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  • virsh 常用命令

    2016-02-22 20:15:57
    1.virsh list (--all) 列出所有的虚拟机 2.virsh console aming1 登录到指定的虚拟机 3.关闭虚拟机  1) # virsh shutdown aming1  直接 shutdown 是不行的,使用的 acpid 接口 ,现在没有...
    1.virsh list (--all) 
    
    列出所有的虚拟机
    2.virsh console aming1
    登录到指定的虚拟机
    3.关闭虚拟机
      1) # virsh shutdown aming1
        直接 shutdown 是不行的,使用的 acpid 接口 ,现在没有这个 接口,需要安装
               yum install -y acpid
                /etc/init.d/acpid start

      2)#virsh destroy aming2 
        直接关闭 虚拟机 aming2
    4.virsh --help 查看所有的命令
    5.virsh start aming1 --console
        开启 aming1 的虚拟机之后直接进入到控制台
    6.挂起跟恢复虚拟机
        #virsh suspend aming1
        挂起一台虚拟机
        #virsh resume aming1
        重新恢复虚拟机
    7.开机自启动
        #virsh autostart aming1
        母机开机自动启动 aming1
        #virsh autostart --disable aming1
        取消开机自动启动
    8.直接不要虚拟机
        #virsh destroy aming1
        #virsh undefine aming1
        (undefine 之后如何恢复 :
             # virsh dumpxml aming2 > /etc/libvirt/qemu/aming1.xml
             # vim !$
             # 修改 name ,uuid,disk 中的 source
             # virsh define /etc/libvirt/qemu/aming1.xml
        )
        #ls /data/kvm/aming1.img 删除这个磁盘文件
    展开全文
  • 定义:virsh definexxx.xml xxx为xml文件所在的路径及文件名称,在当前目录下则不写路径启动...停止:virsh shutdownxyz 此方法为正常关机方法,需要一段才能关机下电:virsh destroy xyz 此方法为暴力下电,虚拟...

    定义virsh definexxx.xml xxx为xml文件所在的路径及文件名称,在当前目录下则不写路径

    启动virsh start xyz xyz为虚拟机xml配置文件中虚拟机的名字<name>rhel6.2_2</name>

    停止virsh shutdownxyz 此方法为正常关机方法,需要一段才能关机

    下电virsh destroy xyz 此方法为暴力下电,虚拟机立即关闭

    删除virsh undefinexxx 关闭了的虚拟机,只是不在运行状态而已,通过virsh undefine xxx就能从virsh列表里面(virsh list查看当前系统中的虚拟机列表,详见第2.4节)将其删除,undefine命令不会删除镜像文件和xml文件。运行状态的虚拟机是不能删除的。

    临时起虚拟机:virsh create xxx.xml 此方法为方便开发调试等临时需求,不会持久化,虚拟机关机后就消失了,不推荐生产系统使用。

    查看VNC端口:virshvncdisplay xx 查看VNC端口,其中xx可通过virsh list查看

     

    参考资料:https://blog.csdn.net/jiahaojie1984/article/details/23425695

    展开全文
  • virsh [options]... [<command_string>] virsh [options]... <command> [args...] options: -c | --connect=URI hypervisor connection URI -d | --debug=NUM debug level [0-4] -

    安装libvirt-client

    yum install libvirt-client
    

    参数说明

    virsh [options]... [<command_string>]
    virsh [options]... <command> [args...]
    
      options:
        -c | --connect=URI      hypervisor connection URI
        -d | --debug=NUM        debug level [0-4]
        -e | --escape <char>    set escape sequence for console
        -h | --help             this help
        -k | --keepalive-interval=NUM
                                keepalive interval in seconds, 0 for disable
        -K | --keepalive-count=NUM
                                number of possible missed keepalive messages
        -l | --log=FILE         output logging to file
        -q | --quiet            quiet mode
        -r | --readonly         connect readonly
        -t | --timing           print timing information
        -v                      short version
        -V                      long version
             --version[=TYPE]   version, TYPE is short or long (default short)
      commands (non interactive mode):
    
