- openSUSE Virtual

[opensuse-virtual] Re: [opensuse-factory] [status report] openSUSE distribution, week 21
by Willem Meens 20 May '08

20 May '08

Hi Stephan, I have been trough those testing points mentioned when I saw it on as news item over at openSUSE.org. I have tested two or three in the list but I felt held back to test more and add comments feeling most points seem to require deeper knowledge (I not sure I have) or very specific scenarios. Although eager to help out I wouldn't really know if it's helping or slowing you guys down ;) My point being that maybe others potential testers share this feeling leaving you with low response... Just my 2cents, Willem On Tue, 2008-05-20 at 13:21 +0200, Stephan Kulow wrote: > Hi, > > Beta3 is tested pretty well, the number of bug reports we see > coming in gives a pretty good feeling of it's usage in real > life scenarios - some even read the most annoying bugs first :) > > What's missing is coordinated testing atm - so far only 12 of 207 > features are registered as tested, this is a pretty bad ratio. > > Right now I see 84 critical+blocker for 11.0 - many of them are > hardware specifics. > > I released factory snapshots of USB and CD images - the USB shows > just too many USB specific problems to be worthy, so I kind of decided > to kill this idea again ;( > > This week we'll do an internal beta3plus and have another public > holiday in Germany, so I think I'll upload new factory snapshots > tomorrow and leave you alone for the long weekend :) > > Greetings, Stephan > -- To unsubscribe, e-mail: opensuse-virtual+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-virtual+help(a)opensuse.org

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Re: [opensuse-virtual] Problems with Xen-installation resp. configuration
by gildo.rex＠gmx.de 19 May '08

19 May '08

Hi Andrew, > > Do I get this right, that I cannot install a paravirtualized guest from > the CD, but I can install a Xen-Server from the CD? > > > That may be the case (I'm not certain of the detailed > technicalities), but I do know that although I have performed 1-CD > installs and then installed the xen kernel, any installations of > virtual machines needed to be performed using the DVD media. The good > news is that it doesn't need to be burnt to disk first! It's fine to > just point the installer to the DVD ISO image saved somewhere on the > local filesystem. Your hint made my saturday!!! The installation worked and the VMs are performing well (better than VMware). Many thanks! I have got one more challenge to master: As I'm doing clustertest I'm installing the VMs on one host and test them on this host. The next step is to spread the VMs across to hosts. So I need to migrate on of the DomUs. With VMware I simply copied the VM to the other physical node and started it. I tried the same with the DomU and copied the configfile as well as the Diskfile. When I try to start the DomU on the other node, I get the error message: mpiphysicaltest2:~ # /usr/sbin/xm create /etc/xen/vm/test2 -c Using config file "/etc/xen/vm/test2". Error: (2, 'Invalid kernel', 'xc_dom_compat_check: guest type xen-3.0-x86_32 not supported by xen kernel, sorry\n') I checked the kernel via 'uname': stephan@mpiphysicaltest1:~> uname -a Linux mpiphysicaltest1 2.6.22.17-0.1-xen #1 SMP 2008/02/10 20:01:04 UTC i686 i686 i386 GNU/Linux stephan@mpiphysicaltest1:~> uname -r 2.6.22.17-0.1-xen stephan@mpiphysicaltest2:/usr/lib/xen/boot> uname -a Linux mpiphysicaltest2 2.6.22.17-0.1-xenpae #1 SMP 2008/02/10 20:01:04 UTC i686 i686 i386 GNU/Linux stephan@mpiphysicaltest2:/usr/lib/xen/boot> uname -r 2.6.22.17-0.1-xenpae On the second node (target node), the kernel seems to have a PAE-extension. Might that hinder the migration? I don't know where it derives from - I installed both kernel from the same CD from scratch... How can I harmonize this?? Kind Regards Stephan -- GMX startet ShortView.de. Hier findest Du Leute mit Deinen Interessen! Jetzt dabei sein: http://www.shortview.de/?mc=sv_ext_mf@gmx -- To unsubscribe, e-mail: opensuse-virtual+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-virtual+help(a)opensuse.org

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Re: [opensuse-virtual] Problems with Xen-installation resp.configuration
by gildo.rex＠gmx.de 19 May '08

