similar to: XenforCentOS6...need help to setup a PCI passthrough network

R Verzonden met mijn Windows Phone ________________________________ Van: centos-virt-request at centos.org<mailto:centos-virt-request at centos.org> Verzonden: ?6-?12-?2013 09:35 Aan: centos-virt at centos.org<mailto:centos-virt at centos.org> Onderwerp: CentOS-virt Digest, Vol 76, Issue 3 Send CentOS-virt mailing list submissions to centos-virt at centos.org To subscribe or

Hi, Actually, we study virtualization on CentOS with Xen, our goal is to test if the migration of Xen with SLES 11 to CentsOS. Our first tests are ok except for one problem and I don't find any solutions on the net. I hope, you can help me. The problem is that I can't connect to my vm desktop with Virt-Viewer. I follow the installation guide available for centos?:

Hello, we have a strange problem on a fresh install of CentOS 6.5. On the server we want to use Xen to host paravirtualised guests (the system has no hardware virtualization support). To manage the domain we would like to use libvirt. Xen and libvirt are set up as described here: http://wiki.centos.org/HowTos/Xen/Xen4QuickStart http://wiki.centos.org/HowTos/Xen/Xen4QuickStart/Xen4Libvirt When

Hi all, I'm trying to install libvirt for xen on a brand new, minimal installation of CentOS 7.5.1804. After installing the OS, I did a 'yum update' and followed the basic how-tos at https://wiki.centos.org/HowTos/Xen/Xen4QuickStart and https://wiki.centos.org/HowTos/Xen/Xen4QuickStart/Xen4Libvirt From previous experience, I know that the above steps worked fine. However,

Hi, after migrating to libvirt/libxl according to: https://wiki.centos.org/HowTos/Xen/Xen4QuickStart/Xen4Libvirt I've noticed that my Xen PV domains are being launched by qemu-system-i386 running under root privileges. I am wondering why is this? Previously no qemu process was used. If qemu is needed for some reason, are there any guidelines for non-root operation? Thanks -- Karel

Hi, spot on! On 6.9.2015 12:56, Pasi K?rkk?inen wrote: > On Sun, Sep 06, 2015 at 09:08:50AM +0200, Karel Hendrych wrote: >> Hi, after migrating to libvirt/libxl according to: >> > > Hi, > >> https://wiki.centos.org/HowTos/Xen/Xen4QuickStart/Xen4Libvirt >> >> I've noticed that my Xen PV domains are being launched by >> qemu-system-i386 running

Gene, I think you should find the answers in * http://wiki.centos.org/HowTos/Xen/Xen4QuickStart/Xen4Libvirt (bottom of page) * http://wiki.xenproject.org/wiki/Migration_Guide_To_Xen4.1%2B * http://wiki.xenproject.org/wiki/Network_Configuration_Examples_%28Xen_4.1%2B%29 * http://wiki.xenproject.org/wiki/XL_vs_Xend_Feature_Comparison may also be relevant If not, circle back to the list and I am sure

On Sun, Sep 06, 2015 at 09:08:50AM +0200, Karel Hendrych wrote: > Hi, after migrating to libvirt/libxl according to: > Hi, > https://wiki.centos.org/HowTos/Xen/Xen4QuickStart/Xen4Libvirt > > I've noticed that my Xen PV domains are being launched by > qemu-system-i386 running under root privileges. > > I am wondering why is this? Previously no qemu process was used.

