Linux 虚拟机之--KVM的安装和配置（一）
系统环境：
操作系统： RedHat EL6.4(x86_64)
一、前言
KVM，即Kernel-based Virtual Machine的简称，是一个开源的系统虚拟化模块，自Linux 2.6.20之后集成在Linux的各个主要发行版本中。它使用Linux自身的调度器进行管理，所以相对于Xen，其核心源码很少。KVM目前已成为学术界的主流VMM之一。KVM的虚拟化需要硬件支持（如Intel VT技术或者AMD V技术)。是基于硬件的完全虚拟化。而Xen早期则是基于软件模拟的Para-Virtualization，
新版本则是基于硬件支持的完全虚拟化。但Xen本身有自己的进程调度器，存储管理模块等，所以代码较为庞大。广为流传的商业系统虚拟化软件VMware ESX系列也是基于软件模拟的Para-Virtualization。
二、配置环境
软件包组：
virtualization 提供虚拟机的环境，主要包含qemu-kvm
virtualization-client 管理和安装虚拟机实例的客户端，主要有python-virtinst,virt-manager,virt-viewer
virtualization-platform 提供访问和控制虚拟客户端的接口，主要有libvirt，libvirt-client
virtualization-tools 管理离线虚拟机镜像的工具，主要有libguestfs
根据需求选择软件包，一般都安装前三个，也可以只安装个别主要的包。
为了减少不必要的麻烦，请关闭防火墙和SELinux
# cat /proc/cpuinfo |grep flags 需要全虚拟化支持为vmx(Inter)或svm（AMD）
三、安装KVM软件包
1、查看主机CPU信息
[root@rh64 ~]# cat /proc/cpuinfo|grep flag
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx rdtscp lm constant_tsc up rep_good xtopology nonstop_tsc unfair_spinlock pni pclmulqdq monitor ssse3 cx16 sse4_1 sse4_2 popcnt aes xsave avx hypervisor lahf_lm
2、查看系统内核版本
[root@rh64 ~]# uname -a
Linux rh64 2.6.32-358.el6.x86_64 #1 SMP Tue Jan 29 11:47:41 EST 2013 x86_64 x86_64 x86_64 GNU/Linux
3、通过系统安装盘安装kvm软件包
[root@rh64 ~]# mount /dev/sr0 /media
mount: block device /dev/sr0 is write-protected, mounting read-only
[root@rh64 ~]# yum groupinstall "Virtualization" "Virtualization Client" "Virtualzation Platform"
Loaded plugins: product-id, refresh-packagekit, security, subscription-manager This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register. base | 3.9 kB 00:00 ... Setting up Group Process base/group_gz | 204 kB 00:00 ... Warning: Group Virtualzation Platform does not exist. Resolving Dependencies --> Running transaction check ---> Package hypervkvpd.x86_64 0:0-0.9.el6 will be installed ---> Package python-virtinst.noarch 0:0.600.0-15.el6 will be installed --> Processing Dependency: libvirt-python >= 0.2.0 for package: python-virtinst-0.600.0-15.el6.noarch ---> Package qemu-kvm.x86_64 2:0.12.1.2-2.355.el6 will be installed base/filelists_db | 3.7 MB 00:00 ... --> Processing Dependency: qemu-img = 2:0.12.1.2-2.355.el6 for package: 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 --> Processing Dependency: seabios >= 0.6.1.2-20.el6 for package: 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 --> Processing Dependency: vgabios-vmware for package: 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 --> Processing Dependency: vgabios-stdvga for package: 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 --> Processing Dependency: vgabios-qxl for package: 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 --> Processing Dependency: vgabios for package: 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 --> Processing Dependency: libspice-server.so.1(SPICE_SERVER_0.8.3)(64bit) for package: 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 --> Processing Dependency: libspice-server.so.1(SPICE_SERVER_0.8.2)(64bit) for package: 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 --> Processing Dependency: libspice-server.so.1(SPICE_SERVER_0.8.1)(64bit) for package: 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 --> Processing Dependency: libspice-server.so.1(SPICE_SERVER_0.6.0)(64bit) for package: 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 --> Processing Dependency: libspice-server.so.1(SPICE_SERVER_0.11.2)(64bit) for package: 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 --> Processing Dependency: libspice-server.so.1(SPICE_SERVER_0.10.4)(64bit) for package: 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 --> Processing Dependency: /usr/share/sgabios/sgabios.bin for package: 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 --> Processing Dependency: /usr/share/gpxe/virtio-net.rom for package: 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 --> Processing Dependency: /usr/share/gpxe/rtl8139.rom for package: 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 --> Processing Dependency: /usr/share/gpxe/rtl8029.rom for package: 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 --> Processing Dependency: /usr/share/gpxe/pcnet32.rom for package: 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 --> Processing Dependency: /usr/share/gpxe/e1000-0x100e.rom for package: 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 --> Processing Dependency: libusbredirparser.so.1()(64bit) for package: 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 --> Processing Dependency: libspice-server.so.1()(64bit) for package: 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 ---> Package virt-manager.x86_64 0:0.9.0-18.el6 will be installed --> Processing Dependency: gtk-vnc-python >= 0.3.8 for package: virt-manager-0.9.0-18.el6.x86_64 --> Processing Dependency: gnome-python2-gnomekeyring >= 2.15.4 for package: virt-manager-0.9.0-18.el6.x86_64 --> Processing Dependency: spice-gtk-python for package: virt-manager-0.9.0-18.el6.x86_64 ---> Package virt-top.x86_64 0:1.0.4-3.15.el6 will be installed ---> Package virt-viewer.x86_64 0:0.5.2-18.el6 will be installed --> Processing Dependency: libspice-client-gtk-2.0.so.4(SPICEGTK_1)(64bit) for package: virt-viewer-0.5.2-18.el6.x86_64 --> Processing Dependency: libspice-client-glib-2.0.so.8(SPICEGTK_1)(64bit) for package: virt-viewer-0.5.2-18.el6.x86_64 --> Processing Dependency: libspice-controller.so.0()(64bit) for package: virt-viewer-0.5.2-18.el6.x86_64 --> Processing Dependency: libspice-client-gtk-2.0.so.4()(64bit) for package: virt-viewer-0.5.2-18.el6.x86_64 --> Processing Dependency: libspice-client-glib-2.0.so.8()(64bit) for package: virt-viewer-0.5.2-18.el6.x86_64 --> Processing Dependency: libgtk-vnc-1.0.so.0()(64bit) for package: virt-viewer-0.5.2-18.el6.x86_64 --> Running transaction check ---> Package gnome-python2-gnomekeyring.x86_64 0:2.28.0-4.el6 will be installed ---> Package gpxe-roms-qemu.noarch 0:0.9.7-6.9.el6 will be installed ---> Package gtk-vnc.x86_64 0:0.3.10-3.el6 will be installed ---> Package gtk-vnc-python.x86_64 0:0.3.10-3.el6 will be installed ---> Package libvirt-python.x86_64 0:0.10.2-18.el6 will be installed ---> Package qemu-img.x86_64 2:0.12.1.2-2.355.el6 will be installed ---> Package seabios.x86_64 0:0.6.1.2-26.el6 will be installed ---> Package sgabios-bin.noarch 0:0-0.3.20110621svn.el6 will be installed ---> Package spice-glib.x86_64 0:0.14-7.el6 will be installed --> Processing Dependency: libcelt051.so.0()(64bit) for package: spice-glib-0.14-7.el6.x86_64 --> Processing Dependency: libcacard.so.0()(64bit) for package: spice-glib-0.14-7.el6.x86_64 ---> Package spice-gtk.x86_64 0:0.14-7.el6 will be installed ---> Package spice-gtk-python.x86_64 0:0.14-7.el6 will be installed ---> Package spice-server.x86_64 0:0.12.0-12.el6 will be installed ---> Package usbredir.x86_64 0:0.5.1-1.el6 will be installed ---> Package vgabios.noarch 0:0.6b-3.7.el6 will be installed --> Running transaction check ---> Package celt051.x86_64 0:0.5.1.3-0.el6 will be installed ---> Package libcacard.x86_64 0:0.15.0-2.el6 will be installed --> Finished Dependency Resolution Dependencies Resolved =================================================================================================== Package Arch Version Repository Size =================================================================================================== Installing: hypervkvpd x86_64 0-0.9.el6 base 17 k python-virtinst noarch 0.600.0-15.el6 base 490 k qemu-kvm x86_64 2:0.12.1.2-2.355.el6 base 1.3 M virt-manager x86_64 0.9.0-18.el6 base 1.0 M virt-top x86_64 1.0.4-3.15.el6 base 368 k virt-viewer x86_64 0.5.2-18.el6 base 200 k Installing for dependencies: celt051 x86_64 0.5.1.3-0.el6 base 50 k gnome-python2-gnomekeyring x86_64 2.28.0-4.el6 base 24 k gpxe-roms-qemu noarch 0.9.7-6.9.el6 base 219 k gtk-vnc x86_64 0.3.10-3.el6 base 95 k gtk-vnc-python x86_64 0.3.10-3.el6 base 17 k libcacard x86_64 0.15.0-2.el6 base 41 k libvirt-python x86_64 0.10.2-18.el6 base 457 k qemu-img x86_64 