I think, i have the same problem (even after 5 Trials, to install a fresh Lucid Lynx (Kubuntu) without the old /home-Folder). My last error-log ($HOME/.local/share/akonadi/db_data/mysql.err) is this: 100728 8:12:58 [Note] Plugin 'FEDERATED' is disabled. 100728 8:12:59 InnoDB: Started; log sequence number 0 130014 100728 8:13:00 [Warning] Can't open and lock time zone table: Table 'mysql.time_zone_leap_second' doesn't exist trying to live without them 100728 8:13:00 [ERROR] Can't open and lock privilege tables: Table 'mysql.servers' doesn't exist 100728 8:13:00 [Note] /usr/sbin/mysqld-akonadi: ready for connections. Version: '5.1.41-3ubuntu11-log' socket: '/home/muelux/.local/share/akonadi/db_misc/mysql.socket' port: 0 (Ubuntu) ** First, akonadi came with: Test 14: ERROR -------- No resource agents found. Details: No resource agents have been found, Akonadi is not usable without at least one. This usually means that no resource agents are installed or that there is a setup problem. The following paths have been searched: '/usr/share/akonadi/agents /usr/share/akonadi/agents'. The XDG_DATA_DIRS environment variable is set to '/usr/share:/usr/share:/usr/local/share', make sure this includes all paths where Akonadi agents are installed to. Test 16: ERROR -------- Previous Akonadi server error log found. Details: The Akonadi server did report error during its previous startup into /home/muelux/.local/share/akonadi/akonadiserver.error.old. File content of '/home/muelux/.local/share/akonadi/akonadiserver.error.old': Control process died, committing suicide! *** I tried: sudo apt-get install virtuoso-server mysql-server-5.1 rm -r $HOME/.local/share/akonadi akonadictl start mysql_install_db --datadir=$HOME/.local/share/akonadi/db_data/ mysql_upgrade --socket=$HOME/.local/share/akonadi/db_misc/mysql.socket akonadictl stop akonadictl start *** after that it came with: "akonadiserver" [out] "Running 'mysqlcheck' with connection arguments: '--port=3306' '--socket=/var/run/mysqld/mysqld.sock' '--socket=/home/muelux/.local/share/akonadi/db_misc/mysql.socket' " [akonadiserver] /usr/bin/mysqlcheck: Got error: 2002: Can't connect to local MySQL server through socket '/home/muelux/.local/share/akonadi/db_misc/mysql.socket' (2) when trying to connect [akonadiserver] FATAL ERROR: Upgrade failed [akonadiserver] Failed to use database "akonadi" [akonadiserver] Query error: "Unknown database 'akonadi' QMYSQL: Unable to execute query" [akonadiserver] Database error: "Can't connect to local MySQL server through socket '/home/muelux/.local/share/akonadi/db_misc/mysql.socket' (2) QMYSQL: Unable to connect" [akonadiserver] Trying to create database now... [akonadiserver] Database "akonadi" opened using driver "QMYSQL" ...] ### it creates a new database with log-messages (extract): [akonadiserver] DbInitializer::run() done [akonadiserver] skipping update 2 [akonadiserver] skipping update 3 [akonadiserver] skipping update 4 [akonadiserver] skipping update 8 [akonadiserver] skipping update 10 [akonadiserver] skipping update 12 [akonadiserver] skipping update 13 [akonadiserver] skipping update 14 [akonadiserver] Database "akonadi" opened using driver "QMYSQL" [akonadiserver] Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString) [akonadiserver] DataStore::unhideAllPimItems() [akonadiserver] Database "akonadi" opened using driver "QMYSQL" PLUGINS: "/usr/share/akonadi/agents" PLUGINS: ("birthdaysresource.desktop", "contactsresource.desktop", "icalresource.desktop", "imapresource.desktop", "kabcresource.desktop", "kcalresource.desktop", "knutresource.desktop", "kolabproxyresource.desktop", "localbookmarksresource.desktop", "maildirresource.desktop", "maildispatcheragent.desktop", "mboxresource.desktop", "microblog.desktop", "mtdummyresource.desktop", "nepomukcalendarfeeder.desktop", "nepomukcontactfeeder.desktop", "nepomuktagresource.desktop", "nntpresource.desktop", "notesresource.desktop", "pop3resource.desktop", "vcarddirresource.desktop", "vcardresource.desktop") search paths: ("/usr/local/sbin", "/usr/local/bin", "/usr/sbin", "/usr/bin", "/sbin", "/bin", "/usr/games") PLUGINS inserting: "akonadi_birthdays_resource" 0 ("Resource") PLUGINS inserting: "akonadi_contacts_resource" 1 ("Resource") ### the last messages belongs to kmail, i guess: [akonadiserver] Database "akonadi" opened using driver "QMYSQL" [/usr/bin/akonadi_maildispatcher_agent] akonadi_maildispatcher_agent(1849)/libakonadi Akonadi::DefaultResourceJob::slotResult: "Unknown resource" [/usr/bin/akonadi_maildispatcher_agent] akonadi_maildispatcher_agent(1849)/libakonadi Akonadi::ResourceScanJob::Private::fetchResult: "Unknown resource" [/usr/bin/akonadi_maildispatcher_agent] akonadi_maildispatcher_agent(1849)/libakonadi Akonadi::SpecialCollectionsRequestJobPrivate::resourceScanResult: Failed to request resource "akonadi_maildir_resource_0" : "Unbekannter Fehler. (Unknown resource)" [/usr/bin/akonadi_maildispatcher_agent] akonadi_maildispatcher_agent(1849) OutboxQueue::Private::localFoldersRequestResult: Failed to get outbox folder. [/usr/bin/akonadi_nepomuk_contact_feeder] Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString) [akonadiserver] Database "akonadi" opened using driver "QMYSQL" So, after two month of trial and error upgrading to Kubuntu 10.04 i think i have to give up ;-(