     Domain Management (help keyword 'domain')
        attach-device                  attach device from an XML file
        attach-disk                    attach disk device
        attach-interface               attach network interface
        autostart                      autostart a domain
        blkdeviotune                   Set or query a block device I/O tuning parameters.
        blkiotune                      Get or set blkio parameters
        blockcommit                    Start a block commit operation.
        blockcopy                      Start a block copy operation.
        blockjob                       Manage active block operations
        blockpull                      Populate a disk from its backing image.
        blockresize                    Resize block device of domain.
        change-media                   Change media of CD or floppy drive
        console                        connect to the guest console
        cpu-stats                      show domain cpu statistics
        create                         create a domain from an XML file
        define                         define (but don't start) a domain from an XML file
        desc                           show or set domain's description or title
        destroy                        destroy (stop) a domain
        detach-device                  detach device from an XML file
        detach-device-alias            detach device from an alias
        detach-disk                    detach disk device
        detach-interface               detach network interface
        domdisplay                     domain display connection URI
        domfsfreeze                    Freeze domain's mounted filesystems.
        domfsthaw                      Thaw domain's mounted filesystems.
        domfsinfo                      Get information of domain's mounted filesystems.
        domfstrim                      Invoke fstrim on domain's mounted filesystems.
        domhostname                    print the domain's hostname
        domid                          convert a domain name or UUID to domain id
        domif-setlink                  set link state of a virtual interface
        domiftune                      get/set parameters of a virtual interface
        domjobabort                    abort active domain job
        domjobinfo                     domain job information
        domname                        convert a domain id or UUID to domain name
        domrename                      rename a domain
        dompmsuspend                   suspend a domain gracefully using power management functions
        dompmwakeup                    wakeup a domain from pmsuspended state
        domuuid                        convert a domain name or id to domain UUID
        domxml-from-native             Convert native config to domain XML
        domxml-to-native               Convert domain XML to native config
        dump                           dump the core of a domain to a file for analysis
        dumpxml                        domain information in XML
        edit                           edit XML configuration for a domain
        event                          Domain Events
        inject-nmi                     Inject NMI to the guest
        iothreadinfo                   view domain IOThreads
        iothreadpin                    control domain IOThread affinity
        iothreadadd                    add an IOThread to the guest domain
        iothreadset                    modifies an existing IOThread of the guest domain
        iothreaddel                    delete an IOThread from the guest domain
        send-key                       Send keycodes to the guest
        send-process-signal            Send signals to processes
        lxc-enter-namespace            LXC Guest Enter Namespace
        managedsave                    managed save of a domain state
        managedsave-remove             Remove managed save of a domain
        managedsave-edit               edit XML for a domain's managed save state file
        managedsave-dumpxml            Domain information of managed save state file in XML
        managedsave-define             redefine the XML for a domain's managed save state file
        memtune                        Get or set memory parameters
        perf                           Get or set perf event
        metadata                       show or set domain's custom XML metadata
        migrate                        migrate domain to another host
        migrate-setmaxdowntime         set maximum tolerable downtime
        migrate-getmaxdowntime         get maximum tolerable downtime
        migrate-compcache              get/set compression cache size
        migrate-setspeed               Set the maximum migration bandwidth
        migrate-getspeed               Get the maximum migration bandwidth
        migrate-postcopy               Switch running migration from pre-copy to post-copy
        numatune                       Get or set numa parameters
        qemu-attach                    QEMU Attach
        qemu-monitor-command           QEMU Monitor Command
        qemu-monitor-event             QEMU Monitor Events
        qemu-agent-command             QEMU Guest Agent Command
        reboot                         reboot a domain
        reset                          reset a domain
        restore                        restore a domain from a saved state in a file
        resume                         resume a domain
        save                           save a domain state to a file
        save-image-define              redefine the XML for a domain's saved state file
        save-image-dumpxml             saved state domain information in XML
        save-image-edit                edit XML for a domain's saved state file
        schedinfo                      show/set scheduler parameters
        screenshot                     take a screenshot of a current domain console and store it into a file
        set-lifecycle-action           change lifecycle actions
        set-user-password              set the user password inside the domain
        setmaxmem                      change maximum memory limit
        setmem                         change memory allocation
        setvcpus                       change number of virtual CPUs
        shutdown                       gracefully shutdown a domain
        start                          start a (previously defined) inactive domain
        suspend                        suspend a domain
        ttyconsole                     tty console
        undefine                       undefine a domain
        update-device                  update device from an XML file
        vcpucount                      domain vcpu counts
        vcpuinfo                       detailed domain vcpu information
        vcpupin                        control or query domain vcpu affinity
        emulatorpin                    control or query domain emulator affinity
        vncdisplay                     vnc display
        guestvcpus                     query or modify state of vcpu in the guest (via agent)
        setvcpu                        attach/detach vcpu or groups of threads
        domblkthreshold                set the threshold for block-threshold event for a given block device or it's backing chain element
    
