CentOS 5 :: Virtualization - Server And Desktop ?
Feb 2, 2011
I have a customer who has (currently) three servers running Centos 5.5, one running Windoze 2003 and around thirty or so workstations running XP Pro.
I've just been reading about RedHat's product - RHEVD and was wondering of anyone knows if this product (or anything similar) is aavailable under CentOS.
Basically what we need to be able to do is to virtualize the XP workstations so that the staff can connect via a browser (inside the office or off-site - or for that matter anywhere) and be presented with a standard desktop.
I know I can achieve this using Citrix XenDesktop or VMWare View but I would prefer to use a FOSS solution if one exists. Having said that it has to be robust and well past Beta
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Mar 31, 2010
I installed the latest version of Centos 5.4.It came with Xen version 3.0.2 I think.I am running it on a Dell R510. It supports hardware virtualization.I was able to virtualize Windows XP and Windows 2003 server on it by selecting the install from DVD option.I was having problems trying to get a PCI DekTek card seen by the virtualized Windows domains so I tried to upgrade XEN to 3.4.2.I used the repos available from Gitmo and it went easy.
The only problem is now that when I try to create a "New virtual host" it only allows me to use HTTP, FTP option and not the iso or DVD option. They are greyed out. I was wondering if anyone has had this problem and might know a work around for the Xen 3.4.2 problem. Perhaps a better location for the kernel or something.
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Jun 26, 2009
The word on all lips are "virtualization" so I decided to smell this flavor.
I have a machine running CentOS 5.3 64bit and I have unlimited access to this machine, but I don't want to reach it physically.
Is it possible to install and maintain a virtual medium using ssh or other remote connection?
When I installed the OS I have selected the packets regarding the virtualization, but now from where can I start?
Is somewhere a guide for doing this?
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Jun 11, 2009
I had just put the last touch on a snort, mysql, apache, barnyard, base isntall to CentOs 5.3. I noticed that ifconfig displayed an odd virtual nic, and I wanted as little running on this machine as possible. I don't remember specifying that I wanted XEN installed. And on the old lowend machine that is powering this server, Virtualization was the last thing I wanted running on it. I did a google, discovered that the way to remove XEN completely (yum uninstall xen' only removed 'xen' but still, oddly, xen was running after a reboot. Talk about perplexing.
[Code]...
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Jul 22, 2011
I would like to try putting some kind of free "bare metal" visualization for desktop useage on my laptop. I've been googling about the possibilities, but still I'm not sure which would actually work in my case. I've seen VMWare ESXi which looks ok, but unfortunatelly it is meant for servers and I can't have ESXI and Sphere client on same laptop. Another candidate I found is KVM, but as much I've seen it requires VTx VTd support from hardware, which my laptop can't provide. The same requirements must be met for Citrix Xen Client, which is meant for desktop virtualizations, but because of lack of VTx and VTd, can't be used in my case. Is there any other possibility? Currently I'm using VirtualBox and VMWare player for virtualization purposes, but I would like to pull out more performance out of it, and a heavy OS on top of another heavy OS just isn't the best way.
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Apr 3, 2009
i'm a familiar with Linux environement ( fedora 10 user ) and i got a project in a training where i have to create a cluster with two nodes where i have to set up a number of VMs that will run applications such as ( Samba, Ldap, Zimbra, ...) but i don't know how to virtualize on top of a cluster ! i would like to know how that can be done, and how is it possible to let the VMs get ressources ( RAM & CPU ) from the two nodes ??
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Sep 22, 2009
I chose virtualization when installing Centos 5.3. The kernel I got is 2.6.18-128.el5xen My plan is to use KVM, I disable xend service. I don't need a xen enabled kernel. How do I update the kernel to a non xen one?
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May 28, 2009
I am trying to figure out how to get an almost bare metal virtualization running, and having a hard time getting it going I tryied the Virtual Machine manager, but it wont let me do full virtualization.
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Sep 25, 2009
I have centos 5.3 with text console onl, not X server, now I try install solaris 10 at xen with full virtualization (hvm)
Now I have some like "zombie domain"
How I can to kill this? If I reboot the server it doesn't help.
No fonts found; this probably means that the fontconfig library is not correctly configured. You may need to
edit the fonts.conf configuration file. More information about fontconfig can be found in the fontconfig(3) manual page and on [url] Domain installation does not appear to have been successful. If it was, you can restart your domain by running 'virsh start solhvm123'; otherwise, please restart your installation.
Do you know what this a problem?
If I chagne --vnc to --sdl and run below command on my desktop to appear windows and disappear for 1-3 seconds, virt-install -n solekhvm3 --ram 1024 --hvm --disk path=/dev/vol1/solek --sdl --cdrom /dev/cdrom --os-variant solaris10 --force
In log I have:
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Sep 1, 2010
If you select "support virtualization" during install, you get the xen kernel installed.
