Hi, My system is Ubuntu 10.04 64 bit. This cron error message is generated everyday. I can't found any related solution to it by search engine. Anybody has idea to correct it? It is not a fatal error but annoying. ================ Subject Cron <root@localhost> test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily ) Message contents /etc/cron.daily/logrotate: /usr/bin/mysqladmin: refresh failed; error: 'Unknown error' error: error running shared postrotate script for '/var/log/mysql.log /var/log/mysql/mysql.log /var/log/mysql/mysql-slow.log ' run-parts: /etc/cron.daily/logrotate exited with return code 1