... changing from: <driver name='file'/> to: <driver name='tap2'/> makes the domain start without QEMU. However I see much better performance with QEMU (close to dom0, tested using simple dd writes) than with tap2 driver. Is that expected? What's best practise to file based storage on latest CentOS6-xen (Kernel 3.18.17, Xen 4.4.2-7) Are there any guides

Comparing simple dd bs=1M count=10000 on dom0 vs domU. Qemu driver is achieving pretty much the same like dom0. Thanks -- Karel On 7.9.2015 21:45, Pasi K?rkk?inen wrote: > On Mon, Sep 07, 2015 at 05:47:39PM +0200, Karel Hendrych wrote: >> ... >> >> changing from: <driver name='file'/> to: <driver name='tap2'/> makes >> the domain start

On Mon, Sep 07, 2015 at 05:47:39PM +0200, Karel Hendrych wrote: > ... > > changing from: <driver name='file'/> to: <driver name='tap2'/> makes > the domain start without QEMU. > > However I see much better performance with QEMU (close to dom0, > tested using simple dd writes) than with tap2 driver. Is that > expected? > How did you measure

Good test, non-buffered dom0 dd write speed is similar with tap2. I'll likely stay with the QEMU backend. Are there any best practises regarding security, at least if QEMU can operate under non-root account? Cheers -- Karel On 12.9.2015 10:51, Pasi K?rkk?inen wrote: > On Sat, Sep 12, 2015 at 01:35:48AM +0200, Karel Hendrych wrote: >> Comparing simple dd bs=1M count=10000 on dom0

On Sat, Sep 12, 2015 at 01:35:48AM +0200, Karel Hendrych wrote: > Comparing simple dd bs=1M count=10000 on dom0 vs domU. Qemu driver > is achieving pretty much the same like dom0. > So you're measuring buffered speed. Try measuring non-buffered (iflag=direct or oflag=direct, depending if you're reading or writing). -- Pasi > Thanks > -- > Karel > > On 7.9.2015

I have seen those documents, I did not see anything that indicates how _automatic_ bridge configuration could be enabled with xl. For my specific set up I have two bridges (xenbr0 -> peth0 & xenbr1 -> peth1). If I have to configure this manually with ifcfg scripts I will, but if an automatic method is provided or is possible with xl I'd prefer to use that. -Gene On Thu, Jan 29,

Hello, I posted a question over at xenproject.org but it was recommended that I send out a message here for help. My post there: http://www.xenproject.org/help/questions-and-answers/vanilla-pv-centos-guest-via-kickstart-centos-6-6,-xen-4-4.html The TL;DR is: Everything I've found to kickstart a new vanilla rhel/centos guest points to specifying a kernel & and initrd- for RHEL/Centos 5.

Why do you need UEFI? It does not add to security "a lot" but was designed to block booting software like a "hypervisor". I used my Dell notebooks to test our hypervisor identification software (HyperCatcher if you are interested) which is bootable image. However, I was unable to boot it until I disabled UEFI. As I understand it, it will block anything from booting excepting

In honor of Xen Doc Day, I've put up some basic HOWTOs for setting up bridging on CentOS 6 and 7. I'm far from an expert, so I'd appreciate any feedback. The howtos can be found here: https://wiki.centos.org/HowTos/Xen/Xen4QuickStart/Xen4Networking6 https://wiki.centos.org/HowTos/Xen/Xen4QuickStart/Xen4Networking7 -George

Hello All, I have a device that spews out experimental data as a series of text files each of which contains one column with several rows of numeric data. My problem is that for each trial it gives me one text file (and I run between 30 to 50 trials at a time) and I would ideally like to merge all these text files into one large data frame with each column representing a single trial. It is not

Hi all, I have a x, y matrix of numbers (usually ranging from 0 to 40). I need to group these numbers and assign a color to each group (for example 0 to 15 - Blue, 16-30- Yellow, and 31-40- Red). Then I need to draw a rectangular matrix which contains X x Y boxes and each box has the corresponding value from the input matrix and is also colored according to which group (i.e red, yellow,

Hey everyone The question that i am putting up will sound a bit odd as i am a newbie to asterisk. I have downloaded and install the asterisk and had a look at some of the configuration files like sip.conf, users.conf and extensions.conf. Now my question is that I want to do voip with another pc in LAN, what shall i have to do to implement this and i guess it will be possible without any hardware