Some things do not work with this kernel (e.g. nVidia drivers). So my question is whether it is possible to install both kernels (xen and ordinary) and select between them with grub at boot time?
I did try this a while ago, by first installing with xen and then manualy adding the ordinary kernel, but the ordinary kernel failed to boot (for reasons I don't now recall - sorry). Clearly, there must be differences in the "virtualization" build other than the kernel.
The alternative, if I want to play with virtualization, would be to have two entirely separate installations, but this seems like a waste of space when surely almost everything must be identical?
I can't find anything in the Centos Xen documentation about this.
Before I try again I would just like to check if anyone actually knows if this is possible, or if not why not?
Or can it be done with KVM?
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Apr 2, 2011
I have done some googling - same question being asked by others but no answer I could find .. so here goes...
I am using Rhythmbox to listen to radio stations - I would like to import a lot of stations into it without having to go through a huge list adding individually. a good free Virtualization Software Package that work on OpenSuse with the KDE Desktop
Is there any way I could import a list somehow?
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Feb 17, 2009
and what is the diffrent. i now about the server only use command and desktop use both so. am trying to host some sites which one will you recomend.
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Jul 22, 2010
I have CentOS 5.5 and try to create KVM virtual machine with CentOS 5.5 as a guest. But when I exec command:
virt-install --connect qemu:///system --name test --ram 1024 --file=/var/lib/libvirt/images/test.img --file-size=10 --vnc --cdrom=/var/lib/libvirt/images/CentOS-5.5-x86_64-bin-DVD-1of2.iso --vncport=10000 --accelerate --os-type=linux --nonsparse --livecd --hvm
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Jun 2, 2011
I am leading a project at work that will require at least one new server. There will be a development server and a production server, which changes from development will be rolled onto. Unfortunately, I am more of a web programmer than a Linux guru, and I really don't know whether or not it is better to have two physical servers or two virtual servers on one machine. I don't think there will be a huge toll on the machine, as there will probably be around 1000 total users and less than 100 on at any given time. We are also able to spend quite a bit on the server, so I'm sure one could handle it, but I just wanted to check and see what the advantages and disadvantages would be in this situation.
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Jun 4, 2011
I cannot find the packages contain virt-manager and virt. Does anyone know where these are located on the CD or ISO?
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Jan 5, 2010
I have server with the relevant RPMs for virtualization, but i can't find the way to change it to be virtualization server. I am using Redhat 5.3 Do you have any relevant document for configure virtualization server after OS installation?
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Oct 4, 2010
Can anyone suggest a good free Virtualization Software Package that work on OpenSuse with the KDE Desktop, as I need to use Windows for some applications that have not got a Linux equivelant, Namely Reserch In Motions BlackBerry Desktop Manager and the drivers for my Printer and Scanner, so I would also need something with USB pass through. Or if there isn't any free virtualization software that will dowat I want that's free then something that is not expensive that's paid for. I like the look of Parallels Desktop 4 for Windows & Linux but I'm not sure if I would be able to justify paying �54.99 for the ammount of use that it will get?
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Jul 29, 2010
I'm currently in the last steps of migrating a CentOS mailserver to the x64 version.However, under the old 32 bit version, I was using XRDP to access the Centos box from my Windows boxes.However I can't seem to find the XRDP package in the standard repos so this is prompting me to look at possible alternatives (XRDP was incompatible with my windows 7 box anyway soI had to RDP to another server of ours running 2003 to RDP into the mailserver which was far from ideal).Basically, I'd like to be able to seamlessly access the Centos box with a standard RDP client.
I know VNC Server/Clients would be an option but RDP gives me the freedom of any windows box being able to access the server on the same adress/port without installing software on any windows box I encounter.Are there any viable alternatives to XRDP ?There's no "add-on" to VNC server that could enable it to accept RDP connections ?
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Jun 15, 2010
How to setup my server to use it remotely from my Home from a WindowsXP PC.I want to access my CentOS server. Please help me installing GUI or Remote desktop on my server.I have installed FREENX client on my WIndows XP PC now what next to do. what configuration do i need to do.If you have any link to tutorial please let me know.
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Oct 11, 2010
My centos server was startup to command line mode (console), and I install desktop on that server. after that I set up vncserver from putty, and connect to it using vncviewer, but I can not get into the desktop environment in installed but xwindow desktop instead, and if I try to "startx" in the vncviewer, error occurs, what's wrong ?
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Apr 27, 2011
I've done the following:
But when I connect via, VNC I get a minimalist screen and console.