     Domain Monitoring (help keyword 'monitor')
        domblkerror                    Show errors on block devices
        domblkinfo                     domain block device size information
        domblklist                     list all domain blocks
        domblkstat                     get device block stats for a domain
        domcontrol                     domain control interface state
        domif-getlink                  get link state of a virtual interface
        domifaddr                      Get network interfaces' addresses for a running domain
        domiflist                      list all domain virtual interfaces
        domifstat                      get network interface stats for a domain
        dominfo                        domain information
        dommemstat                     get memory statistics for a domain
        domstate                       domain state
        domstats                       get statistics about one or multiple domains
        domtime                        domain time
        list                           list domains
    
     Host and Hypervisor (help keyword 'host')
        allocpages                     Manipulate pages pool size
        capabilities                   capabilities
        cpu-baseline                   compute baseline CPU
        cpu-compare                    compare host CPU with a CPU described by an XML file
        cpu-models                     CPU models
        domcapabilities                domain capabilities
        freecell                       NUMA free memory
        freepages                      NUMA free pages
        hostname                       print the hypervisor hostname
        hypervisor-cpu-baseline        compute baseline CPU usable by a specific hypervisor
        hypervisor-cpu-compare         compare a CPU with the CPU created by a hypervisor on the host
        maxvcpus                       connection vcpu maximum
        node-memory-tune               Get or set node memory parameters
        nodecpumap                     node cpu map
        nodecpustats                   Prints cpu stats of the node.
        nodeinfo                       node information
        nodememstats                   Prints memory stats of the node.
        nodesuspend                    suspend the host node for a given time duration
        sysinfo                        print the hypervisor sysinfo
        uri                            print the hypervisor canonical URI
        version                        show version
    
     Interface (help keyword 'interface')
        iface-begin                    create a snapshot of current interfaces settings, which can be later committed (iface-commit) or restored (iface-rollback)
        iface-bridge                   create a bridge device and attach an existing network device to it
        iface-commit                   commit changes made since iface-begin and free restore point
        iface-define                   define an inactive persistent physical host interface or modify an existing persistent one from an XML file
        iface-destroy                  destroy a physical host interface (disable it / "if-down")
        iface-dumpxml                  interface information in XML
        iface-edit                     edit XML configuration for a physical host interface
        iface-list                     list physical host interfaces
        iface-mac                      convert an interface name to interface MAC address
        iface-name                     convert an interface MAC address to interface name
        iface-rollback                 rollback to previous saved configuration created via iface-begin
        iface-start                    start a physical host interface (enable it / "if-up")
        iface-unbridge                 undefine a bridge device after detaching its slave device
        iface-undefine                 undefine a physical host interface (remove it from configuration)
    
