我尝试在 Mac OS 主机的 CentOS VM 中安装 Parallels 工具并收到以下错误消息，
An error occurred while installing the following packages: │
│ - kernel-devel-2.6.32-279.14.1.el6.i686 │
│ - dkms │
│ │
│ Install these packages manually and start the Parallels │
│ Tools installation again.
我尝试安装dkms并收到提供的错误消息，
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
* base: mirror.dhakacom.com
* extras: mirror.dhakacom.com
* updates: mirror.dhakacom.com
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package dkms.noarch 0:2.4.0-1.20170926git959bd74.el6 will be installed
--> Processing Dependency: elfutils-libelf-devel for package: dkms-2.4.0-1.20170926git959bd74.el6.noarch
--> Running transaction check
---> Package elfutils-libelf-devel.i686 0:0.164-2.el6 will be installed
--> Processing Dependency: elfutils-libelf(x86-32) = 0.164-2.el6 for package: elfutils-libelf-devel-0.164-2.el6.i686
--> Running transaction check
---> Package elfutils-libelf.i686 0:0.152-1.el6 will be updated
--> Processing Dependency: elfutils-libelf(x86-32) = 0.152-1.el6 for package: elfutils-libs-0.152-1.el6.i686
--> Processing Dependency: elfutils-libelf(x86-32) = 0.152-1.el6 for package: elfutils-0.152-1.el6.i686
---> Package elfutils-libelf.i686 0:0.164-2.el6 will be an update
--> Running transaction check
---> Package elfutils.i686 0:0.152-1.el6 will be updated
---> Package elfutils.i686 0:0.164-2.el6 will be an update
---> Package elfutils-libs.i686 0:0.152-1.el6 will be updated
---> Package elfutils-libs.i686 0:0.164-2.el6 will be an update
--> Processing Dependency: libz.so.1(ZLIB_1.2.2.3) for package: elfutils-libs-0.164-2.el6.i686
--> Running transaction check
---> Package zlib.i686 0:1.2.3-27.el6 will be updated
--> Processing Dependency: zlib = 1.2.3-27.el6 for package: zlib-devel-1.2.3-27.el6.i686
---> Package zlib.i686 0:1.2.3-29.el6 will be an update
--> Running transaction check
---> Package zlib-devel.i686 0:1.2.3-27.el6 will be updated
---> Package zlib-devel.i686 0:1.2.3-29.el6 will be an update
--> Finished Dependency Resolution
Dependencies Resolved
================================================================================
Package Arch Version Repository
Size
================================================================================
Installing:
dkms noarch 2.4.0-1.20170926git959bd74.el6 epel 78 k
Installing for dependencies:
elfutils-libelf-devel i686 0.164-2.el6 base 32 k
Updating for dependencies:
elfutils i686 0.164-2.el6 base 255 k
elfutils-libelf i686 0.164-2.el6 base 204 k
elfutils-libs i686 0.164-2.el6 base 251 k
zlib i686 1.2.3-29.el6 base 73 k
zlib-devel i686 1.2.3-29.el6 base 44 k
Transaction Summary
================================================================================
Install 2 Package(s)
Upgrade 5 Package(s)
Total download size: 936 k
Is this ok [y/N]: y
Downloading Packages:
http://download.fedoraproject.org/pub/epel/6/i386/Packages/d/dkms-2.4.0-1.20170926git959bd74.el6.noarch.rpm: [Errno 14] Peer cert cannot be verified or peer cert invalid
Trying other mirror.
(2/7): elfutils-0.164-2.el6.i686.rpm | 255 kB 00:00
(3/7): elfutils-libelf-0.164-2.el6.i686.rpm | 204 kB 00:00
(4/7): elfutils-libelf-devel-0.164-2.el6.i686.rpm | 32 kB 00:00
(5/7): elfutils-libs-0.164-2.el6.i686.rpm | 251 kB 00:00
(6/7): zlib-1.2.3-29.el6.i686.rpm | 73 kB 00:00
(7/7): zlib-devel-1.2.3-29.el6.i686.rpm | 44 kB 00:00
Error Downloading Packages:
dkms-2.4.0-1.20170926git959bd74.el6.noarch: failure: Packages/d/dkms-2.4.0-1.20170926git959bd74.el6.noarch.rpm from epel: [Errno 256] No more mirrors to try.
之后，我尝试安装kernel-devel-2.6.32-279.14.1.el6.i686并yum收到以下错误消息，
$ yum install kernel-devel-2.6.32-279.14.1.el6.i686
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
* base: mirror.dhakacom.com
* extras: mirror.dhakacom.com
* updates: mirror.dhakacom.com
Setting up Install Process
No package kernel-devel-2.6.32-279.14.1.el6.i686 available.
Error: Nothing to do
需要澄清的是，这两个实例安装均不成功。然后，我奔跑，
$ yum install kernel-headers之后，我可以dkms使用前面提到的命令安装。
然后，我检查虚拟机中安装的内核开发版本，
$ yum list kernel-devel
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
* base: mirror.dhakacom.com
* extras: mirror.dhakacom.com
* updates: mirror.dhakacom.com
Installed Packages
kernel-devel.i686 2.6.32-754.2.1.el6 @updates
kernel-devel-2.6.32-279.14.1.el6.i686那么如何在CentOS机器上安装呢？我对 Linux 没有太多经验，所以如果有任何错误，请通知我。