Version:           unknown (using 4.4.2 (KDE 4.4.2), Kubuntu packages)
Compiler:          cc
OS:                Linux (x86_64) release 2.6.32-19-generic

[I alrady send a bug report to launchpad witch contains those information and the reaction from launchpad. Please see: https://bugs.launchpad.net/bugs/557919 also. Thanks for your help!]

Binary package hint: kdebase

After Upgrade to Lucid I had servail problems with nepomuk desktop search. First there was a message, with information about driver conversion to new format: virtuoso --> redland . That conversion was never finshed. After that I searched for problem solutions and find that:
http://userbase.kde.org/Akonadi_4.4/Troubleshooting#Troubleshooting_Tips
I could fix some errors I had, but there are errors left, you can see in the akonadi bug report:

--------------------------------------------------------------------------------------------------------------------

Akonadi Server Self-Test Report
===============================

Test 1: SUCCESS
--------

Database driver found.
Details: The QtSQL driver 'QMYSQL' is required by your current Akonadi server configuration and was found on your system.

File content of '/home/xwarman/.config/akonadi/akonadiserverrc':
[%General]
Driver=QMYSQL
SizeThreshold=4096
ExternalPayload=false

[QMYSQL]
Name=akonadi
User=
Password=
Options="UNIX_SOCKET=/home/xwarman/.local/share/akonadi/db_misc/mysql.socket"
ServerPath=/usr/sbin/mysqld-akonadi
StartServer=true
Host=

[Debug]
Tracer=null

[QPSQL]
Name=akonadi
Host=
User=
Password=
Port=5432

Test 2: SUCCESS
--------

MySQL server found.
Details: You currently have configured Akonadi to use the MySQL server '/usr/sbin/mysqld-akonadi'.
Make sure you have the MySQL server installed, set the correct path and ensure you have the necessary read and execution rights on the server executable. The server executable is typically called 'mysqld', its locations varies depending on the distribution.

Test 3: SUCCESS
--------

MySQL server is executable.
Details: MySQL server found: /usr/sbin/mysqld-akonadi Ver 5.1.41-3ubuntu9 for debian-linux-gnu on x86_64 ((Ubuntu))

Test 4: ERROR
--------

MySQL server log contains errors.
Details: The MySQL server error log file &apos;<a href='/home/xwarman/.local/share/akonadi/db_data/mysql.err'>/home/xwarman/.local/share/akonadi/db_data/mysql.err</a>&apos; contains errors.

File content of '/home/xwarman/.local/share/akonadi/db_data/mysql.err':
100408 9:24:12 [Note] Plugin 'FEDERATED' is disabled.
100408 9:24:15 InnoDB: Started; log sequence number 0 8369104
100408 9:24:17 [Warning] Can't open and lock time zone table: Table 'mysql.time_zone_leap_second' doesn't exist trying to live without them
100408 9:24:17 [ERROR] Can't open and lock privilege tables: Table 'mysql.servers' doesn't exist
100408 9:24:17 [Note] /usr/sbin/mysqld-akonadi: ready for connections.
Version: '5.1.41-3ubuntu9-log' socket: '/home/xwarman/.local/share/akonadi/db_misc/mysql.socket' port: 0 (Ubuntu)

Test 5: SUCCESS
--------

MySQL server default configuration found.
Details: The default configuration for the MySQL server was found and is readable at <a href='/etc/akonadi/mysql-global.conf'>/etc/akonadi/mysql-global.conf</a>.

File content of '/etc/akonadi/mysql-global.conf':
#
# Global Akonadi MySQL server settings,
# These settings can be adjusted using $HOME/.config/akonadi/mysql-local.conf
#
# Based on advice by Kris Köhntopp <kris@mysql.com>
#
[mysqld]
skip_grant_tables
skip_networking

# strict query parsing/interpretation
# TODO: make Akonadi work with those settings enabled
#sql_mode=strict_trans_tables,strict_all_tables,strict_error_for_division_by_zero,no_auto_create_user,no_auto_value_on_zero,no_engine_substitution,no_zero_date,no_zero_in_date,only_full_group_by,pipes_as_concat
#sql_mode=strict_trans_tables