19 May '08

Hi Jason, thanks for your exact explanations. > > There are two different 32-bit xen kernels shipped with openSUSE 10.3: > kernel-xen and kernel-xenpae. (Note that there are different hypervisor > versions that match these kernel versions as well [xen.gz and xen-pae.gz]). > These kernels mirror the kernel-smp and kernel-bigsmp that are typical in SuSE > distributions, and they are installed automatically based on the amount of > memory in your system (basically <= 2GB installs the kernel-xen; > 2G > installs the kernel-xenpae). The kernel within the guest* has to match the > flavor of the kernel that is running on the host (i.e. if you are running > -xenpae, your guest must be running -xenpae). Yes, you're right. I've checked that meanwhile, and I didn't get two absolutely identical machines. One has 4 GB, the other 2 GB... (trust only in what you did yourself) > > NOTE: I am only speaking of paravirtualized guests in this case. The > kernel in a fully virtualized guest does not need to match the "flavor" of the > hypervisor/dom0 kernel with the exception that you have to be running a > 64-bit xen in order to run any 64-bit guest. Ok, thats clear. But I want to run it paravirtualized. > > > How can I harmonize this?? > > > > There are a couple of different approaches that you can take here. One > option is to make both hosts run the same flavor of xen. Since there are > only a handful of processors newer than the Pentium Pro that do not have PAE > support, my recommendation would be to install the kernel-xenpae package > into your host that is currently running the -xen kernel. This will > automatically create a new entry in your grub menu that will load the right > hypervisor as well. > > However, if you choose this route, you will want to install the > kernel-xenpae kernel into all of your guests BEFORE you move to the xenpae kernel on > the host. Otherwise, your VM won't boot on either system and you'll have > to use some tricks to install the correct kernel in the vm (read "Requires > you to be somewhat of a Linux expert"). You'll also need to change your > config file to point at the -xenpae kernel, but I'll explain that in a moment. > The other option seems to be easier to me, so I'll omit the first one. > This leads me to the second option which is to install BOTH kernels in > your VM. That way, by changing a single line in your vm config file, you'll > be able to boot the VM on either machine without changing the hypervisor > that is currently running. The line that you'll need to change is the one > that references /boot/kernel-xen and /boot/initrd-xen (I believe it is the > bootargs line, but without looking at your config file, I can't be sure). Here's the config file of the VM: name="test2" ostype="opensuse" uuid="e8fa2bfb-54c9-440a-43fa-a58b361ce80e" memory=512 vcpus=1 on_crash="destroy" on_poweroff="destroy" on_reboot="restart" localtime=0 builder="linux" bootloader="/usr/lib/xen/boot/domUloader.py" bootargs="--entry=xvda2:/boot/vmlinuz-xen,/boot/initrd-xen" extra=" " disk=[ 'file:/var/lib/xen/images/mpichxentest2/disk0,xvda,w', ] vif=[ 'mac=00:16:3e:00:00:02', ] vfb=['type=vnc,vncunused=1'] So I have to change the line bootargs="--entry=xvda2:/boot/vmlinuz-xen,/boot/initrd-xen" to bootargs="--entry=xvda2:/boot/vmlinuz-xen-pae,/boot/initrd-xen-pae" ? > Once you have installed the kernel-xenpae package into the guest, you can copy > it to the PAE host and change those entries to -xenpae. Stupid question: How do I install that kernel? Via Yast on the original system? If I may summarize: I install both kernels in the VM. Via the bootargs-line in the config file, I can refer to one of the kernels. On the PAE-host, it refers to the PAE-kernel, on the non-PAE-host, it refers the non-PAE-kernel. So I could have a local version of the config file on each host, and just copy the diskfile, when I change the installation. Did I get it?? > If you have > problems with this, attach your vm config file and any error messages, and I'll > take a look. > > Have a lot of fun! > > Jason > > P.S. If you are interested in actual VM migration (movement of the VM > while it is still running), you'll need to have both hosts running the same > flavor of xen, and you'll need the VM disk to be accessible to both machines > in the exact same way (i.e. iscsi target, nfs mount, or other). But for > now, this should be plenty to get you started. Good luck! No, at the moment I only need cold migration for my work. I'll possibly get back to that lateron. Kind regards Stephan -- Psssst! Schon vom neuen GMX MultiMessenger gehört? Der kann`s mit allen: http://www.gmx.net/de/go/multimessenger -- To unsubscribe, e-mail: opensuse-virtual+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-virtual+help(a)opensuse.org

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Re: [opensuse-virtual] Problems with Xen-installation resp. configuration
by gildo.rex＠gmx.de 16 May '08