I ran "startx" and got this:
I need to get a real desktop environment running on this box.
Centos 5.5.
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Jun 22, 2011
I have installed vnc-server and now if I would change the resolution in remote desktop I can't, I receive this error:
[URL]
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Feb 23, 2010
how to change CentOS 5.3 GNOME Desktop to KDE without effecting others configuration?
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Aug 29, 2011
iam using centos 5.4 and configured samba server and nfs server for fileserver.my problem is that when i login into root and saw desktop doesnot show any icon like computer ,trash , root home, and many others file which i saved in desktop.And also right click of mouse does not pop up menu.At the panel in side places there is "desktop" menu.but when i clicked on it , it gives error , files not found in its path. how to recover gnome desktop.or how can i get my desktop icon back...
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Oct 3, 2009
i find this is an issue which might be tiresome for everyone except for those experts. Esp. for the computers which are dual booting(both windows xp and centos installed in the same computer), that when we are in CentOS we need to switch onto windows immediately. and vice versa. i see this is possible only by shutting down the centos/windows and then restarting onto the other OS.
Can anyone tell me the the solution to work simultaneously both xp and centos without the need of shutting down and restarting There maybe or may not be the solution...but i find the pleasure to know if there is for example, remote desktop connection in windows xp, is there any solution, we can work on windows via centos or vice versa ( in the same machine),
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Mar 28, 2009
I am trying to install CentOS 5.2 on an HP rp5700 desktop unit. These units were originally sold as a Point of Sales unit I believe, but HP also markets it as a high life cycle server for SMB market.I tried to load CentOS on this unit via CD (created from downloaded ISO of course). It presents the initial CentOS banner page and waits for the obligatory "enter" to continue. It begins the boot process up to discovering the PCI stuff and just locks up, no response. I have to power down to restart.Since this does not even get to the point of installing. I am at a loss what to do next. Has anyone had a similar issue with other PCs.The boot stops at the lineACPI: PCI Root Bridge [PCI0] (0000:00)
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Apr 20, 2010
First problem:
apt-get --purge remove ubuntu-desktop
Reading package lists...
Building dependency tree...
Reading state information...
Package ubuntu-desktop is not installed, so not removed
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
I have installed Ubuntu desktop on Ubuntu Server to get Boinc manager running. Now I want to remove Ubuntu-desktop.
Second Problem: /etc/init.d/xorg start : No such file or directory When the server boots i get a blinking cursor.
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Dec 4, 2009
I messed up my kvm virtualization, I think. I want to reload it. I think I'm supposed to type yum install aptName.Is that right?Also, I don't know what to put in for aptName. I can't find the package names on the Fedora site. Where did they hide it? Also, where do I download apts. I searched with Google and find all kinds of sites I don't trust.
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Mar 16, 2010
I would like to run Fedora 12 in virtualization mode on my PC. Primary OS is Win 7 Pro X64 Can I use the Windows Virtual PC for this or a third party VM software is better. Any recommendations? Which version of Fedora 12 should I use ? Can I use the Live CD version ?
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May 6, 2011
I would like to know or to retrieve a guide with all the steps to follow to do a hardware virtualization in a 1.5 TB-HDD in which i want to have 2 VM with VT-d (Hardware virtualization) one VM with Opensuse 11.4 x64 and the other with Windows 7 x64. The fact is that I want to run both VM's at same time and I need aid and tips with Xen 4.1 because all the Tutorials and guides that I've seen are from non updated versions (3.0, 2.2...). Do I need 3 partitions to virtualize by hardware (one for the host and the other 2 for the VM's)?? Which host OS do you recommend me?
Is it hard to configure Xen and anyway, how to do it? Basically I'm a novice use of linux and my doubts come up refering to Xen configuration, installation and Hardware virtualization selection ( Graphic Card Virtualization above all) because if I have to touch the BIOS settings tell me how, or the application sets it by itself? What I want to virtualize is a 7 Professional 64bits with most of the Disk space (at least 1 TB)for gaming&multimedia, and Opensuse 11.4 64bits. I'll use suse to work & test software.
Motherboard Gigabyte GA-H67A-UD3H
Processor: Intel Socket 1155 - Intel Core I5 2400 3.1Ghz
OpenSuse 11.4 (default DVD kernel version)
RAM memory Kingston ValueRAM 8 GB DDR3 1333 in modules of 2.
Hard drive 3.5 SATA - Samsung HD154UI 1.5TB SATA2 32MB MAESTRO.
I'm not searching for software virtualization/ full virtualization / paravirtualization. I'm searching for vt-x, vt-d & Graphic card optimizing with windows emulated environment. And do you recommend me to use another Xen version or software to achieve this goal?
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