centos 6.5 64位的机器，用yum装的php-fpm，因为特殊原因需要用root账号启动php-fpm，但是发现，启动不了。
1,修改user和group
# vim /etc/php-fpm.d/www.conf ; RPM: apache Choosed to be able to access some dir as httpd user = root //改为root ; RPM: Keep a group allowed to write in log dir. group = root //改为root
重启php-fpm时，报以下错误
ERROR: [pool www] please specify user and group other than root
[09-Jan-2015 16:54:26] ERROR: FPM initialization failed
解决办法：
# /etc/init.d/php-fpm stop //关闭php-fpm # nohup /usr/sbin/php-fpm -R >/dev/null 2>&1 & # echo "nohup /usr/sbin/php-fpm -R >/dev/null 2>&1 &" >> /etc/rc.local //加入开机启动
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作者:海底苍鹰
地址:http://blog.51yip.com/server/1688.html