I have refactored an old Drupal 6 site to Drupal 8 and my only problem is, i migrated the users but the password is incorrect. i know that the password in Drupal 6 is a MD5 hash, but i cannot find a solution to convert this password, that Drupal 8 can read it.
Is there any solution for the password migration yet? can i give the MD5 hash a prefix inside of the database to make it readable?
User and user password migration is part of the Migrate and Migrate Drupal modules that come with Drupal 8 and that can easily be accessed using the Migration Drupal UI.
One word of warning though, from the guide on Upgrading using the migration user interface:
Due to password encryption, user accounts take particularly long to import.
Security wise it would make sense to import them in Drupal and then use the Mass Password Reset module to reset all passwords.
See Migrating MD5 hashed passwords
There is also a D6 migration example in /core/modules/user/migration_templates/d6_user.yml:
id: d6_user
label: User accounts
migration_tags:
- Drupal 6
source:
plugin: d6_user
process:
...
pass: pass
...
...
destination:
plugin: entity:user
md5_passwords: true
...
Key solution here to correctly migrate the passwords is to use the md5_passwords: true option for the destination user entity. So make sure you include that option in your user migration config.
