Linux的yum install 不能用并行的方法去运行

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我之前不知道yum install 不能用并行的方法去运行

（此处说的并行是开多个secureCRT同时去运行yum install，也就是说：只能一个yum install一个 yum install的运行），于是就有了下面的报错：

如下的环境是RHEL6.5 X86-64bit

[root@hostb dev]# yum -y groupinstall DesktopLoaded plugins: product-id, subscription-managerThis system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.Existing lock /var/run/yum.pid: another copy is running as pid 9237.Another app is currently holding the yum lock; waiting for it to exit... --------------->>>>注意此处的提示  The other application is: yum    Memory : 148 M RSS (463 MB VSZ)    Started: Sat Jan  2 12:48:04 2016 - 01:05 ago    State  : Running, pid: 9237Another app is currently holding the yum lock; waiting for it to exit...---------------->>>>每2秒重复一次  The other application is: yum    Memory : 148 M RSS (463 MB VSZ)    Started: Sat Jan  2 12:48:04 2016 - 01:07 ago    State  : Uninterruptible, pid: 9237Another app is currently holding the yum lock; waiting for it to exit...  The other application is: yum    Memory : 148 M RSS (463 MB VSZ)    Started: Sat Jan  2 12:48:04 2016 - 01:09 ago    State  : Uninterruptible, pid: 9237Another app is currently holding the yum lock; waiting for it to exit...  The other application is: yum    Memory : 148 M RSS (463 MB VSZ)    Started: Sat Jan  2 12:48:04 2016 - 01:11 ago    State  : Uninterruptible, pid: 9237^CExiting on user cancel.[root@hostb dev]#

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