==== 必填信息。没有填写将不予回复 ====
- iRedMail 版本号：latest
- 使用哪个数据库存储用户帐号（OpenLDAP，MySQL，PostgreSQL）：mysql
- 使用的 Linux/BSD 发行版名称及版本号：ubuntu 14.04
- 与您的问题相关的日志信息：* Start iRedMail Configurations
********************************************************************
[ INFO ] Create self-signed SSL certification files (2048 bits).
[ INFO ] Generate Diffie Hellman Group with openssl, please wait.
[ INFO ] Create required system account: vmail, iredadmin, iredapd.
[ INFO ] Configure Apache web server.
[ INFO ] Configure PHP.
[ INFO ] Configure MySQL database server.
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
[ INFO ] Setup daily cron job to backup SQL databases with /var/vmail/backup/backup_mysql.sh
[ INFO ] Configure Postfix (MTA).
[ INFO ] Configure Dovecot (POP3/IMAP/Managesieve/LMTP/LDA).
[ INFO ] Configure ClamAV (anti-virus toolkit).
[ INFO ] Configure Amavisd-new (interface between MTA and content checkers).
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
[ INFO ] Configure SpamAssassin (content-based spam filter).
[ INFO ] Configure iRedAPD (postfix policy daemon).
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
[ INFO ] Configure iRedAdmin (official web-based admin panel).
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
[ INFO ] Configure Fail2ban (authentication failure monitor).
[ INFO ] Configure Roundcube webmail.
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
[ INFO ] Configure Awstats (logfile analyzer for mail and web server).

*************************************************************************
* iRedMail-0.9.5-1 installation and configuration complete.
*************************************************************************

< Question > Would you like to use firewall rules provided by iRedMail?
< Question > File: /etc/default/iptables, with SSHD port: 22. [Y|n]n
[ INFO ] Skip firewall rules.
[ INFO ] Updating ClamAV database (freshclam), please wait ...
ClamAV update process started at Sun Jul 31 07:16:27 2016
WARNING: Your ClamAV installation is OUTDATED!
WARNING: Local version: 0.98.7 Recommended version: 0.99.2
DON'T PANIC! Read http://www.clamav.net/support/faq
Downloading main.cvd [100%]
main.cvd updated (version: 57, sigs: 4218790, f-level: 60, builder: amishhammer)
daily.cvd is up to date (version: 22001, sigs: 469564, f-level: 63, builder: neo)
bytecode.cvd is up to date (version: 283, sigs: 53, f-level: 63, builder: neo)
Database updated (4688407 signatures) from db.local.clamav.net (IP: 69.12.162.28)
********************************************************************
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安装时候并没有让我填入mysql密码，手动在安装目录config文件中
export MYSQL_ROOT_USER='root'
export MYSQL_ROOT_PASSWD='root'
改了之后还是不行，请问安装之后，要在那里修改mysql密码？