16 May '08

Hi Andrew, thanks for your answer! > I think that the problem you have encountered is that the single CD > of OpenSUSE 10.3 doesn't contain the paravirtualised kernel. Do I get this right, that I cannot install a paravirtualized guest from the CD, but I can install a Xen-Server from the CD? > > In my testing of Xen, I've got around this by using an ISO image of > the installation DVD, or (for a very convenient solution), I've set > up an installation server, which will allow you to use an HTTP > installation source for network installations. The instructions are > here: > http://en.opensuse.org/SDB:Installation_Server > (although I have used a SLES machine as installation server on my > network). > If you are using an installation source for Xen, you do not need to > use a mini installation CD (which would be needed to install on a > physical machine), you would just need to specify the network > installation source in the following format: > http://server_hostname_or_IP/install/10.3/CD1 > You would need to specify the appropriate hostname or IP address (of > course), and "install" is the directory alias that you specify during > the setup of the installation server. 10.3 is the source name of the > product, which you set up when loading the data from the ISO images - > don't forget the trailing /CD1 (it won't find the installation files > without it). > The only other thing to watch is that when creating an installation > source it will ask you to change CDs even if you have given it all > the files that it will need (perhaps from a DVD ISO image). When that > happens, just press cancel - the source will have been configured > successfully. > I hope that helps, Thanks for that detailed instruction, but as I am not am Linux-Expert and that installation is just the way to my actual aim, I'd like to keep it as simple as possible. If I got everything right, it would help, if I'd just use the DVD instead of the CD, right? Kind regards Stephan -- Der GMX SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! Ideal für Modem und ISDN: http://www.gmx.net/de/go/smartsurfer -- To unsubscribe, e-mail: opensuse-virtual+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-virtual+help(a)opensuse.org

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[opensuse-virtual] Problems with Xen-installation resp. configuration
by gildo.rex＠gmx.de 16 May '08

16 May '08

Hi all, I want to perform a performance test and compare physical and virtual platforms. To ensure comparability I want to install openSuSE 10.3 in the physical machines as well as in the VMware-VMs, in the Xen-DomUs and so on... I've installed Xen as package right from scratch with a fresh installation of openSuSE 10.3 on my computer system. I can boot the system into the Xen-Kernel Now I'm running into problems with setting up DomUs: I'm using the "Create Virtual Machine"-program, for the setup, which is installed along with the Xen-package. It asks for the config of the new VM resp. DomU. At "Operating System Installation" I'm asked to provide an installation source. Therefor I wanted ot use a local iso-image on the desktop. I used the same for installing VMware-VMs. Unfortunately I get teh error message: "installation source is unusable". The same when using the physical CD via the physical CD-ROM-drive. If I choose Full Virtualization instead of Paravirtualization, I get no error message. A VNC-window opens, which indicates, that a process is being started, but the process seems to stuck when loading the iso-image. I have 3 programs available in YaST2 under "Virtualization": 1.) Create Virtual Machines -> doesn't work, like explained. 2.) Install Hypervisor and Tools -> States, that the hypervisor and the tools are properly installed. 3.) Virtual Machine Manager -> Doesn't start and gives the following error message on console: xend [ERROR] Config file does not exist: /etc/xen/xend-config.sxp But that file exists. I've changed the permission, but the Virtual Machine Manager doesn't start nevertheless. Besides I recognize, that the physical hasn't got a NW-link after the booting the xen-kernel. Under "Network Settings" I see, that the normal device isn't connected. When leaving the NW-setting, the link works (although I didn't edit anything). The Xen-daemon is running, as I checked via sudo /etc/init.d/xend start Can anybody tell me whats wrong with my installation?? May there any configuration be missing. Do you have some hints, how I can troubleshoot that issue? I'm almost desperate!!! Thanks in advance and kind regards Stephan -- Der GMX SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! Ideal für Modem und ISDN: http://www.gmx.net/de/go/smartsurfer -- To unsubscribe, e-mail: opensuse-virtual+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-virtual+help(a)opensuse.org

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[opensuse-virtual] Xen DomU on LVM
by Wolfgang Rosenauer 07 May '08

