Questions tagged [virsh]

Linux virtual machines manager.

Name

virsh - management user interface

Synopsis

virsh [ OPTION ]... [ COMMAND_STRING ]

virsh [ OPTION ]... COMMAND [ ARG ]...

Description

The virsh program is the main interface for managing virsh guest domains. The program can be used to create, pause, and shutdown domains. It can also be used to list current domains. Libvirt is a C toolkit to interact with the virtualization capabilities of recent versions of Linux (and other OSes). It is free software available under the GNU Lesser General Public License. Virtualization of the Linux Operating System means the ability to run multiple instances of Operating Systems concurrently on a single hardware system where the basic resources are driven by a Linux instance. The library aims at providing a long term stable C API . It currently supports Xen, QEmu, KVM , LXC , OpenVZ, VirtualBox and VMware ESX .

The basic structure of most virsh usage is:

virsh [OPTION]... <command> <domain> [ARG]...

Where command is one of the commands listed below; domain is the numeric domain id, or the domain name, or the domain UUID ; and ARGS are command specific options. There are a few exceptions to this rule in the cases where the command in question acts on all domains, the entire machine, or directly on the xen hypervisor. Those exceptions will be clear for each of those commands. Note: it is permissible to give numeric names to domains, however, doing so will result in a domain that can only be identified by domain id. In other words, if a numeric value is supplied it will be interpreted as a domain id, not as a name. The virsh program can be used either to run one COMMAND by giving the command and its arguments on the shell command line, or a COMMAND_STRING which is a single shell argument consisting of multiple COMMAND actions and their arguments joined with whitespace, and separated by semicolons between commands. Within COMMAND_STRING , virsh understands the same single, double, and backslash escapes as the shell, although you must add another layer of shell escaping in creating the single shell argument. If no command is given in the command line, virsh will then start a minimal interpreter waiting for your commands, and the quit command will then exit the program.

The virsh program understands the following OPTIONS .

-h, --help
Ignore all other arguments, and behave as if the help command were given instead.
-v, --version[=short]
Ignore all other arguments, and prints the version of the libvirt library virsh is coming from
-V, --version=long
Ignore all other arguments, and prints the version of the libvirt library virsh is coming from and which options and driver are compiled in.
-c, --connect URI
Connect to the specified URI , as if by the connect command, instead of the default connection.
-d, --debug LEVEL
Enable debug messages at integer LEVEL and above. LEVEL can range from 0 to 4 (default). See the documentation of VIRSH_DEBUG environment variable below for the description of each LEVEL .
-l, --log FILE
Output logging details to FILE .
-q, --quiet
Avoid extra informational messages.
-r, --readonly
Make the initial connection read-only, as if by the --readonly option of the connect command.
-t, --timing
Output elapsed time information for each command.
-e, --escape string
Set alternative escape sequence for console command. By default, telnet's ^] is used. Allowed characters when using hat notation are: alphabetic character, @, [, ], \, ^, _.
73 questions
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Is there a way to share host (ubuntu) file system with guest (centos 7)?

I am trying to use virsh and domain xml to launch a Centos 7 guest from ubuntu 16.04 LTS host. The "filesystem" node that i am using in domain xml is as below:
Swaru
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golang exec incorrect behavior

I'm using following code segment to get the XML definition of a virtual machine running on XEN Hypervisor. The code is trying to execute the command virsh dumpxml Ubutnu14 which will give the XML of the VM named Ubuntu14 virshCmd :=…
azizulhakim
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1 answer

virsh attatch-disk failed: no such file or directory

I'm using virsh attatch-disk to add a new device to a running guest under KVM: # virsh attatch-disk --source c.raw --target vdb the output is: error: Failed to attach disk error: Failed to open file 'c.raw': No such file or…
coanor
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Bridge not working in QEMU virsh

I have two production systems that are down. I did not set them up, and am new to QEMU and virsh. While there are two, I am really only concerned with the one server called sbs2011, since that is the most critical, and when that is fixed, then the…
stubsthewizard
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1 answer

Redhat virsh console vmname hangs (no network connectivity)

I am currently trying to console into my redhat linux vm using: virsh console GuestVM but the console just hangs when I type the command. I tried pressing "enter" but that didn't work. Also, I cannot ping it's IP address or hostname. So, I cannot…
Blckmamba
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Unable to resolve chef host while bringing vagrant machine up with libvirt provider

I have a simple Vagrantfile: Vagrant.configure(2) do |config| config.omnibus.chef_version = '12.9.38' config.vm.network "private_network", type: "dhcp" config.vm.boot_timeout = 60 config.vm.define "node0" do |node0| …
GALIAF95
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How can i check specific server running or not(using virsh commands), before I start | restart it?

I'm trying to restart, start, shutdown a specific virtual machine. Here, at first I want to check if the virtual machine is already in required state or not before I run the script. These are the list of VMs. [root@demohost05 ~]# virsh list…
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2 answers

virsh console hangs whenever I connect to Virtual Machine

Whenever I try to connect to VM using virsh console my screen hangs and displays: Connected to domain Escape character is ^] I have found many solutions on the internet but nothing has worked for me and I am even not able to…
sachin
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1 answer

Access guest from virsh

I am running Centos 7 x86-64. I installed a guest (again Centos 7) through kickstart as an exercise. I prepared my kickstart file, I validated it and I launched with virt-install. If something went wrong with the network configuration (During…
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2 answers

manage a kvm VM with libvirt

I run a kvm image with sudo kvm -m 512 -vnc :1,password /home/kvm/image/debian-8.2.qed ... how can I control this VM with virsh ? # virsh net-list --all Name State Autostart …
user3313834
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virsh console to KVM

When logged in through virsh console on to KVM. hostname is not shown properly in bash prompt. We are using 63 character hostname. KVM Guest OS: Red Hat Enterprise Linux Server release 7.9 (Maipo) Host OS: Red Hat Enterprise Linux Server release…
Vijay S B
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1 answer

How to get guest's IP address from Host server in KVM virtualization?

I used kvm as a hypervisor and I have some virtual machines on it. I can to ssh to the host (hypervisor server) and I want to get all virtual machines' IP addresses. Is there any way to get the virtual machines' IP addresses by virt tool or other…
Omidreza Bagheri
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How to know "domain" of VM?

It seems to me that I misunderstand something because of the fact that English is not my first language. The problem is explicitly described in the question. I run Windows XP using qemu from Linux and I want to manipulate it using virsh. But I have…
StrausMG
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