Kvm: Difference between revisions

From Bashlinux
Jump to navigationJump to search
Content deleted Content added
Manpaz (talk | contribs)
No edit summary
Manpaz (talk | contribs)
No edit summary
Line 1: Line 1:
__NOTOC__
__NOTOC__
= KVM =
= KVM =
== How to determine if the host can run virtualization on hardware ==
* If the CPU supports hardware virtualization then ensure it is enabled on BIOS
* If the CPU supports hardware virtualization then ensure it is enabled on BIOS
Line 8: Line 9:




== How to launch a fast instance ==
== How to quick launch an instance ==
Create and empty disk of 1Gb and launch a VM as:
Create and empty disk of 1Gb and launch a VM as:

Revision as of 08:21, 9 November 2012

KVM

How to determine if the host can run virtualization on hardware

  • If the CPU supports hardware virtualization then ensure it is enabled on BIOS
 # egrep -c '(vmx|svm)' /proc/cpuinfo
 


How to quick launch an instance

Create and empty disk of 1Gb and launch a VM as:

 # dd if=/dev/zero of=disk.img bs=1M count=1024
 # qemu-kvm -boot d -hda disk.img -cdrom /dev/cdrom
 
On Ubuntu use `kvm` instead `qemu-kvm` command

Where

  • `-boot` [order=drives][,once=drives][,menu=on|off]
  'drives': floppy (a), hard disk (c), CD-ROM (d), network (n)
  • `-hda/-hdb` file use 'file' as IDE hard disk 0/1 image
  • `-cdrom` file use 'file' as IDE cdrom image (cdrom is ide1 master)