     Network Filter (help keyword 'filter')
        nwfilter-define                define or update a network filter from an XML file
        nwfilter-dumpxml               network filter information in XML
        nwfilter-edit                  edit XML configuration for a network filter
        nwfilter-list                  list network filters
        nwfilter-undefine              undefine a network filter
        nwfilter-binding-create        create a network filter binding from an XML file
        nwfilter-binding-delete        delete a network filter binding
        nwfilter-binding-dumpxml       network filter information in XML
        nwfilter-binding-list          list network filter bindings
    
     Networking (help keyword 'network')
        net-autostart                  autostart a network
        net-create                     create a network from an XML file
        net-define                     define an inactive persistent virtual network or modify an existing persistent one from an XML file
        net-destroy                    destroy (stop) a network
        net-dhcp-leases                print lease info for a given network
        net-dumpxml                    network information in XML
        net-edit                       edit XML configuration for a network
        net-event                      Network Events
        net-info                       network information
        net-list                       list networks
        net-name                       convert a network UUID to network name
        net-start                      start a (previously defined) inactive network
        net-undefine                   undefine a persistent network
        net-update                     update parts of an existing network's configuration
        net-uuid                       convert a network name to network UUID
    
     Node Device (help keyword 'nodedev')
        nodedev-create                 create a device defined by an XML file on the node
        nodedev-destroy                destroy (stop) a device on the node
        nodedev-detach                 detach node device from its device driver
        nodedev-dumpxml                node device details in XML
        nodedev-list                   enumerate devices on this host
        nodedev-reattach               reattach node device to its device driver
        nodedev-reset                  reset node device
        nodedev-event                  Node Device Events
    
     Secret (help keyword 'secret')
        secret-define                  define or modify a secret from an XML file
        secret-dumpxml                 secret attributes in XML
        secret-event                   Secret Events
        secret-get-value               Output a secret value
        secret-list                    list secrets
        secret-set-value               set a secret value
        secret-undefine                undefine a secret
    
     Snapshot (help keyword 'snapshot')
        snapshot-create                Create a snapshot from XML
        snapshot-create-as             Create a snapshot from a set of args
        snapshot-current               Get or set the current snapshot
        snapshot-delete                Delete a domain snapshot
        snapshot-dumpxml               Dump XML for a domain snapshot
        snapshot-edit                  edit XML for a snapshot
        snapshot-info                  snapshot information
        snapshot-list                  List snapshots for a domain
        snapshot-parent                Get the name of the parent of a snapshot
        snapshot-revert                Revert a domain to a snapshot
    
     Storage Pool (help keyword 'pool')
        find-storage-pool-sources-as   find potential storage pool sources
        find-storage-pool-sources      discover potential storage pool sources
        pool-autostart                 autostart a pool
        pool-build                     build a pool
        pool-create-as                 create a pool from a set of args
        pool-create                    create a pool from an XML file
        pool-define-as                 define a pool from a set of args
        pool-define                    define an inactive persistent storage pool or modify an existing persistent one from an XML file
        pool-delete                    delete a pool
        pool-destroy                   destroy (stop) a pool
        pool-dumpxml                   pool information in XML
        pool-edit                      edit XML configuration for a storage pool
        pool-info                      storage pool information
        pool-list                      list pools
        pool-name                      convert a pool UUID to pool name
        pool-refresh                   refresh a pool
        pool-start                     start a (previously defined) inactive pool
        pool-undefine                  undefine an inactive pool
        pool-uuid                      convert a pool name to pool UUID
        pool-event                     Storage Pool Events
    
     Storage Volume (help keyword 'volume')
        vol-clone                      clone a volume.
        vol-create-as                  create a volume from a set of args
        vol-create                     create a vol from an XML file
        vol-create-from                create a vol, using another volume as input
        vol-delete                     delete a vol
        vol-download                   download volume contents to a file
        vol-dumpxml                    vol information in XML
        vol-info                       storage vol information
        vol-key                        returns the volume key for a given volume name or path
        vol-list                       list vols
        vol-name                       returns the volume name for a given volume key or path
        vol-path                       returns the volume path for a given volume name or key
        vol-pool                       returns the storage pool for a given volume key or path
        vol-resize                     resize a vol
        vol-upload                     upload file contents to a volume
        vol-wipe                       wipe a vol
    