07 May '08

Hi, This is on openSUSE 10.3: I'm trying to setup Xen guests on LVM logical volumes. What I want to achieve is: - better performance as with file based VBDs - easy resizing options for guest filesystems So my plan was to use LVs directly as partitions in the guest /dev/vg/lv1 -> /dev/hda1 /dev/vg/lv2 -> /dev/hda2 (or /dev/hdb1 FWIW) According to documentation I found, that should be possible but I wasn't able to get it to work. Probably the only issue is YaST anyway but I'm not sure and I actually want to be able to install within a DomU. Xen is always using the VBDs as whole disks so that /dev/hda1 ends up being a disk which needs a partition table and partition within DomU. While using one LV for the whole DomU disk would be possible it makes resizing much harder since DomU doesn't know about LVM so I can resize the "disk" but it's not really possible to resize the partitions within DomU. Any ideas? Wolfgang -- To unsubscribe, e-mail: opensuse-virtual+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-virtual+help(a)opensuse.org

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[opensuse-virtual] Fwd: [opensuse] Re: [Xen-users] Re: Drivers for Win2k3 domU
by Stephen Shaw 25 Apr '08

25 Apr '08

> > > I have a windows 2003 server that I converted from a vmware image to a > > domU. It works, but I have one PCI Device that is not being found. > > How did you do it? I've tried following this URL: > > http://ian.blenke.com/vmware/vmdk/xen/hvm/qemu/vmware_to_xen_hvm.html > > but so far no go, nothing on the console and VM reboots after 10 > seconds. > My basics steps are: 1) Import registy entries as in this doc: http://support.microsoft.com/kb/314082/ 2) vmware-vdiskmanager -r windows2003.vmdk -t 0 windows2003-flattened.vmdk 3) qemu-img convert windows-2003-flattened.vmdk windows2003.img 4) 2 and 3 I used a windows machine so then I ftp the img file to my xen server. 5) mount the img file and copy in hal.dll. Once in a while I can't modify the img file so I have to redo 3 and 4 6) then I use virt-manager to create a new domU and specify the img file for the hard disk. I've done three that have worked fine. Another one refuses to boot. It tries, but the processor utilization for that domU goes to 100% and it never loads. Really don't know why and I'm stuck on that one. Once I'm happy with it, I dd it to an lv. HTH, James -- To unsubscribe, e-mail: opensuse+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse+help(a)opensuse.org -- Some people are like slinkies. Not really good for anything but they bring a smile to your face when pushed down the stairs. -- To unsubscribe, e-mail: opensuse-virtual+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-virtual+help(a)opensuse.org

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[opensuse-virtual] mounted img file read-only.
by James Pifer 19 Apr '08

19 Apr '08

So I've been converting Windows VMWare VM's to xen domU's using this site as a guide: http://ian.blenke.com/vmware/vmdk/xen/hvm/qemu/vmware_to_xen_hvm.html. I even took a MS VM, converted to VMWare, then to a domU and it worked. I have one PCI Device that is not being found on all the machines I've done Q1) I assume since these are full virtualization that I need the drivers for the specific hardware? I also had my first failed conversion. It fails in the steps replacing the HAL version. When I mount the img file like: mount -o loop,offset=$((63*512)),rw server.img /mnt I can view the file system, but when I try to put the right HAL.dll in place I get: cp: cannot remove `/mnt/WINNT/system32/hal.dll': Read-only file system Q2) Any ideas why this file system is Read-only? This is the same procedure I've done on all my conversions. First 4 of them worked fine. Any help is appreciated. James -- To unsubscribe, e-mail: opensuse-virtual+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-virtual+help(a)opensuse.org

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[opensuse-virtual] xen irc channel
by Stephen Shaw 18 Apr '08

18 Apr '08

For those that are interested, there is a xen irc channel on irc.freenode.com/org/net #opensuse-xen #opensuse-virtual (just added) they are slow, but that doesn't mean someone won't see your question :) Stephen -- Some people are like slinkies. Not really good for anything but they bring a smile to your face when pushed down the stairs. -- To unsubscribe, e-mail: opensuse-virtual+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-virtual+help(a)opensuse.org

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[opensuse-virtual] So what's this group really for?
by Per Jessen 18 Apr '08

18 Apr '08

I noticed the creation of this group earlier today and signed up right away - I've been meaning to play around with xen and such for a while, but sofar I've only made it to vmware and virtualbox for playing a bit with Windows. What I sometimes think about is - do any of you guys use virtualisation in production, and if so, are you using hardware with suitable redundancy? I can't help thinking that a machine with a 20 virtual systems will take town 20 servers when it suffers a hardware problem? /Per Jessen, Zürich -- To unsubscribe, e-mail: opensuse-virtual+unsubscribe(a)opensuse.org For additional commands, e-mail: opensuse-virtual+help(a)opensuse.org

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