xen backup

Document directory Processor types and features --> This is my first time to fully compile the Linux kernel ...... However, starting from the higher version, many problems in the old kernel have been fixed by developers, but they are easier. Add xen support to the kernel. From version 2.6.39, the kernel can support xen dom0 and domu directly without patches.But it is not easy to change the

This article is based on the relevant content in chapter 3 of Hagen's "xen virtualization alization. Software packages are divided into required software packages and required software packages for runtime. For example, for Java applications, JDK must be installed during compilation and the Java Virtual Machine must be installed during runtime. The former is the software required for compilation, and the latter is the software required for runtime. Th

1. What is Xen?Xen virtual machine, or Xen VMM, is an open source project developed by the University of Cambridge Computer Lab, which enables users to create more virtual machines, each of which is an instance running on the same operating system.2. There are two ways to run the Xen virtual machineFully virtualized (f

Use virt-install to create an xen Virtual Machine [root @ gmnode14 vm01-CentOS-5.5] # virt-install-N vm01-CentOS-5.5-r 1024 -- vcpus = 4-F vm01-CentOS-5.5.img-s 20 -- nographic-l NFS: 10.10.113.14:/opt/centos/mirrors/5.5 ------------------------- Virt-install Parameter Parsing: -NVm01-CentOS-5.5#Virtual Machine name, here our name is vm01-CentOS-5.5 -R 1024 #The maximum memory size of the VM, in MB. Here our memory is 1 GB -- Vcpus = 4 #Number

In Xen 3.4.2, Xen Guest interrupts include both hardware interrupts and soft interrupts (Soft IRQ), in which the distribution of the former is held accountable after the Xen hypervisor, which is actually calling some functions in the Xen hypervisor. Can only be counted as simulations The file associated with the forme

The local clock in the Xen Linux machine is by default (done) synchronized with the physical host clock, in order to change the time it uses the Sync Service for NTP, the kernel parameters must be set by the virtual machine:Shell CodeEcho 1 >/proc/sys/xen/independent_wallclock The/etc/sysctl.conf configuration file in the virtual machine adds the following two and takes effect after reboot.Config code# Set

Xen architecture of the VPS typically not less than 10G (there are also special examples), generally based on the Xensystem panel VPS default Mount 10G hard disk (the first disk), the remaining capacity (the second disk) need to be mounted manually.1. View the hard drive conditionWe use Fdisk-l To view the current hard drive condition "disk/dev/xvdb:32.2 GB" means that the second virtual hard disk has 32.2GB capacity, "/dev/xvda 10.7GB" indicates

Xen p2m lock mutex wait Denial of Service Vulnerability (CVE-2014-9066) Release date:Updated on: Affected Systems:XenSource Xen> = 4.2XenSource XenDescription:Bugtraq id: 71546CVE (CAN) ID: CVE-2014-9066 Xen is an open-source Virtual Machine monitor developed by the University of Cambridge. Xen has the p2m lock mut

SUSE One-SP1 Installation mode KVM must manually install the KVM RPM package and bridge package, and after installation Reboot the load kernel to take effect. With a better focus on installation, Xen provides three options during the installation process, fully Virtualization, quasi-virtualization of Xen, Lite version of Xen virtualization (without window

Why does xen PV bootloader select bootloader = '/usr/bin/pygrub' Why? Pygrub enables you to start Linux Domus with the kernels that lie in the filesystem of the domu instead of with a kernel that lies in the filesystem of the dom0.this enables easier kernel update from domu or migration of hvm 'ed linuxes. Concept It is used as a Bootloader and provided with xen. pygrub behaves like grub and reads the

Configure xen in openstack First install Nova-compute-xen: APT-Get install Nova-compute-xen Configure NOVA: /Etc/NOVA/nova-compute.conf: -- Lib1__type = xen /Etc/NOVA. conf: -- Connection_type = libvirt -- Lib1__type = xen In this case

If you create a VM on a Xen server host, the VM is installed on a shared disk array. So if the host is down for hardware reasons, how to launch the VM on the shared disk on the other host to realize the VM's high availability. The advanced version and Enterprise version of Citrix Xen Server provide high availability support and require Xen server hosts to be in t

Release date:Updated on: Affected Systems:XenSource Xen 4.1.xXenSource Xen 3.xDescription:--------------------------------------------------------------------------------Bugtraq id: 63931CVE (CAN) ID: CVE-2013-4554 Xen is an open-source Virtual Machine monitor developed by the University of Cambridge. Xen has a loca

Add multiple Local Storage for the XEN Server. Assume that your XEN Server has two hard disks. Sda and sdb are used as the system disk, and the default Storage of the XEN Server also uses sda. What we need to do is to load the sdb to the xen Server as Storage. Step 1: Use fdisk format sdb (you can skip this step if for

0. the net bridge works on the data link layer. Under eth0 and eth1, after receiving the data packet, the net bridge forwards the packet to one or more NICs connected to the net bridge according to the MAC address. That is to say, if the bridge is not working properly, the network will be disconnected (if there is a bridge) 1. The default bridge started in xen is xenbr0. If you want to change it to your own bridge/Etc/

Set the xen domu Virtual Machine network to connect it to an external Machine Virt-Manager installs a fully virtualized xen Virtual Machine System, The network connection mode of the host is "Virtual Network". Select default for the device and set the IP address to static. After the installation is complete, it cannot be connected to the host. Therefore, IP addresses configured with DHCP can be pinged to t

Use the character tool xm to manage xen save, stop, and pause. Objective: To conveniently manage xen virtual machines by running the xm command. Command list: xm list: list of all known virtual machines xm create: Start an unmanaged Virtual Machine xm top: Provide an overview of the status of all virtual machines xm console: Open the console to manage virtual machines xm new: add a vm to the Xenbase hosting

Xen arch/x86/mm. c mod_l2_entry Privilege Elevation Vulnerability (CVE-2015-7835)Xen arch/x86/mm. c mod_l2_entry Privilege Elevation Vulnerability (CVE-2015-7835) Release date:Updated on:Affected Systems: XenSource Xen 3.4-4.6.x Description: CVE (CAN) ID: CVE-2015-7835Xen is an open-source Virtual Machine monitor developed by the University of Cambridge.In

CitrixVDISat inXenCreate a virtual Template The purpose of this article is to create a virtual machine on the xen server and convert it to a template for virtual desktop management.ProgramCall and Virtualize countless desktops for thin clients! After xen center is used to connect to the xen server, no table is displayed. We have already introduced it before. Th

The Installation notes of XEN under Centos5.5 failed to be installed under Centos6. It is said that the centos6 kernel has removed xen and needs to be compiled by itself. It is very troublesome to solve the dependency by yourself .... Therefore, the installation process is as follows. Install the Linux kernel that supports Xen and the