我的MySQL服务器在Ubuntu服务器上崩溃。 我需要检索日志。 当执行以下操作时：mysql>显示像'％log％'这样的variables; 我得到：
+-----------------------------------------+---------------------------------------+ | Variable_name | Value | +-----------------------------------------+---------------------------------------+ | back_log | 50 | | binlog_cache_size | 32768 | | binlog_direct_non_transactional_updates | OFF | | binlog_format | STATEMENT | | binlog_stmt_cache_size | 32768 | | expire_logs_days | 10 | | general_log | ON | | general_log_file | /var/log/mysql/mysql.log | | innodb_flush_log_at_trx_commit | 1 | | innodb_locks_unsafe_for_binlog | OFF | | innodb_log_buffer_size | 8388608 | | innodb_log_file_size | 5242880 | | innodb_log_files_in_group | 2 | | innodb_log_group_home_dir | ./ | | innodb_mirrored_log_groups | 1 | | log | ON | | log_bin | OFF | | log_bin_trust_function_creators | OFF | | log_error | | | log_output | FILE | | log_queries_not_using_indexes | OFF | | log_slave_updates | OFF | | log_slow_queries | OFF | | log_warnings | 1 | | max_binlog_cache_size | 18446744073709547520 | | max_binlog_size | 104857600 | | max_binlog_stmt_cache_size | 18446744073709547520 | | max_relay_log_size | 0 | | relay_log | | | relay_log_index | | | relay_log_info_file | relay-log.info | | relay_log_purge | ON | | relay_log_recovery | OFF | | relay_log_space_limit | 0 | | slow_query_log | OFF | | slow_query_log_file | /var/lib/mysql/echidna-music-slow.log | | sql_log_bin | ON | | sql_log_off | OFF | | sync_binlog | 0 | | sync_relay_log | 0 | | sync_relay_log_info | 0 | +-----------------------------------------+---------------------------------------+ 41 rows in set (0.00 sec) 据我所知，没有文件定义logging错误，对不对？
即使我已经将以下内容添加到my.cnf：[mysqld_safe] log-error = /var/log/mysql/err.log
我怎样才能实现错误日志logging？
尝试将已经在[mysqld_safe]部分下的'log-error'定义移动到[mysqld]部分
所以：
[mysqld] log-error = /path/to/log/file