General :: Difference Between Qemu-kvm And Xen Virt-manager?
Aug 2, 2010
i heared that both modules are used to create virtual environment for linux, but what are the comparisons between them which differentiate them could you please explain them in brief .
I'm running some vm's in FC12 with kvm-qemu and using virt machine manager. I'd like to have some ports automatically forward on startup and be able to add redirections on the fly. Redirection on the fly is talked about here, but I am getting lost on what should be basic instructions.[URL]
As far as startup, In the past I just ran qemu from the cli and manually specified redirection with redir. I can't figure out how to do it with The virt machine manager which I am using to start my VM's now. I do not want the guests to see the host. From cli startup without virt machine manager, it looked like this: qemu -m 256 -hda vm.img -redir tcp:5555::80 -redir tcp:5556::445 &
Unable to complete install: 'Invalid install location: Mounting location nfs://192.168.1.12/var/ftp/pub/ failed' when i try to make virtual machine using virt-manager. i get this error.why this occur,please tell i take these steps for making virtual m/c.
1 change system ip into static and install virtualization group.
2 make one partition where i want to install vitual m/c
3 then vim /etc/exports, in which i give path where is data and give rw permission to all. then restart services of portmap and nfs.
4 then on login with xen kernel and on terminal i give virt-manager command and follow steps. at last i get above error. where i m wrong,clearify me so i make vir m/c .
i'm trying to install virt-manager , to run a couple of virtual machines, i created a virtual nic vnet0 and bridged it to my eth0, i have configured the /etc/network/interfaces file with proper static ip, but i beleive the network manager is renaming my nic to eth1 and causing all kinds of problems. I uninstalled network manager and now i can ping anywhere in the network, but not outside it. ie google.com
I downloaded EasyPeasy (EP) to evaluate whether I wanted to put it on my wife's EeePC 900. I thought, why not install it in a virtual machine on my desktop system in order to play with it and see what needs to be done to get all the programs she will need working before I do the actual installation? So, I launched virt-manager, and tried to set up a virtual machine for EP 1.6. Well, it appears to be launching EP, but when it comes up, I have the top bar, but the tabs and lcons that should be on the desktop are nowhere to be found. When I try to shut it down, the shutdown freezes, so I wind up killing the virtual machine after waiting several minutes.
Every time I try to do this, I get the same results. This is whether I choose KVM or QEMU for the virtual machine. I have created it with 1 Gb RAM and 1 processor, then created a 16 Gb virtual drive. I started with 0 pre-allocated for the drive. I tried again one more time but this time actually allocating the full amount of the virtual drive before starting to see if it made any difference. It didn't.
I also noticed that it is not recognizing that I have a DVD with the ISO written to it (it is a bit too big for a CD). There is no option to use a USB thumb-drive or SD card that I can find. So, it appears I am stuck with using the ISO for this installation. It said that there was no disc in /dev/sr0 or /dev/sr1, even though the proper disc was there.
Under advanced options, I have tried both X86_64 and i686 with equally bad results.
For Linux versions, although there is an option for Fedora 13 as a guest, there is not an option for Ubuntu Lucid, from which EasyPeasy 1.6 is derived. I have tried several of the install versions from the list in an effort to get this to work. It didn't.
I have a VM with Windows XP that is driving me crazy. Everything works great except the display windows (and networking, but that is a different story) I am open VirtManager and go to display the OS and the images will get distorted. I will open IE and scroll down a webpage and some of the text will remain still and others will move, leave an image of garbage. This makes it very aggravating to use. To clear the page I can shake the window (using the cursor not my hands) or move from one tab to another till it clears.. then if I scroll again I have to deal with it all over again.
I tried virt-manager 0.8.0-7 or 0.8.1-1, my guest like fedora 12 i386, ubuntu i686, win xp do not have any sound even they detect the driver(es1370 or ac97) correctly. I doubt it is because of the pulseaudio and the qemu's user. Qemu uses not my user, it uses qemu user.
If I uses qemu-kvm directly, it has sound and work fine.
My first post on openSUSE, since migrating from Ubuntu (didn't like Unity!). I've installed the virtualization packages from YAST2 and when I attempt to run virt-manager, it crashes. The error is Code: could not import gobject (could not find _PyGObject_API object) I've searched both these forums and via a general Google and although I've found posts, all of them are apparently resolved - but not mine.
My laptop is fully up to date and running Gnome 3 on openSUSE 11.4.Has anyone else come across this lately?
When I access the guest with ssh and use it from there, it's fast like a real machine. It's only very very slow within virt-manager console. I am using Fedora 14 x86_64.
I have been trying to set up bridged networking, but I keep failing. I am using Fedora 14 x86_64 KDE as host with qemu-kvm and SPICE. The plan is to install a windows server, a few windows clients and then rawhide as guests on that. Naturally I want to use bridged networking for the windows guests.[URL]..But those both leave the guest without internet access. Is it really this difficult, or am I doing it wrong(tm)?
