xen host

When we use Xen virtualization, we often create virtual machines (VMS), and each installation creation step is tedious, this article describes the Virt-clone command to clone the Xen virtual machine combat. To see if the Virt-clone command existsRpm-qa | grep ' Virtinst\|libvirt ' Libvirt-0.8.2-29.el5_9.1libvirt-python-0.8.2-29.el5_9.1python-virtinst-0.400.3-13.el5 ...#或者Which Virt-clone/usr/bin/virt-clone#

Xen install virtual machines on UbuntuMethod OneDD an empty disksudo dd if=/dev/zero of=/home/vm1.img bs=1g count=8Download the Xen VM Common profilesudo wget http://mirrors.aliyun.com/ubuntu/dists/precise/main/installer-amd64/current/images/netboot/xen/xm-debian.cfg \-o/etc/xen/vm1.confModify the downloaded configurat

Xen and KVM are open source free virtualization software.VMware is a paid virtualization software.Hyper-V is special, the virtualization component that comes with Microsoft Windows R2, and if you buy enough licenses, Hyper-V (including Hyper-V core) can be used for free.In the case of a VMware or Hyper-V virtual Windows system, the license fee is paid for both the virtualization software itself and the subsystems within it.In the case of VMware or Hyp

System Environment: ubuntu 11.04 desktopStep 1: Prepare the source code and patch packageXen 4.0.1Linux Kernel 2.6.38.4Xen-patches-2.6.38-2Kernel configuration file --. configConfig.txt http://up.2cto.com/2012/0312/20120312020354999.txtBecause the blog attachment format is supported, after Downloading this file, change it to ". config"Three xen patch files (in the attachment ):Gcc-4.5.txthttp: // up.2cto.com/2012/0312/20120312020410240.txtBlk_linux.tx

1. Install the required packagessudoApt-getInstallBuild-essential binutils Python-dev libncurses5-Dev Libcurl4-openssl-dev Xorg-dev Uuid-dev bridge-Utils Bison Flex udev gettext bin86 bcc iasl libgcrypt11-dev Libssl-dev pciutils libglib2.0-DevGCC-multilib Texinfo zlib1g-DevsudoApt-getInstall GCCg++ Make PatchLibssl-devbzip2GetText zlib1g-dev python libncurses5-dev Libjpeg62-dev libx11-Dev libgcrypt11-devPkg-configBridge-utils bcc bin86 libpci-Dev libsdl-dev Python-dev texinfo Libc6-dev uuid-Dev

The Xen virtual opportunity defaults to bind the network adapter to the XENBR0,So if you need to switch to a different physical NIC, you need to configure the script or execute the command yourself.1. Add Script BindingsA. Write a script that specifies the relationship of the NIC to the bridge binding# Vim/etc/xen/network-wrapper#!/bin/sh/etc/xen/scripts/network-

When Xen is testing or tuning, you need to perform a lower level of detail analysis (such as the frequency of statistics vmexit, the type of vmexit, how much CPU time is consumed by vmexit), and then you can use the Xentrace tool.Xentrace is a tool that comes with the Xen source code and is generated by default when make Tools is compiled. Xentrace generated data is a binary format, the human eye can not di

Early Xen used the "ring" to exchange Io between guest and driver domain, because of the design constraints, the maximum IO for one processing was 1408K, so it became a performance bottleneck when dealing with large IO. In order to solve this problem, the Xen community has put forward the concept of indirect descriptors by reference to the realization of virtio. The following references and translations fro

Note: This article describes the Xen semi-virtualized NIC vif mechanism, carding function.The Xen block device driver uses the mechanism of the Xen IO ring.The role of Xen Hyprevisor is to provide a layer of protection between the virtual machine and the IO device, so that the data transfer mechanism is to move between

Adding a new system call to a Linux system typically requires three steps:1. Register the new system call number2. Update system Call Table3. Add a new functionAdding a hypercall to Xen is similar to adding a system tuning to Linux. is basically a few steps above. Now give a concrete example:For example, we want to add a print message in Xen Hypercall, the parameter has one, the type is char*, on behalf of

