Különbségek

A kiválasztott változat és az aktuális verzió közötti különbségek a következők.

--- it:kvm [2015/03/28 18:02] – [Boot from CD] rblst
+++ it:kvm [2015/03/28 18:12] (aktuális) – [Stack] rblst
@@ Sor 1: / Sor 1: @@
+====== KVM ======
+===== Stack =====
+  - **KVM (Kernel Virtual Machine)**: kernel module for user space programs to utilize the [[wp> Hardware-assisted_virtualization|HW virtualization features]]  of CPUs
+    * exposes ''/dev/kvm'' (CPU, memory, I/O, network, maps video display back to host...)
+  -  **QEMU**: generic open source machine emulator and virtualizer
+      * virtualizer: executes the guest code directly on the host CPU
+      * userspace host using KVM (can also use Xen)
+      * falls back to software-only emulation without KVM
+      * SeaBIOS: open source implementation of a 16-bit x86 BIOS
+  - **libvirt**: open source API for platform virtualization (daemon and mgmt tool)
+       * manages KVM, QEMU (Xen, VMware ESX...)
+  - **virsh**: command line interface tool for managing guests and the hypervisor
+     * built on libvirt
+===== Virsh =====
+==== Boot from CD ====
+<code xml>
+ <disk type='file' device='cdrom'>
+      <driver name='qemu' type='raw'/>
+      <source file='/iso/CentOS-7.0-1406-x86_64-livecd.iso'/>
+      <target dev='hdd'/>
+      <readonly/>
+ </disk>
+</code>
+<code xml>
+<os>
+    <boot dev='cdrom'/>
+    <boot dev='hd'/>
+    <bootmenu enable='yes'/>
+</os>
+</code>
+==== Attach CD ====
+<code bash>
+virsh attach-disk domain1 /iso/CentOS-7.0-1406-x86_64-livecd.iso hdc --type cdrom --mode readonly
+</code>