Upgrading

Revision as of 20:11, 5 May 2013 by Simon Coggins (talk | contribs) (Possible issues that may affect you in Moodle 2.5)

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This page explains in detail how to upgrade Moodle. For a summary of the process, see Upgrade overview.

Check the requirements

Check that your server meets all requirements for 2.5 in Settings > Site administration > Server > Environment.

Note: You can only upgrade to Moodle 2.5 from Moodle 2.2 or later. If upgrading from earlier versions, you must upgrade to 2.2 as a first step.

Check for plugin updates

Check in the Moodle Plugins directory whether there is a 2.5 version available for any contributed/custom plugins (including themes) that you have previously installed on your site. If so, download the plugin code and copy it to the appropriate location in your Moodle code (see Installing plugins).

The upgrade of the plugin will then happen as part of the Moodle upgrade process.

If an out-of-date plugin causes your upgrade to fail, you can usually delete the plugin code rather than uninstalling it from within Moodle so that the data associated with it is not deleted.

Note: If you have any contributed blocks installed, please see below for info about block capabilities undefined.

Before you upgrade your site for real

We advise that you test the upgrade first on a COPY of your production site, to make sure it works as you expect.

Backup important data

There are three areas that should be backed up before any upgrade:

  1. Moodle software (For example, everything in server/htdocs/moodle)
  2. Moodle uploaded files (For example, server/moodledata)
  3. Moodle database (For example, your Postgres or MySQL database dump)

See Site backup for more specific information.

Put your site into maintenance mode

Before you begin upgrading your site, you should put it into maintenance mode to stop any non-admin users from logging in.

Install the new Moodle software

Standard install package

  1. Move your old Moodle software program files to another location. Do NOT copy new files over the old files.
  2. Unzip or unpack the upgrade file so that all the new Moodle software program files are in the location the old files used to be in on the server. Moodle will adjust SQL and moodledata if it needs to in the upgrade.
  3. Copy your old config.php file back to the new Moodle directory.
  4. As mentioned above, if you had installed any custom plugins on your site you should add them to the new code. It is important to check that you get the correct version for your new version of Moodle. Be particularly careful that you do not overwrite any code in the new version of Moodle.

Linux

mv moodle moodle.backup
tar xvzf moodle-2.5.tgz

Next, copy across your config.php, any custom plugins, and your .htaccess file if you created one (check that custom plugins are the correct version for your new Moodle first):

cp moodle.backup/config.php moodle
cp -pr moodle.backup/theme/mytheme moodle/theme/mytheme
cp -pr moodle.backup/mod/mymod moodle/mod/mymod

Don't forget to make moodle/config.php (and the rest of the source code) readable by your www server. Ideally the files should not be writeable by your server.

If you use cron, take care that cron.php is executeable and uses the correct php command:

chmod 740 admin/cli/cron.php (some configurations need chmod 750 or chmod 755)
copy the first line from cron.php (if it looks like '#!/usr/local/bin/php' or '#!/usr/local/bin/php5.3', no need to copy '<?php')

if necessary.

Using Git

You can use Git for updating or upgrading your Moodle. See Git for Administrators for details.

Command line upgrade

On Linux servers, Moodle 2.5 supports running the upgrade from the command line, rather than through a web browser. This is likely to be more reliable, particularly for large sites.

Finishing the upgrade

The last step is to trigger the upgrade processes within Moodle.

To do this just go to Settings > Site administration > Notifications.

Moodle will automatically detect the new version and perform all the SQL database or file system upgrades that are necessary. If there is anything it can't do itself (very rare) then you will see messages telling you what you need to do.

Assuming all goes well (no error messages) then you can start using your new version of Moodle and enjoy the new features!

Note: If you are running multiple servers then you should purge all caches manually (via Settings > Site administration > Development > Purge all caches) after completing the upgrade on all servers.

After upgrading

The config.php file from your 2.2, 2.3 or 2.4 installation should work fine but if you take a look at config-dist.php that came with Moodle 2.5 there are more/different options available (e.g. database drivers and settings). It's a good idea to map your old config.php settings to a new one based on the 2.5 config-dist.php.

Possible issues that may affect you in Moodle 2.5

Multi-server architectures with different PHP versions

Moodle has moved to use a more secure mechanism for securing passwords, from 2.5 new passwords will be generated using bcrypt rather than md5. Because bcrypt is only supported for PHP version 5.3.7 and above, it is important that all servers within a cluster use the same version of PHP (MDL-35332).

Restoring Moodle 2.5 backups to sites with old PHP versions

Because bcrypt is not supported in PHP versions below 5.3.7, course backups made using the $CFG->includeuserpasswordsinbackup setting on a site using PHP version 5.3.7+ that are subsequently restored to a site with PHP version < 5.3.7 will require a password reset.

The same issue would occur if you downgraded the PHP version on the server running your site from 5.3.7+ to less than 5.3.7 (MDL-35332).

Course listing improvements

Course listings are now displayed consistently throughout the site. See dev:Courses lists upgrade to 2.5 for details of admin setting changes and possible custom theme changes required.


Please add further items...

Moodle 2.3 and 2.4 improvements

If you are upgrading to Moodle 2.5 from 2.2 or 2.3, please see the section 'Possible issues that may affect you' in the documentation Upgrading to Moodle 2.3 and Upgrading to Moodle 2.4.

See also