Linux Redhat Xen Virtualization study notes

This is before the time of learning 5.8xen virtualizationThe study notes

Although always feltxenBut fast become a zombieVirtualizationThis aspect is undeniable his powerful

especiallyredhat6Cancelledxen，xenGiving a feeling to be eliminated but canceled support for xen in my opinion it would be unwise

Or talkxenThe other pull much hurt the body

First, create a file，I was hard enough because I of course you can also use lvm directly under the root directory created

20,000 each to create a fast file size is zero 1m of this advance the created file in / xen / m1 in place while the virtual machine that you use to store

Install the virtual machine virtual machine is divided into two parts

1,Configuration file / etc / xen(You can modify memory and other things)

2,Virtual storage media / var / lib / libvirt / images (hvm is not the xen)

Check under your cpu is not support full virtualization the flags in / proc / cpuinfo in there

intel vmx(Cpu virtualization can be used for full virtualization)

amd SVM(Cpu virtualization can be used for full virtualization)

[root@tea ~]# cat /proc/cpuinfo 中

flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm hvm的虚拟机（hvm的xen不是这个）

Virtual storage location

Here is the name of the virtual machine you create a corresponding configuration of yum

The installation is complete restart to change the kernel

1 installation, file dd 6 Ge 20g before this step has been telling everyone operating a 2, lvm to create a partition 30-50g --->pv—>vg—>lv set up a ftp on your system,The mirror mount cdrom or iso / var / ftp / rhel5u8 paravirtualized command virt-install -r 1024 -n rhel5u8-1 –disk path=/dev/vg/lv -l ftp:Own ip / rhel5u8 –bridge = xenbr0 full virtual command virt-install -r 1024 -n rhel5u8-1 –file /xen/vm1 -l ftp:Own ip / rhel5u8 –bridge=xenbr0 –hvm file installed virt-install -r 1024 -n rhel5u8-1 –file /xen/vm1 –cdrom /root/rhel5.8.iso –bridge=xenbr0 –hvm

-r virtual machine's memory allocation unit mb

-n (/ etc / xen / configuration file of the same name) to the virtual machine settings name

–file –set the virtual machine disk storage medium (file location dd)

-l –Cdrom installation source specified virtual machine –Bridge bridge set up a virtual machine connection

–hvm 全 虚拟

Cloned virtual machine

After creating a virtual machine,You can create other virtual machines with virt-clone clone mode –original has been installed virtual name a few –Name name of new virtual machines –File Location file a new virtual machine

virsh list to view the virtual machine is running

virt-viewer virtual machine can be connected to the virtual machine name

virt start the virtual machine name to open a virtual machine

virt shutdown the virtual machine name off the virtual machine

Connect virtual machines virt-viewer virtual machine can be connected to the virtual machine name

ssh virtual machine virtual machine name ipvirsh console (console connected)

In fact, here is not finished at the virtual machine network card because the card also set here inside and outside the virtual machine is divided into inner and outer I would like to not have to say, if we chose to do what clusters within a collective way to modify virtual machine network adapter bridging

In the last two steps to solve remember you add delete modify the card number oh brctl delif xenbr0 vif16.0 brctl addif virbrbr0 vif16.0

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