I have Drupal 8.8.* and I would like to migrate to Drupal 9 using Drush 8. I know, we can use composer however I just wanted to confirm, whether we can do by using Drush command?

I tried using Drush but it's showing no updates available.

$ drush pm-update drupal-9.0.0
Update information last refreshed: Thu, 06/11/2020 - 11:42
 Name    Installed Version  Proposed version  Message                     
 Drupal  8.9.0              8.9.0             Specified version not found 

No code updates available.

No, you can't. drush pm-update has been deprecated for a while. The command is still available in the Drush 8.x branch but in later revisions it only exists as a signpost to inform the user how to move to Composer:

The pm-updatecode command was removed. Please see composer update --dry-run and composer update.

Noting that Drush 8 isn't supporting revisions past 8.3.x or 9.x, you should look into upgrading Drush and moving to a Composer-driven upgrade process.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.