Existing lock /var/run/yum.pid: yum锁定

[root@instructor Packages]# yum install elfutils-libelf-devel
Loaded plugins: refresh-packagekit, rhnplugin
This system is not registered with RHN.
RHN support will be disabled.
Existing lock /var/run/yum.pid: another copy is running as pid 2069.
Another app is currently holding the yum lock; waiting for it to exit...
The other application is: yum
Memory : 135 M RSS (438 MB VSZ)
Started: Sun Oct 21 05:15:24 2012 - 15:36 ago
State : Traced/Stopped, pid: 2069
Another app is currently holding the yum lock; waiting for it to exit...
The other application is: yum
Memory : 135 M RSS (438 MB VSZ)
Started: Sun Oct 21 05:15:24 2012 - 15:38 ago
State : Traced/Stopped, pid: 2069
Another app is currently holding the yum lock; waiting for it to exit...
The other application is: yum
Memory : 135 M RSS (438 MB VSZ)
Started: Sun Oct 21 05:15:24 2012 - 15:40 ago
State : Traced/Stopped, pid: 2069
/var/run/yum.pid^C
Exiting on user cancel.
#------------------------以上yum锁定
#-----------------------应清楚yum.pid
[root@instructor Packages]# rm /var/run/yum.pid
rm: remove regular file `/var/run/yum.pid'? y
[root@instructor Packages]# yum install elfutils-libelf-devel
Loaded plugins: refresh-packagekit, rhnplugin
This system is not registered with RHN.
RHN support will be disabled.
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package elfutils-libelf-devel.x86_64 0:0.148-1.el6 set to be updated
--> Finished Dependency Resolution
Dependencies Resolved
=============================================================================================================
Package Arch Version Repository Size
=============================================================================================================
Installing:
elfutils-libelf-devel x86_64 0.148-1.el6 InstallMedia 30 k
Transaction Summary
=============================================================================================================
Install 1 Package(s)
Upgrade 0 Package(s)
Total download size: 30 k
Installed size: 31 k
Is this ok [y/N]: y本文出自 “nest” 博客，请务必保留此出处http://cswggod.blog.51cto.com/4569505/1039694