Console=ttyS0 ks=. APPENDIX A LIBVIRT XML SCHEMAS.

Note - The amount of memory must be greater than 4000 kilobytes,or you receive an error.setvcpussetvcpus domain countChange the number of virtual CPUs assignedto a logical domainshutdownshutdown domainShut down a logical domain gracefullyto the bound statestartstart domainStart an inactive or bound logical domainundefineundefine domainUndefine and delete an inactive logicaldomainvcpuinfovcpuinfo domainProvide basic domain virtual CPU informationversionversionShow the version of the libvirt library,the Logical Domains Manager, and the hypervisor. To Get Virtual CPU Information.To obtain virtual CPU informationfrom the control, or primary, domain, type:virsh # vcpuinfo primaryVCPU: 0CPU: 0State: runningCPU time: 1460460.0s.Output shows validCPU time only for CPUs in the control domain. This time is the samefor all CPUs and is the same as uptime for the control domain.To obtain virtual CPU information from a guest domain( ldom1 in this example), type:virsh # vcpuinfo ldom1VCPU: 0CPU: 15State: unknown.All guest CPU timeis not displayed.All guest CPU states are unknown.

I'm trying to install a fully virtualized guest (Fedora 14 x8664) on KVM (RHEL 6), using command-line only (both hypervisor and guest). It goes without errors, and without a tangible result. I'd like to know how to do a text-only installation.So, here's what I've done: # virt-install -name=FE -ram=756 -vcpus=1 -file=/var/lib/libvirt/images/FE.img -network bridge:br0 -nographics -os-type=linux -extra-args='console=tty0' -v -cdrom=/media/usb/Fedora-14-x8664-Live-Desktop.isoStarting install.Creating domain.

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0 B 00:00Connected to domain FEEscape character is ^每Now what? As I understand after googling for a couple of days, I should see the guest's output from the text installation, but nothing happens. Virt-viewer cannot connect to it, kindly suggesting that I explore all the options by adding -help (which I did).

If I reconnect with virsh, I see this: Domain installation still in progress. I had a similar problem when trying to perform a text-only installation of CentOS. It all boils down to adding kernel arguments for specifying serial output console console=ttyS0 so that you can then connect to it when -graphics none or -nographics is used. From virt-install's manual:-graphics noneNo graphical console will be allocated for the guest. Fully virtualized guests (Xen FV or QEmu/KVM) will need to have a text console configured on the first serial port in the guest (this can be done via the -extra-args option). Xen PV will set this up automatically.

The command 'virsh console NAME' can be used to connect to the serial device.I've managed to solve it in two ways:. by modifying the iso image and using the -cdrom option. by exposing the iso image as NFS share and using the -location option with -extra-args1. I've been doing my installations for a while now using cobbler and koan. Within cobbler I set my kernel options like so under my Centos60-x8664 profile: Kernel Options: serial console=ttyS0,115200Kernel Options (Post Install): console=ttyS0,115200After boot you can use console=tty0 console=ttS0,115200 to get console to show on two devices; this doesn't work for installation. If you edit the grub options under /etc/grub and regenerate grub.conf the serial console settings will survive a kernel upgrade.

Add 'text' to the kernel command line to prevent installer from starting a GUI.When my KVM guest instances start I then connect to them while logged into the KVM host and connect to a guest's console like this: root@vmhost # virsh console guestvmI then see this in my shell: Connected to domain guestvmEscape character is ^CentOS Linux release 6.0 (Final)Kernel 2.6.32-71.el6.x8664 on an x8664guestvm login:One final note, when I tell koan to start building one of my KVM guests, I call it with the -nogfx switch like so: koan -server 192.168.1.1 -virt -nogfx -system=guestvm.