reset ownCloud 6 admin password

If you, just like me, forgot the admin password of your rather fresh ownCloud 6 installation, you can reset it using the following steps:

1. Log into the server hosting your owncloud installation
2. Navigate to the sites directory (ie: /var/www/owncloud)
3. Fetch the salt from ./config/config.php
4. Navigate to the ‘phppass’ 3rd party app (ie: /3rdparty/phpass)
5. edit the test.php file and replace the following:
6. edit $correct = ’test12345′; to $correct = ‘yournewpass’.’yourconfigpasswordsalt’;
7. Run ‘php test.php’
8. Revert changes to test.php
9. Copy the first line that has ‘Hash: $2a…’
10. Log into your database (MySQL is the example)
11. mysql -u root -p
12. use owncloud;
13. select * from oc_users;
14. Note the password value, copy it just in case
15. update oc_users set password= ‘generatedhash’ where uid = ‘admin’;

That’s it, you can now login using the new password.

Reference:

https://forum.owncloud.org/viewtopic.php?f=23&t=10580