I had a similar (or the same error) today. I found this in my syslog:
Apr 8 18:51:25 mail mysqld[30197]: 2016-04-08T16:51:25.015211Z 0 [ERROR] unknown variable 'myisam-recover=BACKUP'
Apr 8 18:51:25 mail mysqld[30197]: 2016-04-08T16:51:25.015314Z 0 [ERROR] Aborting
And an older message:
Apr 8 18:45:01 mail mysqld: 2016-04-08 18:45:01 28781 [Warning] Using unique option prefix myisam-recover instead of myisam-recover-options is deprecated and will be removed in a future release. Please use the
full name instead.
For me disabling the line "myisam-recover=..." in /etc/mysql/mysql.conf.d/mysqld.cnf and rerunning apt-get upgrade fixed the problem.
HTH
I had a similar (or the same error) today. I found this in my syslog:
Apr 8 18:51:25 mail mysqld[30197]: 2016-04- 08T16:51: 25.015211Z 0 [ERROR] unknown variable 'myisam- recover= BACKUP' 08T16:51: 25.015314Z 0 [ERROR] Aborting
Apr 8 18:51:25 mail mysqld[30197]: 2016-04-
And an older message: recover- options is deprecated and will be removed in a future release. Please use the
Apr 8 18:45:01 mail mysqld: 2016-04-08 18:45:01 28781 [Warning] Using unique option prefix myisam-recover instead of myisam-
full name instead.
For me disabling the line "myisam- recover= ..." in /etc/mysql/ mysql.conf. d/mysqld. cnf and rerunning apt-get upgrade fixed the problem.
HTH