You shoshould always dedicate fixed amount of RAM for xen dom0. This can be done by specifying "dom0_mem = 512 M" option for xen hypervisor (usually xen.gz) in grub. conf/menu. lst. this makes sure the initial size of memory allocated for dom0 is 512 MB (Replace with the amount of memory you want), and the rest of the Ram is available for other guests in xen hy

Linux source version linux-3.14, can be obtained from https://www.kernel.org/. Since Dom0 (FEDORA19) is already available, it is now necessary to install Domu,domu with Xen source Minios, which is the minimum system for Xen clients and has the opportunity to try it out. This time I am configuring Linux to install. Refer to the Xen wiki page http://wiki.xenproject

Both the wiki and howto of xen only use apt-get to install ubuntu-xen-server or ubuntu-xen-desktop.Then, the system jumps to "restart to enter the dom0 kernel", but does not mention the installation of server or desktop, and does not install the kernel at all. It only produces an xen-3.3.gz. Hey ......After you use apt

In CentOS, determine whether your VPS is OpenVZ or Xen. Generally, VPS Virtualization Technologies include Xen, OpenVZ, Xen HVM, and VMware. How can we determine which virtualization technology your VPS is based on? 1. Run the ls/proc/command. Generally, the Xen VPS and/proc Directory have the

"Common failures" One, SR unrecognized, all virtual disk (VDI) lost Virtual Disk (VDI) Access times in the SR error Third, virtual disk (VDI) deletion or loss Iv. snapshots (snapshot) deleted or missing V. SR initialization Vi. the LVM structure of the SR is corrupted The PV partition Table of the SR belongs to the damaged Viii. Other Failures "Fault Analysis" The common fault is the user interface layer performance, to explore its solution in fact same, only need to understand the str

XEN install ubuntu 10.04 Virtual Machine Ubuntu 10.04 domUXen install Ubuntu 10.04 user-used Ubuntu text installer Ubuntu 10.04 can use the default text-based installer included in the Ubuntu release version install Xen CD user. First, create a new LVM volume for the guest virtual disk storage: www.2cto.com [root @ f13 ~] # Lvcreate-nubuntu01-L20G/dev/vg_f13 Logical volume "ubuntu01" created and then downlo

ArticleDirectory Libxenlight (libxl) Xapi Libvirt Xend One really great feature of xen is that there are several choices of toolstacks that can be used to manage it. before the introdcution of libxenlight, there was a complicated and inefficient toolstack situation. the issue was that xend, xapi, libvirt, etc. all needed to manage extends common low-level operations, which led to code duplication, ineffeciences, bugs, and wast

Environment: Ubuntu 10.10, kernel version 2.6.35.30, GCC 4.5 1. First, if you want to use the latest xen version, install mercurialSource codeManagement tool, and then use the following command Hg-V -- time clone http://xenbits.xen.org/hg/xen-unstable.hg 2. Official Website Http://xen.org/products/xen_source.html The xen source code for version 4.1.2 doe

KVM: (kernel-based virtual machine) kernel-based VMS KVM is hypervisor integrated into the Linux kernel, a full-virtualization solution for Linux with X86 architecture and hardware-enabled virtualization technology (Intel VT or AMD-V). It is a very small module of Linux, using Linux to do a lot of things, such as task scheduling, memory management and hardware device interaction and so on. In the form of presence, KVM is the two kernel modules Kvm.ko and Kvm_intel.ko (for AMD processors, the Kvm

Xen/include/asm-x86/page. h # Define mfn_valid (MFN) /* Convert Between xen-heap virtual addresses and machine addresses .*/// The xen heap occupies the first 12 Mb of the physical address space of the machine. Therefore, there is a fixed difference between the linear address and the physical address of the corresponding machine.// # Define pai_to_maddr (VA)