Vbox/Vagrant cannot start virtual machine and I cannot open a console
location: linuxexchange.com - date: January 1, 1970
I have installed latest version of Vagrant and VirtualBox in a Windows Desktop. After do some changes in a linux virtual machine I ran
then the problem appears. The vm has some trouble, I can see it by the preview of VirtualBox Administrator but I don't know how to open console (like you do in Vmware) to fix the problem.
At the end vagrant gets a timeout but this problem makes that the other vm of the Vagrantfile will also won't boot.
Is there any way to open a console in VBox to fix this kind of problems?
Howto start KVM virtual machine with encrypted disk
location: ubuntuforums.com - date: January 27, 2013
How do you start a KVM virtual machine using either virsh or virt-manager on a remote server once you have encrypted the disk for this guest machine ? I.E where can you type in the password ?
I encrypted the qcow2 disk using the command....
qemu-img convert -o encryption -O qcow2 disk.qcow2 disk-encrypted.qcow2
Then edited the virtual machine to change the disk used to be the encrypted version.
Now I'm unsure how to get the 'console' up where I should type 'cont' and give the password.
The following article talks about the qemu monitor - but I'm unsure how to set this up / get to it ?
Thanks for any help,
Virtual Machine Got Frozen on start of installing FreeBSD, on CentOS6.3 KVM
location: linuxexchange.com - date: November 6, 2012
In the installation section, after I entered the virt-install command with proper arguments(shown below) to build the virtual hardware configuration, and connected to the vm console with vnc, I got a no-respond screen staying on the welcome of installment menu with the vcpu occupied 100%, so I cannot even take the next step on installation.
Whatever I adjusted the virt-install arguments, specified them or using default by omitting, it just didn't work and repeated the malfunction. But the KVM enviroment has no problem when I install any other vm using linux distribution like centos or opensuse.
So I want to know what's wrong with my freebsd vm configuration, or is it a hardware problem, e.g. referring to the specific CPU quality? And I want to get help on how to fix it.
128G SSD Plextor M5P
2T HDD Westdigital
Intel 1G ethernet card
Atheros 1G ethernet card
CentOS 6.3 Basic Server
How to install Windows 7 as a KVM Virtual Machine under Ubuntu.
location: ubuntuforums.com - date: October 17, 2009
Well one reason I do it is now I don't have to have a Dual Boot setup on my machine.
Now I always boot into Ubuntu initially and if I need Windows running I just goto System Tools - Virtual Machine Manager (or the command line) to start up Windows XP, Vista or Win7.
Once started it is running concurrently with my Ubuntu Linux so I can easily switch back & forth from Ubuntu to Windows while running applications in BOTH operating systems!
Better than dual-boot where your choice is run one or the other but NOT both simultaneously.
So whether you currently dual boot to WinXP, Vista or some other Operating System you can now use KVM on Ubuntu
Whether you want to create a KVM Virtual Machine (VM) of WinXP, Vista, WIN7 or any other operating system using both KVM and the KVM Virtual Machine Manager its a pretty simple process.
For the rest of this document assume we have the new Windows 7 (I'll refer to it as WIN7) and you want to install it as a KVM VM
What kernelbased virtual machine (KVM) means for gaming?
location: linuxquestions.com - date: December 30, 2006
I'm excited to hear about virtual machine technology being integrated into kernel 2.6.20.
Does this mean that I can boot into a Windows image within linux to play my favourite Windows-based games? I assume that speed won't be as fast as native, but pretty close. Is this correct?
My experience with virtualization is limited, I've only played with QEmu which is not a virtual machine, but an emulator. QEmu didn't allow me to install any drivers, so I never tested if 3D stuff worked.
Any other helpful info would be also appreciated.
Can KVM access a HyperV virtual machine directly
location: linuxquestions.com - date: March 5, 2012
Anyone know if it is possible to use a Hyper-V VM directly in KVM? just that I notice the storage format for the virtual disk now includes vdi which as far as I know is the format used by hyper-v.
How to KVM (Kernal virtual Machine)
location: ubuntuforums.com - date: November 1, 2008
How to KVM
Advantages of KVM
1. Open source solution, enough said.
2. Supports 64 bit hosts / guests as well as multiple CPU (I have used 8 virtual CPU without any issue). In general you want to use a max number of virtual CPU = to the number of physical CPU.
3. IMO, KVM is faster then VMWare and Virtual box, although this is obviously a subjective opinion and I kave no hard objective data to back that claim, your experience may vary.
Disadvantages of KVM
Perhaps the biggest disadvantage is that the the GUI interface (virt-manager) is not as polished. Personally I use KVM on the command line and write a "simple" script (with all the options) to launch a machine. It takes a little more time,
Home page : http://virt-manager.et.redhat.com/
Screen shots : http://virt-manager.et.redhat.com/screenshots.html
1. What is KVM ? "Kernel Based Virtual Machine".Home page: http://kvm.qumranet.com/kvmwiki2. Will my hardware support KVM ?
To test this open a termin
CPU usage is high by KVM virtual machine
location: linuxquestions.com - date: November 30, 2011
I run a virtual machine on host, I run the top command on host, it shows the CPU is 98%, but I run the top in virtual machine, it shows CPU usage is 10%.
My question is, why the CPU usage is different and how to find out the process in VM that cause the high CPU usage in host?
Thanks for any comment!
Virtual machine does not work after a save/restore (KVM)
- date: January 10, 2012
I have an Ubuntu Server 10.04 with KVM, the extensions in the BIOS are enabled:
INFO: Your CPU supports KVM extensions
INFO: /dev/kvm exists
KVM acceleration can be used
The problem is that when i do a save and a restore after of a virtual machine, the screen freezes and the ping does not respond after restored.
I've disabled the apparmor to dissmiss problems and continues not working.
Does somebody know why the vm does not restore normally?
Thanks a lot!
PD: the commands I'm using-->
virsh --connect qemu+ssh:///system save one-309 one-309
virsh --connect qemu+ssh:///system restore one-309
I've saved the debug logs with:
and this is the output (if I save logs with level 2 or greater I don't see any log which means that KVM or libvirt doesn't detect any error?):
10:49:31.794: debug : virInitialize:337 : register drivers
10:49:31.794: debug : virRegisterDriver:838 : regis
[SOLVED] How do I use virtio drivers in Debian in a KVM virtual machine?
location: linuxquestions.com - date: December 19, 2012
It amazes me how often I find the answer to a problem when I'm in the process of thinking through how I can most clearly state a question about it. Such was the case today. I'm posting it anyway since it might help someone else. Here is the question I had prepared to post:
I installed Debian Linux in a virtual machine under KVM on my Fedora host computer. Now I would like to install the virtio drivers.
But the virtio-modules package says,
Page: 1 2 3 4 5 6 7 8 9 10