# use InnoDB for transactions and better crash recovery
default_storage_engine=innodb
# case-insensitive table names, avoids trouble on windows
lower_case_table_names=1
character_set_server=latin1
collation_server=latin1_general_ci
table_cache=200
thread_cache_size=3
log_bin=mysql-bin
expire_logs_days=3
#sync_bin_log=0
# error log file name, relative to datadir
log_error=mysql.err
log_warnings=2
# log all queries, useful for debugging but generates an enormous amount of data
#log=mysql.full
# log queries slower than n seconds, log file name relative to datadir (for debugging only)
#log_slow_queries=mysql.slow
#long_query_time=1
# log queries not using indices, debug only, disable for production use
#log_queries_not_using_indexes=1
# maximum blob size
max_allowed_packet=32M
max_connections=256
# makes sense when having the same query multiple times
# makes no sense with prepared statements and/or transactions
query_cache_type=0
query_cache_size=0

innodb_file_per_table=1
innodb_log_buffer_size=1M
innodb_additional_mem_pool_size=1M
# messure database size and adjust
# SELECT sum(data_length) as bla, sum(index_length) as blub FROM information_schema.tables WHERE table_schema not in ("mysql", "information_schema");
innodb_buffer_pool_size=80M
# size of average write burst, keep Innob_log_waits small, keep Innodb_buffer_pool_wait_free small (see show global status like "inno%", show global variables)
innodb_log_file_size=64M
innodb_flush_log_at_trx_commit=2

Test 6: SKIP
--------

MySQL server custom configuration not available.
Details: The custom configuration for the MySQL server was not found but is optional.

Test 7: SUCCESS
--------

MySQL server configuration is usable.
Details: The MySQL server configuration was found at <a href='/home/xwarman/.local/share/akonadi/mysql.conf'>/home/xwarman/.local/share/akonadi/mysql.conf</a> and is readable.

File content of '/home/xwarman/.local/share/akonadi/mysql.conf':
#
# Global Akonadi MySQL server settings,
# These settings can be adjusted using $HOME/.config/akonadi/mysql-local.conf
#
# Based on advice by Kris Köhntopp <kris@mysql.com>
#
[mysqld]
skip_grant_tables
skip_networking

# strict query parsing/interpretation
# TODO: make Akonadi work with those settings enabled
#sql_mode=strict_trans_tables,strict_all_tables,strict_error_for_division_by_zero,no_auto_create_user,no_auto_value_on_zero,no_engine_substitution,no_zero_date,no_zero_in_date,only_full_group_by,pipes_as_concat
#sql_mode=strict_trans_tables

# use InnoDB for transactions and better crash recovery
default_storage_engine=innodb
# case-insensitive table names, avoids trouble on windows
lower_case_table_names=1
character_set_server=latin1
collation_server=latin1_general_ci
table_cache=200
thread_cache_size=3
log_bin=mysql-bin
expire_logs_days=3
#sync_bin_log=0
# error log file name, relative to datadir
log_error=mysql.err
log_warnings=2
# log all queries, useful for debugging but generates an enormous amount of data
#log=mysql.full
# log queries slower than n seconds, log file name relative to datadir (for debugging only)
#log_slow_queries=mysql.slow
#long_query_time=1
# log queries not using indices, debug only, disable for production use
#log_queries_not_using_indexes=1
# maximum blob size
max_allowed_packet=32M
max_connections=256
# makes sense when having the same query multiple times
# makes no sense with prepared statements and/or transactions
query_cache_type=0
query_cache_size=0

innodb_file_per_table=1
innodb_log_buffer_size=1M
innodb_additional_mem_pool_size=1M
# messure database size and adjust
# SELECT sum(data_length) as bla, sum(index_length) as blub FROM information_schema.tables WHERE table_schema not in ("mysql", "information_schema");
innodb_buffer_pool_size=80M
# size of average write burst, keep Innob_log_waits small, keep Innodb_buffer_pool_wait_free small (see show global status like "inno%", show global variables)
innodb_log_file_size=64M
innodb_flush_log_at_trx_commit=2

Test 8: SUCCESS
--------

akonadictl found and usable
Details: The program '/usr/bin/akonadictl' to control the Akonadi server was found and could be executed successfully.
Result:
Akonadi 1.3.1

Test 9: SUCCESS
--------

Akonadi control process registered at D-Bus.
Details: The Akonadi control process is registered at D-Bus which typically indicates it is operational.

