尝试安装 Infobright 时，无论我尝试什么，它都说它不能使用 mysql-user。
如果我尝试使用 dpkg -i infobright-4.0.7-0-i686-ice.deb，日志包含以下问题：
11:48:16 Installing infobright 4.0.7-0 (i686)
11:48:16 The installer will generate /tmp/ib4.0.7-0-install.log install trace log.
11:48:16 [step: pre (4.0.7-0, 1=upgrade)]
11:48:16 build type: static
11:48:19 [step: postun (4.0.7-0), 1=upgrade]
11:48:19 [step: post (4.0.7-0), 1=configure]
11:48:19 Install with RPM_INSTALL_PREFIX=/usr/local, current prefix=/usr/local/infobright, prefix_actual=/usr/local/infobright-4.0.7-i686
11:48:19 upgrade=
11:48:19 Config file /etc/my-ib.cnf created
11:48:19 sed -e 's+@BH_PORT@+5029+' -e 's+@BH_BASEDIR@+/usr/local/infobright-4.0.7-i686+' -e 's+@BH_SOCK@+/tmp/mysql-ib.sock+' -e 's+@BH_DATADIR@+/usr/local/infobright-4.0.7-i686/data+' < /usr/local/infobright-4.0.7-i686/support-files/my-ib-master.cnf.in > /etc/my-ib-master.cnf
11:48:19 sed -e 's+@BH_PORT@+5029+' -e 's+@BH_BASEDIR@+/usr/local/infobright-4.0.7-i686+' -e 's+@BH_SOCK@+/tmp/mysql-ib.sock+' -e 's+@BH_DATADIR@+/usr/local/infobright-4.0.7-i686/data+' < /usr/local/infobright-4.0.7-i686/support-files/my-ib-slave.cnf.in > /etc/my-ib-slave.cnf
11:48:19 Creating/Updating datadir and cachedir
11:48:19 Creating user mysql and group mysql
groupadd: Gruppe »mysql« existiert bereits.
useradd: Benutzer »mysql« existiert bereits
usermod: Keine Änderungen
11:48:19 Installing default databases
140902 11:48:19 [ERROR] Fatal error: Can't change to run as user 'mysql' ; Please check that the user exists!
140902 11:48:19 [ERROR] Aborting
140902 11:48:19 [Note] /usr/local/infobright-4.0.7-i686/bin/mysqld: Shutdown complete
11:48:19 =============ERROR=======================
11:48:19 Failed on infobright initialization. You can investigate /tmp/ib4.0.7-0-install.log and log files from /usr/local/infobright-4.0.7-i686/data.
11:48:19 At this stage the current installation may be broken. You need to uninstall it and
11:48:19 fix the cause before retrying the installation.
11:48:19 Possible reasons for the failure are: LDAP service is running or
11:48:19 system has unsupported glibc but nscd service is not running.
11:48:19 Possible work arounds are: If LDAP is running, you may stop LDAP service prior to the installation.
11:48:19 If you have unsupported glibc, you need to start nscd service prior to the installation.
11:48:19 =========================================
不幸的是，当我尝试从 tarball 安装它时，会发生类似的事情 - 每次140902 11:48:19 [ERROR] Fatal error: Can't change to run as user 'mysql' ; Please check that the user exists!都会出现错误并且安装无法完成。
在Infobright startup error: Fatal error:中，有人似乎有类似的错误，但并没有真正提出问题。有谁知道，如何解决这个问题？
另一个不相关的错误似乎是http://blog.oneiroi.co.uk/linux/mysql/cant-change-to-run-as-user-mysql-please-check-that-the-user-exists/：在这里，有人说我需要添加mysql-user。但是我检查了它，并且用户存在并且我能够以该用户的身份做某事。所以不幸的是，我看不到任何解决这个问题的方法。