoinstall.plesk.com/PHP71_17/ jessie all

    Turns out what happened is:

    Before the upgrade, I used Tools&Settings->Plesk->Updates and Upgrades to remove the PHP5.6 packages. Thing is, the autoinstaller also messes with the sources.list.d files and inserts its own 50sw_autoinstaller.list and plesk.list. And as the autoinstaller has no logout function (at least I can't find it), this is a timebomb that triggers 30 minutes after the last action, removing 50sw_autoinstaller.list and replacing the old plesk.list. The upgrade helper script also places a 50sw_autoinstaller.list in there, so when autoinstaller exits, it removes a file that is still needed and changes the contents of the other.

    Would be nice if "Updates and Upgrades" had a "quit autoinstaller" button and if the helper script refused to run while autoinstaller is active.

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    Ivan Postnikov

    Hello @Mark-Oliver Wolter

    Thank you for sharing your user experience. Feel free to create feature suggestions at our Plesk UserVoice: https://plesk.uservoice.com/

    The top-ranked suggestions are likely to be included in future updates.

    Meanwhile, we'll think about how to improve this article.

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    b_p

    Hello @Ivan Postnikov is there still no ETA for the dist-upgrade from Ubuntu 16.04 to 18.04? Given that 20.04 is now already available, that step is clearly overdue.

    Given the most recent announcement of again increasing prices, I guess this is clearly something we can expect from a product where prices are continuously rising.

    Best regards,

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    Anton Maslov

    Hello,

    We do plan to publish a guide for Ubuntu dist-upgrade16>18 and 18>20 on Plesk Obsidian 18.0.31 version approximately till end of October.

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    b_p

    Sounds great Anton Maslov. One more day if you do not want to break your (flexible) promise...

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    Adrian Czternasty (Edited )

    Hi 

    I have also issues with upgrading Debian from v.8 to v.9 and also each day I have received an email with an error regarding PHP 7.3.17 like this below:

    Reason: 2020-11-04 06:26:18 INFO: pum is called with arguments: ['--list', '--repo-info', '--json']
    2020-11-04 06:26:40 ERROR: W:Failed to fetch http://autoinstall.plesk.com/PHP73_17/dists/jessie/all/binary-amd64/Packages 404 Not Found
    , W:Failed to fetch http://autoinstall.plesk.com/PHP73_17/dists/jessie/all/binary-i386/Packages 404 Not Found
    , E:Some index files failed to download. They have been ignored, or old ones used instead.
    2020-11-04 06:26:40 ERROR: Exited with returncode 1.

    And the same error was during the upgrade, after the while, I figured out that the root cause was unused and installed on the VPS the PHP5 by OS Vendor in Plesk Updates and Upgrades. On VPS I use only PHP 7.4 so, why the error shows PHP 7.3.17 and deinstalling PHP 5 fix this, I do not know, but the upgrading from Debian 8 to Debian 9 start doing the job.

    Maybe it will some helps.

    Regards

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    Muhamed Osmani

    Vote here for dist-upgrade Support Debian 9 > Debian 10:

    https://plesk.uservoice.com/forums/184549-feature-suggestions/suggestions/41876701-support-dist-upgrade-debian-9-stretch-debian-1

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