Problems when upgrading to 20.0.1

[KarlWvR]

Log-Level auf "debug" gesetzt

Wartungsmodus eingeschaltet

Reparaturschritt: Repair MySQL collation

Reparaturinformation: All tables already have the correct collation -> nothing to do

Reparaturschritt: Repair SQLite autoincrement

Reparaturschritt: Copy data from accounts table when migrating from ownCloud

Reparaturschritt: Drop account terms table when migrating from ownCloud

Das Datenbankschema wird aktualisiert

Doctrine\DBAL\Exception\DriverException: An exception occurred while executing 'CREATE TABLE oc_migrations (app VARCHAR(255) NOT NULL, version VARCHAR(255) NOT NULL, PRIMARY KEY(app, version)) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_bin ENGINE = InnoDB ROW_FORMAT = compressed': SQLSTATE[42000]: Syntax error or access violation: 1071 Specified key was too long; max key length is 767 bytes

[kesselb]

Thank you for reporting this issue 👍 Please check #15058 for more details.

Usually there are two ways to fix this:

A) Configure your database server to support utf8mb4 (https://docs.nextcloud.com/server/latest/admin_manual/configuration_database/mysql_4byte_support.html).

B) If the database server does not support utf8mb4 disable it by setting 'mysql.utf8mb4' => false in your config.php (emojis in filename, calendar events, etc. are not possible than and you have to accept the warning).