2:0.12.1.2-2.355.el6 base 469 k seabios x86_64 0.6.1.2-26.el6 base 91 k sgabios-bin noarch 0-0.3.20110621svn.el6 base 6.6 k spice-glib x86_64 0.14-7.el6 base 291 k spice-gtk x86_64 0.14-7.el6 base 54 k spice-gtk-python x86_64 0.14-7.el6 base 22 k spice-server x86_64 0.12.0-12.el6 base 326 k usbredir x86_64 0.5.1-1.el6 base 40 k vgabios noarch 0.6b-3.7.el6 base 42 k Transaction Summary =================================================================================================== Install 22 Package(s) Total download size: 5.6 M Installed size: 19 M Is this ok [y/N]: Downloading Packages: ------------------------------------------------------------------------------------------------------------------ Total 10 MB/s | 5.6 MB 00:00 Running rpm_check_debug Running Transaction Test Transaction Test Succeeded Running Transaction Warning: RPMDB altered outside of yum. ** Found 1 pre-existing rpmdb problem(s), 'yum check' output follows: openssl-1.0.1e-42.el6.x86_64 is a duplicate with openssl-1.0.0-27.el6.x86_64 Installing : usbredir-0.5.1-1.el6.x86_64 1/22 Installing : celt051-0.5.1.3-0.el6.x86_64 2/22 Installing : libcacard-0.15.0-2.el6.x86_64 3/22 Installing : spice-glib-0.14-7.el6.x86_64 4/22 Installing : spice-gtk-0.14-7.el6.x86_64 5/22 Installing : gtk-vnc-0.3.10-3.el6.x86_64 6/22 Installing : libvirt-python-0.10.2-18.el6.x86_64 7/22 Installing : python-virtinst-0.600.0-15.el6.noarch 8/22 Installing : gtk-vnc-python-0.3.10-3.el6.x86_64 9/22 Installing : spice-gtk-python-0.14-7.el6.x86_64 10/22 Installing : spice-server-0.12.0-12.el6.x86_64 11/22 Installing : 2:qemu-img-0.12.1.2-2.355.el6.x86_64 12/22 Installing : seabios-0.6.1.2-26.el6.x86_64 13/22 Installing : gpxe-roms-qemu-0.9.7-6.9.el6.noarch 14/22 Installing : sgabios-bin-0-0.3.20110621svn.el6.noarch 15/22 Installing : vgabios-0.6b-3.7.el6.noarch 16/22 Installing : gnome-python2-gnomekeyring-2.28.0-4.el6.x86_64 17/22 Installing : virt-manager-0.9.0-18.el6.x86_64 18/22 Installing : 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 19/22 Installing : virt-viewer-0.5.2-18.el6.x86_64 20/22 Installing : hypervkvpd-0-0.9.el6.x86_64 21/22 Installing : virt-top-1.0.4-3.15.el6.x86_64 22/22 Verifying : gnome-python2-gnomekeyring-2.28.0-4.el6.x86_64 1/22 Verifying : spice-glib-0.14-7.el6.x86_64 2/22 Verifying : virt-top-1.0.4-3.15.el6.x86_64 3/22 Verifying : vgabios-0.6b-3.7.el6.noarch 4/22 Verifying : 2:qemu-img-0.12.1.2-2.355.el6.x86_64 5/22 Verifying : sgabios-bin-0-0.3.20110621svn.el6.noarch 6/22 Verifying : spice-gtk-0.14-7.el6.x86_64 7/22 Verifying : celt051-0.5.1.3-0.el6.x86_64 8/22 Verifying : usbredir-0.5.1-1.el6.x86_64 9/22 Verifying : hypervkvpd-0-0.9.el6.x86_64 10/22 Verifying : gpxe-roms-qemu-0.9.7-6.9.el6.noarch 11/22 Verifying : libvirt-python-0.10.2-18.el6.x86_64 12/22 Verifying : spice-server-0.12.0-12.el6.x86_64 13/22 Verifying : virt-viewer-0.5.2-18.el6.x86_64 14/22 Verifying : virt-manager-0.9.0-18.el6.x86_64 15/22 Verifying : libcacard-0.15.0-2.el6.x86_64 16/22 Verifying : python-virtinst-0.600.0-15.el6.noarch 17/22 Verifying : seabios-0.6.1.2-26.el6.x86_64 18/22 Verifying : gtk-vnc-python-0.3.10-3.el6.x86_64 19/22 Verifying : gtk-vnc-0.3.10-3.el6.x86_64 20/22 Verifying : 2:qemu-kvm-0.12.1.2-2.355.el6.x86_64 21/22 Verifying : spice-gtk-python-0.14-7.el6.x86_64 22/22 Installed: hypervkvpd.x86_64 0:0-0.9.el6 python-virtinst.noarch 0:0.600.0-15.el6 qemu-kvm.x86_64 2:0.12.1.2-2.355.el6 virt-manager.x86_64 0:0.9.0-18.el6 virt-top.x86_64 0:1.0.4-3.15.el6 virt-viewer.x86_64 0:0.5.2-18.el6 Dependency Installed: celt051.x86_64 0:0.5.1.3-0.el6 gnome-python2-gnomekeyring.x86_64 0:2.28.0-4.el6 gpxe-roms-qemu.noarch 0:0.9.7-6.9.el6 gtk-vnc.x86_64 0:0.3.10-3.el6 gtk-vnc-python.x86_64 0:0.3.10-3.el6 libcacard.x86_64 0:0.15.0-2.el6 libvirt-python.x86_64 0:0.10.2-18.el6 qemu-img.x86_64 2:0.12.1.2-2.355.el6 seabios.x86_64 0:0.6.1.2-26.el6 sgabios-bin.noarch 0:0-0.3.20110621svn.el6 spice-glib.x86_64 0:0.14-7.el6 spice-gtk.x86_64 0:0.14-7.el6 spice-gtk-python.x86_64 0:0.14-7.el6 spice-server.x86_64 0:0.12.0-12.el6 usbredir.x86_64 0:0.5.1-1.el6 vgabios.noarch 0:0.6b-3.7.el6 Complete!