Test 10: SUCCESS
--------

Akonadi server process registered at D-Bus.
Details: The Akonadi server process is registered at D-Bus which typically indicates it is operational.

Test 11: ERROR
--------

Nepomuk search service not registered at D-Bus.
Details: The Nepomuk search service is not registered at D-Bus which typically means it was not started or encountered a fatal error during startup.

Test 12: SKIP
--------

Protocol version check not possible.
Details: Without a connection to the server it is not possible to check if the protocol version meets the requirements.

Test 13: SUCCESS
--------

Resource agents found.
Details: At least one resource agent has been found.

Directory listing of '/usr/share/akonadi/agents':
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
Directory listing of '/usr/share/akonadi/agents':
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

Environment variable XDG_DATA_DIRS is set to '/usr/share:/usr/share:/usr/local/share'

Test 14: SUCCESS
--------

No current Akonadi server error log found.
Details: The Akonadi server did not report any errors during its current startup.

Test 15: ERROR
--------

Previous Akonadi server error log found.
Details: The Akonadi server did report error during its previous startup into <a href='/home/xwarman/.local/share/akonadi/akonadiserver.error.old'>/home/xwarman/.local/share/akonadi/akonadiserver.error.old</a>.

File content of '/home/xwarman/.local/share/akonadi/akonadiserver.error.old':
Control process died, committing suicide!

Test 16: ERROR
--------

Current Akonadi control error log found.
Details: The Akonadi control process did report error during startup into <a href='/home/xwarman/.local/share/akonadi/akonadi_control.error'>/home/xwarman/.local/share/akonadi/akonadi_control.error</a>.

File content of '/home/xwarman/.local/share/akonadi/akonadi_control.error':
Unable to register service as org.freedesktop.Akonadi.Control Maybe it's already running?
"[
0: /usr/bin/akonadi_control(_Z11akBacktracev+0x39) [0x416779]
1: /usr/bin/akonadi_control() [0x416cba]
2: /lib/libc.so.6(+0x33af0) [0x7f7d32a9baf0]
3: /lib/libc.so.6(gsignal+0x35) [0x7f7d32a9ba75]
4: /lib/libc.so.6(abort+0x180) [0x7f7d32a9f5c0]
5: /usr/lib/libQtCore.so.4(_Z17qt_message_output9QtMsgTypePKc+0x74) [0x7f7d33c81844]
6: /usr/bin/akonadi_control(_ZN15FileDebugStream9writeDataEPKcx+0xa8) [0x417dc8]
7: /usr/lib/libQtCore.so.4(_ZN9QIODevice5writeEPKcx+0x77) [0x7f7d33d10417]
8: /usr/lib/libQtCore.so.4(+0x112529) [0x7f7d33d22529]
9: /usr/lib/libQtCore.so.4(_ZN11QTextStreamD1Ev+0x39) [0x7f7d33d23729]
10: /usr/bin/akonadi_control(main+0x466) [0x42bab6]
11: /lib/libc.so.6(__libc_start_main+0xfd) [0x7f7d32a86c4d]
12: /usr/bin/akonadi_control() [0x4120b9]
]
"

Test 17: SUCCESS
--------

No previous Akonadi control error log found.
Details: The Akonadi control process did not report any errors during its previous startup.

--------------------------------------------------------------------------------------------------------------------

For now I am able to see my 'old' addressbook currectly but not to start nepomuk file indexer automaticly at start up or find files, that would alrady been indexed.

What can I do?

P.S. I have more Akonadi Bug reports saved witch I made as I got the error with the driver conversion. I can send them too, if they can help.
Please let me know and thanks for your help!