The query Kees mentioned returned "0" for me as well. Did not have a duplicate user however.
This worked for me :
UPDATE mysql.user SET Super_priv ='Y' WHERE USER= 'mysql.session';
GRANT SELECT on performance_schema.* to 'mysql.session'@'localhost';
flush privielges;
Now the query Kees mentioned returns "1" and dpkg can continue its chores if I run "apt-get install -f)".
This is not an elegant workaround (only addresses a symptom) but good enough for me (since I'm not interested in the whole "debian-sys-maint framework" anyway) to get on my way...
The query Kees mentioned returned "0" for me as well. Did not have a duplicate user however.
This worked for me :
UPDATE mysql.user SET Super_priv ='Y' WHERE USER= 'mysql.session'; schema. * to 'mysql. session' @'localhost' ;
GRANT SELECT on performance_
flush privielges;
Now the query Kees mentioned returns "1" and dpkg can continue its chores if I run "apt-get install -f)".
This is not an elegant workaround (only addresses a symptom) but good enough for me (since I'm not interested in the whole "debian-sys-maint framework" anyway) to get on my way...