Centos系統用遇到Another app is currently holding the yum lock問題的解決方案

問題描述】CentOs系統中使用yum安裝軟體，出現如下錯誤
[root@localhost ~]# yum install gnuradio usrp
Loaded plugins: fastestmirror
Existing lock /var/run/yum.pid: another copy is running as pid 15069.
Another app is currently holding the yum lock; waiting for it to exit...
  The other application is: yum-updatesd-he
    Memory :  17 M RSS ( 29 MB VSZ)
    Started: Wed May 25 20:58:54 2011 - 2:10:35 ago
    State  : Sleeping, pid: 15069
終止後重新運行問題依然

【解決方案】：
在命令列輸入：
#rm -f /var/run/yum.pid /sbin/service
#yum-updatesd restart
重新執行，問題解決