CentOS Linux安装OpenVZ虚拟化软件
时间：2020-01-09 10:43:27 来源:igfitidea点击:
如何在Red Hat Enterprise Linux或者CentOS Linux 5.x服务器下安装OpenVZ虚拟化容器软件？
可以使用yum命令本身安装OpenVZ。
您所要做的就是设置正确的存储库。
步骤1：设置Yum Repo
执行以下命令。
光盘到/etc/yum.repos.d
# cd /etc/yum.repos.d
下载Repo文件：
# wget http://download.openvz.org/openvz.repo
最后，导入GPG密钥：
# rpm --import http://download.openvz.org/RPM-GPG-Key-OpenVZ
步骤2：更新内核配置
执行以下命令以安装OpenVZ Linux内核以安装64位smp内核(最大支持64 GB的RAM)：
# yum install ovzkernel
输出示例：
Loaded plugins: fastestmirror, priorities Loading mirror speeds from cached hostfile * addons: centose.centos.org * updates: centosh3.centos.org * extras: centose.centos.org * rpmforge: apt.sw.be * base: centose.centos.org * openvz-kernel-rhel5: mirrors.nullroute.me * openvz-utils: mirrors.nullroute.me 396 packages excluded due to repository priority protections Setting up Install Process Parsing package install arguments Resolving Dependencies --> Running transaction check ---> Package ovzkernel.i686 0:2.6.18-128.1.1.el5.028stab062.3 set to be installed --> Finished Dependency Resolution Dependencies Resolved ============================================================================================================================================================== Package Arch Version Repository Size ============================================================================================================================================================== Installing: ovzkernel i686 2.6.18-128.1.1.el5.028stab062.3 openvz-kernel-rhel5 19 M Transaction Summary ============================================================================================================================================================== Install 1 Package(s) Update 0 Package(s) Remove 0 Package(s) Total download size: 19 M Is this ok [y/N]: y Downloading Packages: ovzkernel-2.6.18-128.1.1.el5.028stab062.3.i686.rpm | 19 MB 00:16 Running rpm_check_debug Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Installing : ovzkernel [1/1] Installed: ovzkernel.i686 0:2.6.18-128.1.1.el5.028stab062.3 Complete!
或者，执行以下命令以安装SMP + PAE支持+ 4/4GB拆分(最大支持64 GB RAM)内核：
# yum install ovzkernel-ent
您可以安装以下内核：
- ovzkernel：Virtuozzo Linux内核(Linux操作系统的核心)
- ovzkernel-PAE：为支持PAE的机器编译的Linux内核。
- ovzkernel-PAE-devel：用于构建内核模块以匹配PAE内核的开发包。
ovzkernel-devel：用于构建内核模块以匹配内核的开发包。- ovzkernel-ent：Linux内核，用于支持大型内存的计算机。
ovzkernel-ent-devel：用于构建内核模块以匹配ent内核的开发包。- ovzkernel-xen：为Xen VM操作而编译的Linux内核
ovzkernel-xen-devel：用于构建内核模块以匹配内核的开发包。
更新/etc/sysctl.conf
OpenVZ内核已安装并更新了GRUB配置，即在重启后，OpenVZ内核会自动启动。
但是，您需要对内核配置进行一些更改。
编辑/etc/sysctl.conf：
# vi /etc/sysctl.conf
设置参数如下：
# Enable packet forwarding enabled net.ipv4.ip_forward = 1 net.ipv6.conf.default.forwarding = 1 net.ipv6.conf.all.forwarding = 1 # Disable proxy arp net.ipv4.conf.default.proxy_arp = 0 # Enables source route verification net.ipv4.conf.all.rp_filter = 1 # Enables the magic-sysrq key kernel.sysrq = 1 # We do not want all our interfaces to send redirects net.ipv4.conf.default.send_redirects = 1 net.ipv4.conf.all.send_redirects = 0
保存并关闭文件。
禁用SELinux
您必须通过编辑/etc/sysconfig/selinux来禁用SELinux：
# vi /etc/sysconfig/selinux
放置以下指令：
SELINUX=disabled
保存并关闭文件。
安装VZ实用程序
执行以下命令：
# yum install vzctl vzquota
输出示例：
Loaded plugins: fastestmirror, priorities Loading mirror speeds from cached hostfile * addons: centosj-msync-dvd.centos.org * updates: centosh3.centos.org * extras: centose.centos.org * rpmforge: apt.sw.be * base: centosj3.centos.org * openvz-kernel-rhel5: openvz.mirrors.skynet.be * openvz-utils: openvz.mirrors.skynet.be 396 packages excluded due to repository priority protections Setting up Install Process Parsing package install arguments Resolving Dependencies --> Running transaction check ---> Package vzquota.i386 0:3.0.12-1 set to be updated ---> Package vzctl.i386 0:3.0.23-1 set to be updated --> Processing Dependency: vzctl-lib = 3.0.23-1 for package: vzctl --> Processing Dependency: libvzctl-0.0.2.so for package: vzctl --> Running transaction check ---> Package vzctl-lib.i386 0:3.0.23-1 set to be updated --> Finished Dependency Resolution Dependencies Resolved ============================================================================================================================================================== Package Arch Version Repository Size ============================================================================================================================================================== Installing: vzctl i386 3.0.23-1 openvz-utils 143 k vzquota i386 3.0.12-1 openvz-utils 82 k Installing for dependencies: vzctl-lib i386 3.0.23-1 openvz-utils 175 k Transaction Summary ============================================================================================================================================================== Install 3 Package(s) Update 0 Package(s) Remove 0 Package(s) Total download size: 400 k Is this ok [y/N]: y Downloading Packages: (1/3): vzquota-3.0.12-1.i386.rpm | 82 kB 00:00 (2/3): vzctl-3.0.23-1.i386.rpm | 143 kB 00:00 (3/3): vzctl-lib-3.0.23-1.i386.rpm | 175 kB 00:00 ------------------------------------------------------------------------------------------------------------------------------------------------------------- Total 40 kB/s | 400 kB 00:09 Running rpm_check_debug Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Installing : vzctl-lib [1/3] Installing : vzquota [2/3] Installing : vzctl [3/3] Installed: vzctl.i386 0:3.0.23-1 vzquota.i386 0:3.0.12-1 Dependency Installed: vzctl-lib.i386 0:3.0.23-1 Complete!
重新启动服务器
最后，重新启动您的机器并启动到新的OpenVZ内核中：
# reboot
