jUpgrade is a component that has to be installed in your Joomla 1.5 site. During the migration phase, it will create a subdirectory within Joomla, for example domain.com/jupgrade and will actually install Joomla 2.5 within this directory while at the same time migrate Joomla 1.5 database into the new Joomla 2.5 structure. The same database will be used but using a different prefix for Joomla 2.5 (j17_# prefix) which is of course configurable at the backend. This method is pretty ingenious as it would mean that none of your live site files and database information is altered, completely out of harm’s way.
Step 1: Backup, Backup, Backup
Skipping this part is perhaps the biggest mistake you can make. If you have a proper backup (or several) you can always revert back if needed. However, if you don't properly backup your site and something goes wrong, you are going to waste a lot of valuable time, and sometimes a lot money, getting things back to the way they were. So please backup!
If everything looks good to go, then let's backup the new Joomla 2.5 installation. Read this tutorial to learn how to make backups.
Step 2: Download jUpgrade official website (registration is required)
Step 3: Install jUpgrade in the Joomla 1.5 website via Joomla Install/Uninstall area.
Step 4: Go to Extensions > Plugin Manager, locate a plugin called ‘System – Mootools Uprade' and enable it. This plugin is required for jUpgrade to function. If you do not have this plugin, it means that you are using a very old version of Joomla 1.5. Upgrade to the latest Joomla 1.5.25 before proceeding.
Step 5: Once enabled, go to Components > jUpgrade.
Step 6: Go to Parameters and ensure the prefix for the old database is correct, and then submit your preferred prefix for the new Joomla 2.5 tables. Make sure you have set ‘Yes’ to ‘Skip template copy’ and ‘Skip 3rd Party Extensions’.
Step 7: Save the configuration and Start Upgrade, Depending on your internet connection, system and localhost setting, it may take a few minutes to complete the task.
Step 8: The screen will move from ‘Checking’ > ‘Downloading Joomla 2.5’ > ‘Decompressing package’ > ‘Installing Joomla 2.5’ > ‘Upgrading Progress’ > ‘Copying Templates’ – if it is enabled > ‘Copying images/media files’ > ‘Upgrading 3rd extensions’ – if its enabled > Finish.
Step 9: If it stuck at any of the phases above, give it a good 10-15 minutes and Success!
Do not exit the screen until everything has finished loading. Scroll down to check if it has finished. (Since we're writing in advance of the 2.5 release, the screen shot reflects the 1.7 results.)
Here is a general checklist of items to test:
- Banners
- Categories
- Contacts
- Content
- Menus
- Modules
- Newsfeeds
- Users
- Weblinks
- Templates - Work is currently being done on the template upgrade feature of jUpdate and it is not yet fully functional. Your module positions may have to be adjusted in module manager.
upgrading a Joomla 1.5 template to Joomla 1.6/1.7/2.5, However should you rely on those awesome templates by Rockettheme, Joomlart, Gavick and others, it is best for you to contact them for an update.
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