November 2012 - openSUSE Virtual - openSUSE Mailing Lists

[opensuse-virtual] [Fwd: virtualisation: xen vs kvm]
by Hans Witvliet 10 Dec '12

10 Dec '12

As Per suggested, i'll try on this list as it is more on-topic. I grew up with XEN, so i rather stick with it (inertia ;-) but if it isn't maintained anymore, i'll ditch xen and start looking at LXC (for linux) and KVM (for non-linux). Hans ps1 no pending updates/reboot, rpm -qa reports: kernel-xen-3.4.11-2.16.1.x86_64 patterns-openSUSE-xen_server-12.2-5.5.1.x86_64 xen-4.2.0_03-210.8.x86_64 xen-doc-html-4.2.0_03-210.8.x86_64 xen-doc-pdf-4.2.0_03-210.8.x86_64 xen-kmp-desktop-4.2.0_03_k3.4.11_2.16-210.8.x86_64 xen-libs-4.2.0_03-210.8.x86_64 xen-tools-4.2.0_03-210.8.x86_64 -------- Forwarded Message -------- > From: Hans Witvliet <suse(a)a-domani.nl> > To: opensuse(a)opensuse.org > Subject: virtualisation: xen vs kvm > Date: Mon, 19 Nov 2012 21:54:42 +0100 > > hi all, > > afaicr there are several ways om virtualisation techniques available > under suse. What is currently advised for doing an virtual suse machine > on hardware running 12.2? XEN or KVM? > > Reason for asking is that it seems that xen-through yast doesn't work > anymore. I booted up the xen-kernel and tried to create a machine > through yast2-module. > -kept paravirtualized > -defined mem 1024 def./2048 max. > -iso-image, 10GB disk > -paravirt network adapter (fixed mac), on a proper working br0. > > after pressing OK, it just yields: > "unable to connect to libvirt with URI (none)" and > "No kernel was found. the installation may have failed." > > > tried: > - 64-bit in stead of 32-bit iso-image > - plain 10GB file instead of logical volume > - full instead of para > > The log in /var/log/xen/domain-builder-ng.log only says that > loader-probe fails because the kernel isn't a bzImage. > > Up till 11.4 i used to create xen-image on the fly this way. > Any suggestions? > > > Hans

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[opensuse-virtual] qemu-kvm question
by Michael Hill 07 Dec '12

07 Dec '12

I'm not sure if this is the right place to ask... I'm attempting to boot OSTree: https://live.gnome.org/OSTree/GnomeOSTree ...using the QEMU method. It works on Fedora using this command line: qemu-kvm -vga vmware -cpu core2duo -M pc-0.15 -kernel /boot/vmlinuz-$(uname -r) -initrd /boot/initramfs-ostree-$(uname -r).img -hda ostree-qemu.img -m 1024M -vga vmware -append 'rd.plymouth=0 root=/dev/sda ostree=current ' -monitor stdio I'd prefer to get it running on openSUSE so I can take it on my laptop. It fails with this error: (qemu) Could not initialize SDL(No available video device) - exiting Is there an easy way to diagnose this? Thanks, Mike -- To unsubscribe, e-mail: opensuse-virtual+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse-virtual+owner(a)opensuse.org

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[opensuse-virtual] Re: there's no (supported) 32-bit Xen on 12.1
by Per Jessen 28 Nov '12

28 Nov '12

Bit of an old follow-up: http://lists.opensuse.org/opensuse-virtual/2012-04/msg00006.html > Per Jessen wrote: >> Jan Beulich wrote: >>> On 30.04.12 at 13:21, Per Jessen <per@xxxxxxxxxxxx> wrote: >>> >>> I have two xen hosts - >>> >>> host1 is 32bit, 16Gb RAM, running 12.1+updates, kernel >>> >>> 3.1.9-1.4-xen. >> >> Hardly - there's no (supported) 32-bit Xen on 12.1. > > I guess I must have built it from source. I was just wondering, were there any particular reasons why we stopped building xen for i586? Afaict, we were still building for i586 in 11.4, but then stopped in 12.1. It also still builds and works just fine, support for x86-32pae is also explicitly mentioned in the source package. I am really _only_ being curious, I have no problems building it in my own project. thanks Per -- Per Jessen, Zürich (7.3°C) http://www.dns24.ch/ - free DNS hosting, made in Switzerland. -- To unsubscribe, e-mail: opensuse-virtual+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse-virtual+owner(a)opensuse.org

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[opensuse-virtual] KVM weirdness on laptop - Need opnions
by Tony Su 26 Nov '12

26 Nov '12

Hello, Am hoping to get experienced eyes on this to evaluate how much of what I'm seeing is expected and what is not. System: openSUSE 12.2 Desktop: KDE 4.8 Virtualization: QEMU-KVM Also using graphical virt-manager Hardware: Laptop with occasionally available WiFi - I have found that anything configured for bridged networking still requires a wired connection, usually binding to eth0. - I have found that when any real connection to a Network exists (wireless or wired), if a Host Only network does not exist, then the Guest will be automatically configured to use User Mode Networking <only when the NIC is created>. - When a physical connection does not exist for a Guest previously created using a NIC configured for User Mode Networking, User Mode Networking will fail with an error "service unavailable, port 5900" which likely means that a VNC connection cannot be made. - Curiously, even with no physical network connection, if a Host Only network is created and a second virtual network for the new Host Only network is added to the Guest described previously, the Guest VM will boot up (no service unavailable, port 5900 error) and can even be viewed using virt-viewer. But, on closer inspection running ifconfig in the Guest reveals only one working NIC configured with an IP address for the User Mode Network while running ifconfig on the Host reveals that only the Host Only network is running and available. So, of course, Host and Guest cannot -- To unsubscribe, e-mail: opensuse-virtual+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse-virtual+owner(a)opensuse.org

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[opensuse-virtual] KVM weirdness on laptop - Need opnions
by Tony Su 26 Nov '12

26 Nov '12

Hello, Am hoping to get experienced eyes on this to evaluate how much of what I'm seeing is expected and what is not. System: openSUSE 12.2 Desktop: KDE 4.8 Virtualization: QEMU-KVM Also using graphical virt-manager Hardware: Laptop with occasionally available WiFi - I have found that anything configured for bridged networking still requires a wired connection, usually binding to eth0. - I have found that when any real connection to a Network exists (wireless or wired), if a Host Only network does not exist, then the Guest will be automatically configured to use User Mode Networking <only when the NIC is created>. - When a physical connection does not exist for a Guest previously created using a NIC configured for User Mode Networking, User Mode Networking will fail with an error "service unavailable, port 5900" which likely means that a VNC connection cannot be made. - Curiously, even with no physical network connection, if a Host Only network is created and a second virtual network for the new Host Only network is added to the Guest described previously, the Guest VM will boot up (no service unavailable, port 5900 error) and can even be viewed using virt-viewer. But, on closer inspection running ifconfig in the Guest reveals only one working NIC configured with an IP address for the User Mode Network while running ifconfig on the Host reveals that only the Host Only network is running and available. So, of course, Host and Guest cannot communicate using TCP/IP with each other except using virt-viewer (should not work?). - Have not tried, but am considering the idea of configuring the Host Only network to share the same networkID as the User Mode Network (10.0.2.0/24) but make sure the DHCP ranges are different. Theoretically I think this workaround might work but shouldn't be required. TIA, Tony -- To unsubscribe, e-mail: opensuse-virtual+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse-virtual+owner(a)opensuse.org

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