Virtualization is the process of using software to create a virtual resource of something; usually, it refers to hardware virtualization, the act of running an operating system (referred to as guest) inside an host system.
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Getting from proficient to expert [closed]
I've got my vacation coming in and thought I might use that for something useful. Essentially, I've been a Linux user since around 1995 when I installed Slackware 2.0 on my computer and have been ...
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2answers
358 views
VM benchmark tools?
I would like to benchmark of few XEN-constallations:
PV DomU
HVM DomU with PV network and disk drivers
HVM DomU with emulated IDE and PV network
The base will be the same VM with the same ...
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1answer
664 views
How to increase Xen guest CPU utilization?
My Xen dom0 is a Gentoo x64 pvops. I boot my guest Gentoo, in PV mode, system with the same kernel my dom0 uses. When I emerge in the guest system, building a CPP package, I am experiencing low CPU ...
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1answer
428 views
Xen domU fails to start with kernel panic
My dom0 is Gento 3.3.2, the kernel is compiled with Xen support. And I am planing to use the same kernel to boot my domU.
This is my domU configuration file:
1 vif = [ 'bridge=xenbr0' ]
2 vcpus ...
2
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1answer
960 views
PCI passthrough without VT-d
My CPU is Intel T9300, it supports VT-x, but it does not support VT-d. I am using Xen pvops virtualization. I have a PCI device, and my host system can work without it. So I am thinking if it is ...
2
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1answer
879 views
How to convert Windows 7 partitions to qcow2?
I know I can use qemu-img tool to convert a raw partition into a image file. But Windows 7 has two partitions. I tried:
qemu-img convert /dev/sda1 /dev/sda2 win7.qcow2
But the generated file does ...
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0answers
365 views
Debian VPS, no loop devices present, modprobe fails
After acquiring a new virtual Debian squeeze I ran into a problem regarding loop devices.
My plan was to set up an encrypted FS in a regular file and mount it. Unfortunately I can't do that since ...
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422 views
Any better alternative to chroot on an OpenVZ VPS?
Are there any better alternative to chroot environment?
I'm thinking about running nginx on a jailed environment.
BTW, I'm on OpenVZ VPS, so modifying the Kernel is a no-no.
(I think that prevents ...
3
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3answers
306 views
Problem with mount namespaces under Fedora
I've run into an odd problem regarding mount namespaces on Linux. I have two systems, both X86_64 running kernel 3.2.3-2 under Fedora 16. I am attempting to mount a tmpfs filesystem in a child ...
5
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6answers
246 views
How can I be sure that my server is not virtualised?
How can I make sure that my Linux server is running on a non-virtualised real box?
This is the scenario I am thinking of:
I install some distro on a rack-mounted server,
I rent some rack space on ...
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0answers
26 views
How to access the data stored in guest operating system(i.e Virtual machine) from Host system [duplicate]
Possible Duplicate:
Share memory between a virtual machine and the host
I wanted to access the data stored in virtual machine from my host machine.
I know that each VirtualMachine will have ...
3
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2answers
922 views
Fast X for LXC guest on localhost?
How can I run X apps inside an LXC container efficiently?
ssh -Y guest
is too slow - there is no graphics acceleration with ssh -Y - everything has to travel over the virtual network with the ...
3
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1answer
157 views
Custom live distro - ways to detect it is running inside virtual machine (or prevent running in VM altogether)
I am creating a custom live distro that will be a specialist work environment for those of my employees that are on the road.
I am looking for ways to detect or, ideally, prevent my live distro from ...
5
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8answers
1k views
WebGUI for Virtualization?
Are there any virtualizations that can be accessed via a WebGUI too?
I mean the administration part is enough on a terminal, but we need a virtualization/webgui solution for "customers".
So that ...
2
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1answer
72 views
Access times for different partitions on same hard disk
I have partitions, /dev/sda1 and /dev/sda2.
/ is mounted on /dev/sda1, while all other data is on sda2 which has more size allocated to it.
I want to save the virtual machine images (VirtualBox ...
7
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1answer
417 views
Lightweight virtualization on Linux with user isolation
What Linux-on-Linux virtualization technologies provide user isolation? Specifically, I want root in the virtual machine not to have any privilege on the host.
This was not the case for LXC, but was ...
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2answers
149 views
A reliable and free way to use Linux on Windows, multiprocessor and x86_64
I need a reliable and free virtual machine to run Linux on Windows, multiprocessor and x86_64. I need a good environment to compile and run ffmpeg and libvpx. I have used Mint Debian under Virtual ...
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1answer
2k views
How to check if VT-X is enabled in BIOS?
How to check if VT-X is enabled in BIOS?
I have vmx in CPU flags, and no access to the BIOS.
(I need to install a KVM VM on RedHat Enterprise Linux 6.1).
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1answer
326 views
Do I need hardware support for KVM for virtio paravirtualisation
Unfortunately I need to run virtual system on the machine without hardware support for visualisation. From kvm page I read that kvm is needed however it is not mentioned whether they mean the kernel ...
2
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0answers
122 views
VirtualBox appliance import locks up system
I have a Windows Vista x64 appliance that I am trying to import into the Open Source Edition of VirtualBox on Linux Mint 11 x86-64. The ovf file is 21.3 GB in size.
The problem I am having is that ...
3
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2answers
1k views
Mouting a kvm qemu disk image with multiple partitions
I am trying to mount a KVM-qemu disk image with this command:
sudo mount -o loop,offset=32256 centos6.img /mnt/centos6. But it shows this error: you must specify filesystem type. As I have more ...
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1answer
512 views
VirtualBox disk performance?
This option was newly added to latest version of VBox , googled a lot , seems no much information was revealed , could anyone please help me pick one disk format ?
Which one owns better performance ...
2
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1answer
267 views
Will VMX cpu flags increase the speed of virtual machine software , like VirtualBox?
On some CPUs, if I run grep vmx /proc/cpuinfo, I can see a vmx flag under the features entry. Will this feature speed up virtual machine software like VirtualBox?
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2answers
276 views
Can libvirt check if virtual machine is fully booted? Can another tool?
I currently have small VM to do certain tests (it has multiple benefits - like testing on another distribution, Fedora 15, as well as running make distcheck without the problem of polluting /).
...