I just upgraded from 10.04 to 10.10 and now virt-manager won't start. If I try from the menu, nothing happens. If I try and start it from the command line (as root) it give the error:
I've been using KVM with great results on Slackware but one thing about Xen 4 that appeals to me is VGA and PCI passthru. I did try to install the Xen Slackbuild some time ago but failed. I'm afraid I can't remember why now. As far as I remember the Slackbuild was just out a day or so, so perhaps there were unresolved issues in the early days. How is Xen now? Does it run as well as KVM, for HVM as well as PV guests? Does virt-manager allow you to create Xen VMs or just KVM VMs? I'm very happy with KVM on Slackware (and Xen on NetBSD) but as I say, the Xen 4 release has some enticing features which pretty much do away with dual- and multi-booting. Full-throttle graphics in a VM?
I installed the latest 10.04.1 server minimal install and enabled the virtualisation option. I compiled enough X so that I could run virt-manager and I was able to create a couple of VMs and run them and manage them, but the problem is that in the graphs in manager, I can only get CPU usage, not Disk or Network IO. The options are greyed out. Am I missing something required for these graphs to work ?
I want to experiment with pacemaker, and for that I'd like to start kvm virtual machines with the snapshot option, so that as soon as I stop the vm, all changes are gone and I can start over. Since I couldn't figure out how to setup networking (vm - vm and vm - public) with a kvm commandline without disturbing the Network Manager, I used the Virtual Machine Manager (VMM) for this.
It works now, but I cant see how to use the snapshot option with the VMM. On the other hand, I cant see how I start the resulting vm from the commandline. When I look at the process list, I see the command with these network options:
When I try this yum install kvm qemu libvirt python-virtinst qemu-kvm I become this error
Transaction Check Error: file /usr/share/man/man1/qemu-img.1.gz from install of qemu-img-0.10.5-1.el5.2.x86_64 conflicts with file from package kvm-qemu-img-83-164.el5_5.25.x86_64
I've just installed ubuntu 10.04 and see that there are a two type installation software? why there are two things? What are the benefits of these two? What are the Difference Between Synaptic Package Manager and Update Manager?
I have a query regarding top & virtual memory. When we run top it show VIRT (Virtual Mem), RES (Resident Mem) & SHR (Shared Memory). The total virtual memory of my machine is 4 GBs (2 GB RAM + 2 GB Swap), but still I am able to see a process showing 4000m virtual memory column. what it means, as its show VIRT Mem more than actual available VIRT memory
I have a tested and working ssh connection with my local network server. On Ubuntu it was simple to just add an ssh connection to Virtual Machine Manager to connect to 'hippopatamous.local' (yes thats the name of my server :P) but now that I'm in arch its different. I connect to the server using just 'hippopatamous' and on top of that its like the Virtual machine manager can't connect.
All it says is to make sure that libvirtd is running. I ssh-ed in to the server and make sure it was running. I even ran it on my local computer (this was before I remembered/realized this would be a server type daemon so running it locally wouldn't do anything)
I'm a new fedora-user and are having some problems setting ut everything as i want:
The host to always use WIFI The host to not see the ethernet-connection. The guest to use ethernet The guest to be able to get wifi when no ethernet is avaible. The guest to install from PXE
The guest is going to be a Windows 7. Nothing is done so far, as i cannot figure out how to do this.
Before upgrading to 11.4 i used the KDE Live CD and was impressed by the looks of the network manager applet, but when i installed KDE from the DVD, the default applet is different.
I am using DSL thru QEMU. I was able to install it to a hard drive image.I started the SSH Service but I'm not able to connect to it from my Win 7 box via putty. I've edited the hosts.allow file to ALLOW external usersI've turned on the 22 port on my win 7 box firewall.
today I setup a USB drive to use Qemu to boot Backtrack. It was so easy my grandma could do this! My thanks goes out to anyone who worked on the Qemu project!Now, I am wondering, how hard it is to get a distro to run persistently, using Qemu. I would like to have my .bashrc, apps I install, small scripts I write, etc. saved instead of the default bootup each time.
It doesn't matter which distro it is as long as it is Debian based. I did find this thread which I will try later but it sounds almost like I need to boot from USB first... not quite sure. I was hoping I could get further insight from someone before I waist too much time working toward something that will not happen.
I am running qemu version 0.13 on windows XP. My Host OS is Windows XP and my guest OS is Debian 4(Etch). How do I connect to internet from Debian OS? My windows OS can connect to Internet. The following is the launching command which I am using now to launch qemu in windows XP.
qemuqemu.exe -L "qemu" -boot c -hda "debian4.img" -m 512 -localtime -ctrl-grab -usb -net nic,model=ne2k_pci,macaddr=52:54:00:12:34:56 -net user -redir udp:161::161 -redir tcp:4440::22
I'm developing my own OS, but I'm having some problems with Qemu, because I need to change the floppy image from grub.img to os.img while the emulation is running, but how can I do this?
I can't use shutdown -h now because I don't have permission (or root)the university script I have tells me to use ctrl-alt-delete but that doesn't shut it down like it says it should, instead it restarts it... so whats the safe way of doing this?