四、配置KVM建立虚拟机
[root@rh64 u02]# mkdir /u02/data //建立虚拟机存储空间
通过VNC连接主机，进行配置：
1、vnc连接
2、配置KVM
2、KVM安装包
4、提示启动“libvirt service”
[root@rh64 ~]# service libvirtd restart
Stopping libvirtd daemon: [FAILED]
Starting libvirtd daemon: [ OK ]
5、KVM虚拟机summary
6、建立虚拟机
7、选择虚拟机的操作系统和安装ISO
8、配置虚拟机Memory和CPU
9、设置虚拟机的Storage
10、虚拟机配置信息汇总
[root@rh64 ~]# service libvirtd status
libvirtd (pid 3163) is running...
查看建立的虚拟机的存储信息：
[root@rh64 ~]# cd /u02/data
[root@rh64 data]# ls
rh6.img
[root@rh64 data]# pwd
/u02/data
[root@rh64 data]# ls -l
total 8396812
-rwxr-xr-x 1 qemu qemu 8589934592 Nov 24 13:08 rh6.img
五、KVM基本的管理命令
[root@rh64 ~]# virsh
Welcome to virsh, the virtualization interactive terminal.
Type: 'help' for help with commands
'quit' to quit
virsh # help
Grouped commands: 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 p_w_picpath. blockresize Resize block device of domain. change-media Change media of CD or floppy drive console connect to the guest console cpu-baseline compute baseline CPU cpu-compare compare host CPU with a CPU described by an XML file 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-disk detach disk device detach-interface detach network interface domdisplay domain display connection URI 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 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 inject-nmi Inject NMI to the guest send-key Send keycodes to the guest managedsave managed save of a domain state managedsave-remove Remove managed save of a domain maxvcpus connection vcpu maximum memtune Get or set memory parameters migrate migrate domain to another host migrate-setmaxdowntime set maximum tolerable downtime migrate-setspeed Set the maximum migration bandwidth migrate-getspeed Get the maximum migration bandwidth numatune Get or set numa parameters 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-p_w_picpath-define redefine the XML for a domain's saved state file save-p_w_picpath-dumpxml saved state domain information in XML save-p_w_picpath-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 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 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 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 list list domains Host and Hypervisor (help keyword 'host'): capabilities capabilities connect (re)connect to hypervisor freecell NUMA free memory hostname print the hypervisor hostname node-memory-tune Get or set node memory parameters 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 qemu-attach QEMU Attach qemu-monitor-command QEMU Monitor Command qemu-agent-command QEMU Guest Agent Command 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 (but don't start) a physical host interface 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 Networking (help keyword 'network'): net-autostart autostart a network net-create create a network from an XML file net-define define (but don't start) a network from an XML file net-destroy destroy (stop) a network net-dumpxml network information in XML net-edit edit XML configuration for a network 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 an inactive 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 Secret (help keyword 'secret'): secret-define define or modify a secret from an XML file secret-dumpxml secret attributes in XML 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 (but don't start) a pool 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 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 a volume 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 a file into 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
virsh # start rh6
Domain rh6 started
virsh # list
Id Name State
----------------------------------------------------
1 rh6 running
virsh # console
error: command 'console' requires
virsh # console rh6
Connected to domain rh6
Escape character is ^]