最近我们的服务器之一失败，并不会启动服务。 我查看了/var/log/messages ，发现这个：
Dec 27 00:53:48 localhost apcupsd[3413]: apcupsd FATAL ERROR in linux-usb.c at line 609 Cannot find UPS device -- For a link to detailed USB trouble shooting information, please see <http://www.apcupsd.com/suppo$ Dec 27 00:53:48 localhost apcupsd[3413]: apcupsd error shutdown completed Dec 27 00:53:59 localhost kernel: Linux video capture interface: v2.00 Dec 27 00:53:59 localhost kernel: bttv: driver version 0.9.16 loaded Dec 27 00:53:59 localhost kernel: bttv: using 8 buffers with 2080k (520 pages) each for capture Dec 27 00:56:13 localhost ntpd[3397]: ntpd exiting on signal 15 Dec 27 00:56:13 localhost rpc.statd[3255]: Caught signal 15, un-registering and exiting. Dec 27 00:56:14 localhost kernel: Kernel logging (proc) stopped. Dec 27 00:56:14 localhost kernel: Kernel log daemon terminating. Dec 27 00:56:15 localhost exiting on signal 15
首先，我检查了其他服务器上的日志，发现关于apcpusd的前两个错误也存在，但之后没有错误。 服务器是运行Netavis Observer 4.3 CentOS 5.11