https://bugs.kde.org/show_bug.cgi?id=440590
--- Comment #11 from Karsten de Freese <karsten.defre...@posteo.de> --- No success yet - I could restore the original behaviour, and run the manual upgrade, but digikam fails to start with the upgraded database. This is what I did (all using the installed copy of digikam 7.3.0): - I restored -- $HOME/.local/share/digikam/ -- $HOME/.config/digikam* -- the database directory (/var/lib/digikam_db in my case) to the state before the update. - I started digikam 7.3.0 (local installation) The original error messages popped up - so far as expected. ("Failed to update the database schema from version 12 to version 13...") - while the error messages were still shown, a manual database upgrade ran successfully ("mariadb-upgrade --socket=/home/karsten/.local/share/digikam/db_misc/mysql.socket") - I clicked ok the digikam error messages and digikam terminated after a while => so far so good - BUT: Starting digikam again did result in the error seen yesterday: "An error occurred during the internal server start. Details: Database process exited unexpectedly during initial connection. <p>Executable: /usr/sbin/mysqld</p> <p>Arguments: --defaults-file=/home/karsten/.local/share/digikam/mysql.conf, --datadir=/var/lib/digikam_db/MySQL/.mysql.digikam/db_data, --socket=/home/karsten/.local/share/digikam/db_misc/mysql.socket</p> <p>Process error: Process crashed</p>" (formatting by myself) The debug output in the terminal at this point: digikam.widgets: Use installed icons digikam.general: Switch to widget style: "" digikam.general: Switch to application font: QFont(Noto Sans,10,-1,5,50,0,0,0,0,0) digikam.general: AlbumWatch is disabled digikam.general: Database Parameters: Type: "QMYSQL" DB Core Name: "digikam" DB Thumbs Name: "digikam" DB Face Name: "digikam" DB Similarity Name: "digikam" Connect Options: "UNIX_SOCKET=/home/karsten/.local/share/digikam/db_misc/mysql.socket" Host Name: "" Host port: -1 Internal Server: true Internal Server Path: "/var/lib/digikam_db/MySQL" Internal Server Admin Cmd: "mysqladmin" Internal Server Serv Cmd: "/usr/sbin/mysqld" Internal Server Init Cmd: "mysql_install_db" Username: "root" Password: "" digikam.databaseserver: Database Parameters: Type: "QMYSQL" DB Core Name: "digikam" DB Thumbs Name: "digikam" DB Face Name: "digikam" DB Similarity Name: "digikam" Connect Options: "UNIX_SOCKET=/home/karsten/.local/share/digikam/db_misc/mysql.socket" Host Name: "" Host port: -1 Internal Server: true Internal Server Path: "/var/lib/digikam_db/MySQL" Internal Server Admin Cmd: "mysqladmin" Internal Server Serv Cmd: "/usr/sbin/mysqld" Internal Server Init Cmd: "mysql_install_db" Username: "root" Password: "" digikam.databaseserver: Internal Server data path: "/var/lib/digikam_db/MySQL/.mysql.digikam/db_data" digikam.databaseserver: The mysql configuration was already up-to-date: "/home/karsten/.local/share/digikam/mysql.conf" digikam.databaseserver: Database server: "/usr/sbin/mysqld" ("--defaults-file=/home/karsten/.local/share/digikam/mysql.conf", "--datadir=/var/lib/digikam_db/MySQL/.mysql.digikam/db_data", "--socket=/home/karsten/.local/share/digikam/db_misc/mysql.socket") digikam.databaseserver: "Database process exited unexpectedly during initial connection." digikam.databaseserver: Executable: "/usr/sbin/mysqld" digikam.databaseserver: Arguments: "--defaults-file=/home/karsten/.local/share/digikam/mysql.conf, --datadir=/var/lib/digikam_db/MySQL/.mysql.digikam/db_data, --socket=/home/karsten/.local/share/digikam/db_misc/mysql.socket" digikam.databaseserver: Stdout: "" digikam.databaseserver: Stderr: "2021-08-05 12:13:56 0 [Note] /usr/sbin/mysqld (mysqld 10.5.10-MariaDB-log) starting as process 29222 ...\n" digikam.databaseserver: Exit code: 6 digikam.databaseserver: Process error: "Process crashed" digikam.databaseserver: Cannot start internal database server -- You are receiving this mail because: You are watching all bug changes.