     Virsh itself (help keyword 'virsh')
        cd                             change the current directory
        echo                           echo arguments
        exit                           quit this interactive terminal
        help                           print help
        pwd                            print the current directory
        quit                           quit this interactive terminal
        connect                        (re)connect to hypervisor
    
    

    常用功能

    常规

    1. 进入到 virsh控制台
    virsh -c qemu:///system
    

    网络

    1. 删除virbr0虚拟网卡
    virsh net-destroy default
    virsh net-undefine default
    
    1. 通过xml文件创建一个虚拟网络
      vim /etc/libvirt/qemu/networks/vbr.xml
    <network>
      <name>vbr</name>                #vbr为虚拟网络的名字
      <bridge name="vbr"/>
      <forward mode="nat"/>
      <ip address="192.168.1.254" netmask="255.255.255.0">        #ip为192.168.1.254,相当于虚拟机网关
        <dhcp>
          <range start="192.168.1.100" end="192.168.1.200"/>     #DHCP自动分配ip范围是100-200
        </dhcp>
      </ip>
    </network>
    

    virsh net-define /etc/libvirt/qemu/networks/vbr.xml
    3. 启动虚拟网卡

    virsh net-start vbr
    

    4.设置虚拟网络开机自启动

    virsh net-autostart vbr
    

    储存

    1. 查看某一存储池的具体信息(以XML形式存在)
    virsh pool-dumpxml default 
    
    1. 查看存储池状态,结果类似于解析上面的XML
    virsh pool-info  default 
    
    1. 通过xml文件创建一个存储池
    virsh pool-create /home/dev/pool/pool2.xml
    
    1. 删除存储池
    virsh pool-destroy pool2
    
    1. 通过指定路径创建一个存储池
    virsh pool-define-as test_pool2 dir - - - - "/home/dev/pool/test_pool1"
    
    1. 启动存储池
    virsh  pool-start test_pool2
    
    1. 设置存储池为自动开始
    virsh pool-autostart test_pool2
    
    1. 在存储池中创建虚拟机存储卷
    virsh vol-create-as test_pool1 guest2-rhel6.1.img 8G --format qcow2
    
    1. 创建基于文件夹创建的存储池
    virsh pool-build test_pool2
    
    1. 删除存储卷
    virsh vol-delete --pool default Master-Node-1.qcow2
    

    说明:KVM存储池的配置文件默认存放于/etc/libvirt/storage

    virt使用

    1. 克隆虚拟机
    virt-clone --original Master-Node-1 --name Master-Node-2 --auto-clone
    
    展开全文
  • 虚拟化之KVM virsh常用命令篇

    千次阅读 2018-05-24 11:36:11
    1,查看运行的虚拟机virsh list2,查看所有的虚拟机(关闭和运行的虚拟机)virsh list --all3,连接虚拟机virsh console +域名(虚拟机的名称)4,退出虚拟机ctrl+]5,关闭虚拟机5.1 virsh shutdown +域名 这个时候我在...

    1,查看运行的虚拟机

    virsh list

    2,查看所有的虚拟机(关闭和运行的虚拟机)

    virsh list --all

    3,连接虚拟机

    virsh console +域名(虚拟机的名称)

    4,退出虚拟机

    ctrl+]

    5,关闭虚拟机

    5.1    virsh shutdown +域名  

    这个时候我在virsh list发现 test02这个虚拟机还是在运行的,并没有关闭。

    我们需要安装一个acpid的服务并启动它,什么是ACPI?

