Drupal 8 provides support for D7 to D8 migrations. Since there is no direct upgrade path for Drupal 7 to Drupal 8, you should become familiar with the migration system in Drupal. You can migrate content & configuration from Drupal 7 to Drupal 8.
In this article we will share two (2) different ways to migrate from Drupal 7 site to Drupal 8
1) Migration through Drupal Configuration
2) Migration Using Drush Command & Composer
Let’s start….
1) Migration through Drupal Configuration
Steps to Migrate Drupal 7 To Drupal 8 Using Site Configuration of Drupal
Once your installation setup is completed into localhost. This Drupal 8 site will be used as the destination site for the migration process. Tip: Please build the website in the local environment Migrate: - Migrate module provides a flexible framework for Drupal 7 to Drupal 8 content migration Migrate Drupal: - Migrate Drupal module provides the capabilities for importing content from Drupal 7 to Drupal 8 Migrate Drupal UI:- This module provides below mention characteristics 1) Show list of migrations that can be filtered by migration tags Please refer below screenshot for more details www.example.com/upgrade Once the Migrate module is enabled, you need to navigate to the upgrade path. Further steps will be available on the upgrade path to proceed. So, read and follow the migration steps carefully. Then press to the continue button and open to the migration screen. Please refer the image below Before performing the migration, you must check that you have full access of your Drupal 7 database and private files which you want to migrate to Drupal 8 website. You must enable the permission in your drupal7 private files that can be accessible in drupal8 sites. For example, if the old site uses the mark-up module, then enable the mark-up module on the new site so the existing data can be imported easily. Please make sure that you don't add any new content before migrating the database. You can always add the content after the successful migration to the new version Go to. Once you click perform upgrade button it will start migrating from Drupal 7 to Drupal 8. The migration process will take some time, depending on the size of the website. In case of errors, just reload the web page. Finish…. This process is very simple and can be done easily with some technical knowledge by using Drupal modules & configurations. Second Approach…. Before performing the migration, you must check that you have full access of your Drupal 7 database and private files which you want to migrate to Drupal 8 website. You must enable the permission in your drupal7 private files that can be accessible in drupal8 sites. For example, if the old site uses the mark-up module, then enable the mark-up module on the new site so the existing data can be imported easily. Please make sure that you don't add any new content before migrating the database. You can always add the content after the successful migration to the new version Go to. Once you click perform upgrade button it will start migrating from Drupal 7 to Drupal 8. The migration process will take some time, depending on the size of the website. In case of errors, just reload the web page. Finish…. This process is very simple and can be done easily with some technical knowledge by using Drupal modules & configurations. Second Approach…. Step 2 - Download & install the latest version of Drupal 8
Step 3 - Enable the below Modules in Drupal 8 site
2) Create new migrations from scratch
3) Edit and delete existing migrations.
4) Configure advanced process pipelines, E.g. configure the process plugins for each field.
5) Build migration templates into migration config entities.
Step 4 - Navigate to the Upgrade path
Step 5 - Make sure that access to the database of Drupal 7 is available from Drupal 8 site
Step 6 - If the old site has private files, copy its file’s directory and that must also be accessible on the host of Drupal 8 site
Step 7 - Enable all modules on Drupal 8 site that are enabled on Drupal 7 site.
Step 8 - Do not add new content to the new site before migration. Any existing content will be overwritten in the migration process.
Step 9 - Put Drupal 8 site into maintenance mode
-admin/config/development/maintenance
-Save Configuration.
Step 10 - Continue the upgrade process
Step 11 - Start the Migration
Once it is completed successfully you will be able to see below screen.
Step 5 - Make sure that access to the database of Drupal 7 is available from Drupal 8 site
Step 6 - If the old site has private files, copy its file’s directory and that must also be accessible on the host of Drupal 8 site
Step 7 - Enable all modules on Drupal 8 site that are enabled on Drupal 7 site.
Step 8 - Do not add new content to the new site before migration. Any existing content will be overwritten in the migration process.
Step 9 - Put Drupal 8 site into maintenance mode
-admin/config/development/maintenance
-Save Configuration. Step 10 - Continue the upgrade process
Step 11 - Start the Migration
Once it is completed successfully you will be able to see below screen.
2) Migration Using Drush Command & Composer
Required Modules for Migration using Drush Command
1) Migrate Upgrade:-
Provides Drush support for upgrading from Drupal 7 to Drupal 8.
2) Migrate Plus:-
Provides extensions to core migration framework functionality.
3)Migrate Tools:-
Provides Drush commands which can be used in the migration process.
If you have already installed the composer, make sure it's updated. If it’s not updated, then you can update the composer using below command. Command : If your Composer doesn't have Drush listed as a dependency, you can install Drush from the command line as follows Command: Make sure your Drush version is up to date You can check your drush version with the following command. Command:- “drush –version” Now start your migration with following drush command Command "drush ://user:password@server/db -- ://example.com --configure-only" Replace below mention value with your values in the above command -'user' is the username of the source database -'password' is the source database user's password -'server' is the source database server -'db' is the source database After migration, check migration status with the following command To check the migration list, please use the following command Go to the structure->migration Check the migration group ‘import from drupal 7’ list migration and useful data will import it. Once you click on the execute button, you will be redirected to the page with below mention options. Import: - Imports all previously unprocessed records from the source, plus any records marked for the update, into destination Drupal objects. Rollback: - Deletes all Drupal objects created by the import Stop: - Please stop any import or rollback processes that may currently be running. Reset: - Sometimes a process may fail to stop, and be left stuck in an Importing or Rolling Back status. You can select the options and execute the process as per your requirement and your migration will be completed. Done!!! Please compare manually a few of your Drupal 7 contents with Drupal 8 to verify. If you follow the above mention steps carefully, you can easily migrate your site. If you are looking for Drupal Guide please refer to the link Getting Started With Drupal. We hope the information gives you a complete idea of how to Migrate your Drupal 7 site in Drupal 8. If you get any issue while migrating, you can contact us anytime. If you get any issue while migrating, you can contact us anytime. Our expert Drupal developers can help you to migrate your website quickly. cmsMinds is headquartered in RTP and worked on many Drupal Development & Drupal migration projects. If you need help migrating or upgrading your website, then drop an email on info@cmsminds.com to schedule a free initial consultation with one of our Drupal experts. Step 2 - Update Composer (Optional)
Step 2 - Update Composer (Optional)
“composer update”
Step 3 - Install Drush using Composer
“composer require drush/drush” Step 4 - Check the Version of Drush
Step 5 - Start Migration Through Drush
Step 6- Check Your Migrate Status
Command:-
“drush migrate-status”
Step 7 - Import the Migrate Data
Command
“drush migrate-import –all”
Step 8:- After successful migration, following path can be used to check status of migration.
After clicking on list migration button all upgraded data will be visible. Click to the execute button and data will be imported.
Conclusion:-
Thank you for sharing this great article. Quite helpful. What was not clear to me going through your article is the contributed/custom modules. What happens to them. Do you manually install all these modules on the Drupal 8 site before attempting the migration or you do the migration and them manually install any missing modules?
Please refer the Step 7 – Enable all modules on Drupal 8 site that are enabled on the Drupal 7 site.
As per the point, we need to install the contrib modules on the new site which are used or installed in the old site before starting the migration. For custom module, we need to rebuild for Drupal 8 using Drupal fundamental structure or you can use below contrib module for migrating it: https://www.drupal.org/project/drupalmoduleupgrader
Hope this information will help you !!
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