When you write 

$databases['default']['default'] = array (
  'database' => 'drupal',
  'username' => 'root',
  'password' => '',
  'prefix' => '',
  'host' => '172.17.8.101',
  'port' => '49036',
  'namespace' => 'Drupal\\Core\\Database\\Driver\\mysql',
  'driver' => 'mysql',
);

and go to install drupal. You get a white screen. Related Apache log:
PHP Fatal error: Class name must be a valid object or a string in /var/www/html/core/modules/field/src/FieldStorageConfigStorage.php on line 160

Comments

webankit created an issue. See original summary.

cilefen’s picture

cilefen CreditAttribution: cilefen commented

I think this is "works as designed".

You must let the installer write the database configuration to settings.php. If you put it there in advance, Drupal is considered to be already installed.

cilefen’s picture

cilefen CreditAttribution: cilefen commented
Component: other » install system
stefan.r’s picture

stefan.r CreditAttribution: stefan.r commented

If you put the database settings in there yourself it should still install as long as the database is empty, it would just skip the DB settings step in the installer right?

webankit’s picture

webankit CreditAttribution: webankit as a volunteer commented

@stefan.r this use to happen in D-7, its not happening in latest dev D-8. I am also trying to skip Database settings. Probably in D8 there is Config-Directory also handled in the same step. But if you write Config-Directory in settings.php, it says site already exist, even with blank Database.

Version: 8.0.x-dev » 8.1.x-dev

Drupal 8.0.6 was released on April 6 and is the final bugfix release for the Drupal 8.0.x series. Drupal 8.0.x will not receive any further development aside from security fixes. Drupal 8.1.0-rc1 is now available and sites should prepare to update to 8.1.0.

Bug reports should be targeted against the 8.1.x-dev branch from now on, and new development or disruptive changes should be targeted against the 8.2.x-dev branch. For more information see the Drupal 8 minor version schedule and the Allowed changes during the Drupal 8 release cycle.

Version: 8.1.x-dev » 8.2.x-dev

Drupal 8.1.9 was released on September 7 and is the final bugfix release for the Drupal 8.1.x series. Drupal 8.1.x will not receive any further development aside from security fixes. Drupal 8.2.0-rc1 is now available and sites should prepare to upgrade to 8.2.0.

Bug reports should be targeted against the 8.2.x-dev branch from now on, and new development or disruptive changes should be targeted against the 8.3.x-dev branch. For more information see the Drupal 8 minor version schedule and the Allowed changes during the Drupal 8 release cycle.

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Version: 8.3.x-dev » 8.4.x-dev

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Version: 8.5.x-dev » 8.6.x-dev

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quietone’s picture

quietone CreditAttribution: quietone as a volunteer commented
Status: Active » Closed (duplicate)
Issue tags: +Bug Smash Initiative
Related issues: +#2727535: Pre-existing database settings in settings.php prevents installation, +#2581457: Pre-configured settings.php with uninstalled Drupal causes the installer to refuse to move forward, +#728702: Visiting index.php should redirect to install.php if settings.php already has database credentials but database is empty., +#2787329: Fresh install with predefined database array

Ah, just closed another issue like this one.

This look like a duplicate of #2581457: Pre-configured settings.php with uninstalled Drupal causes the installer to refuse to move forward and according to this comment int that issue this was fixed in 8.3.x in #728702: Visiting index.php should redirect to install.php if settings.php already has database credentials but database is empty..

Please reopen if you think this is an error.