    ACPI是Advanced Configuration and PowerInterface缩写,高级配置和电源管理接口。

    acpid中的d则代表daemon。Acpid是一个用户空间的服务进程,它充当linux内核与应用程序之间通信的接口,负责将kernel中的电源管理事件转发给应用程序。

    Acpid是一个用户空间的服务进程,它充当linux内核与应用程序之间通信的接口,负责将kernel中的电源管理事件转发给应用程序。

    其实,说明了就是通过这个服务来执行电源关闭的动作,这也是为什么我们执行virsh shutdown +域名无法关机的原因。

    (子机安装acpid服务)yum install -y acpid

    /etc/init.d/acpid start

    如果此时我没法进入子机安装acpi协议的话,那么就无法关掉该虚拟机,此时可以用下面这种方法。

    5.2  virsh destroy +域名

    这种方式的关闭,是一种删除的方式,只是在virsh list中删除了该虚拟机。

     

    6,挂起虚拟机

    virsh suspend +域名

     

    7,恢复被挂起的虚拟机

    virsh resume +域名

     

    8,子机随宿主主机(母机)启动而启动

    virsh autostart + 域名

    9,取消自动启动

    virsh auotstart --disable +域名

    10,彻底删除虚拟机

    1, 删除虚拟机   virsh destroy +域名

    2,解除标记     virsh undefine +域名

    3,删除虚拟机文件  

     11,启动虚拟机并进入该虚拟机

    virsh start 域名 --console

    展开全文
  • virsh 命令详解

    千次阅读 2020-11-20 11:47:50
    virsh help 分组的命令: 域管理(虚拟机实例管理) Domain Management (help keyword 'domain'): attach-device 从一个XML文件附加装置 attach-disk 附加磁盘设备 attach-interface 获得网络界面 autostart ...
  • KVM virsh命令

    2020-06-19 17:52:32
    virsh shutdown -> 此方法为正常关机方法,需要一段才能关机 (下电) virsh destroy -> 此方法为暴力下电,虚拟机立即关闭 (删除) virsh undefine -> 关闭了的虚拟机,只是不在运行状态而已,通过virsh undefine xxx...
  • virsh shutdown强制关闭虚拟机的四种方法事出有因方法一、快捷键发起关机请求方法描述方法测试方法二、关闭 Ubuntu 中的关机/重启确认方法描述方法测试方法三、使用acpid服务一步到位shutdown方法描述方法测试方法四...
  • virsh destroy domain - 直接断电关闭虚拟机   1.3 虚拟机 CPU 的操作   cpu-stats 宿主机和虚拟机cpu 运行时间状态 [root@192.168.118.14 ~]#virsh cpu-stats centos CPU0:  cpu_time 131....
  • KVM的基本管理 查看虚拟机 前者只列出运行状态的虚拟机,后者全部列出来。 查看虚拟机的配置文件 配置文件重定向 将vm1配置文件重定向到VM6 修改配置文件 edit不像vi和vim,它直接打开就可以...virsh destroy vm1
  • virsh查看/管理虚拟机

    2019-05-22 09:00:53
    1.virsh查看/管理虚拟机 问题 本案例要求熟悉KVM虚拟化的virsh管理工具的的基本使用,从命令行来操作虚拟机,完成以下基本任务: 1)查看KVM服务器信息 2)列出有哪些虚拟机、指定虚拟机的状态 3)基本的开关机操作 4...
  • virsh常用命令 virsh start x 启动名字为x的非活动虚拟机 virsh list --all 列出虚拟机 virsh create x.xml 创建虚拟机(创建后,虚拟机立即执行,成为活动主机) virsh suspend x 暂停虚拟机 virsh resume x ...
  • virsh使用总结

    2019-08-01 10:06:00
    virsh -c qemu+tcp://1.1.1.1:16666/system 或 virsh -c remote2 (3) Qemu的主配置文件:/etc/libvirt/qemu.conf #qemu.conf是libvirt对QEMU驱动提供的配置文件,包括VNC/SPICE等和连接它们时采用的权限 #认证方式...
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