March 2012 - virt - Fedora Mailing-Lists

Bridged Networking - Virtual Environments

by Jorge Fábregas

Hello everyone, I'm learning about bridged networking and how it is applied to virtual environments (bypassing all the automation provided by libvirtd etc) . I have a question regarding ip configuration for the virtual bridge. Let's say I have a host (my machine) where I want to run 3 VMs bridged to my home network (thru eth0). I have a DHCP server running on my DSL router, and I have dhcp enabled on my 3 VMs so they all should get a lease from the DHCP. As far as a I know these are the raw steps needed to accomplish this: 1- create br0 2- remove current ip address from eth0 3- enslave eth0 to br0 4- create tap devices 5- attach tap devices to br0 6- assign tap devices to every VM As you can see I haven't assigned an ip address to the virtual bridge (br0). Why is it that (on almost any site that I visit with this setup) they always end up assigning an ip address to br0? Thanks in advance! Jorge

11 years, 8 months

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Log filling with bogus(?) VLAN-related error message

by Ian Pilcher

My syslog is getting flooded with messages like this: Nov 19 15:27:16 ian libvirtd: 15:27:16.949: 2725: error : virInterfaceDefParseXML:807 : XML description for vlan interface misses the vlan element is not well formed or invalid I do have tagged VLAN interfaces on the host (br0.1, br0.4, and br0.251), but none of my VMs are using them. I am not using any libvirt-managed networks at all: [pilcher@ian ~]$ sudo virsh net-list --all Name State Autostart ----------------------------------------- default inactive no I am running libvirt-0.8.8-7.fc15.x86_64. Any ideas? Thanks! -- ======================================================================== Ian Pilcher arequipeno(a)gmail.com "If you're going to shift my paradigm ... at least buy me dinner first." ========================================================================

11 years, 11 months

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FYI: iPXE in Fedora 17

by Daniel P. Berrange

FYI, as of this morning, both Fedora rawhide and Fedora 17 now have QEMU using iPXE. https://admin.fedoraproject.org/updates/FEDORA-2012-4242/ Please try them out with yum --enablerepo=updates-testing update qemu and check PXE boot is working sensibly for you, and that gpxe-roms-qemu gets removed automagically & replaced by ipxe-roms-qemu. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|

12 years

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sudo virt-install VNC: Unable to read from monitor

by Mihamina Rakotomandimby

Hi, I'm running Fedora 16 and would like to install a KVM VM. On my preious Ubuntu system I used to install such a VM with: $ sudo virt-install [...] --vnc [...] (I'm a sudo fan, not guru) On my F16, running the same command gives me: Starting install... ERROR Unable to read from monitor: Connection reset by peer Domain installation does not appear to have been successful. This, IMHO, is due to the --vnc option trying to open a X11 window. But, if I "sudo -s" then run the same command, the installation goes on, with the X11 VNC window appearing. My system is a F16 XFCE spin, where I disabled SELinux. Would you know how to launch "sudo virt-install [..] --vnc [...]" as a bare user (without escalading with "sudo -s")? On the other hand, "sudo virsh [...] list --all" (which doesn't need VNC X11) works very well. Thank you. -- RMA.

12 years

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[qemu RPM PATCH] use --with variables for build-time settings

by Eduardo Habkost

This keeps the Fedora and RHEL defaults as-is, but makes the spec code clearer. I would like to get some review before committing this to the fedpkg repository. Signed-off-by: Eduardo Habkost <ehabkost(a)redhat.com> --- qemu.spec | 66 +++++++++++++++++++++++++++++++++++++++++++++++------------- 1 files changed, 51 insertions(+), 15 deletions(-) diff --git a/qemu.spec b/qemu.spec index 7ab15d7..e711e72 100644 --- a/qemu.spec +++ b/qemu.spec @@ -1,3 +1,39 @@ +# build-time settings that support --with or --without: +# +# = x86only = +# Build only x86 Qemu targets. +# +# Disabled by default. +# +# = exclusive_x86_64 = +# ExclusiveArch: x86_64 +# +# Disabled by default, except on RHEL. +# +# = rbd = +# Enable rbd support. +# +# Enable by default, except on RHEL. +# +# = fdt = +# Enable fdt support. +# +# Enabled by default, except on RHEL. + + +%if 0%{?rhel} +# RHEL-specific defaults: +%bcond_without exclusive_x86_64 +%bcond_with rbd +%bcond_with fdt +%else +# General defaults: +%bcond_without exclusive_x86_64 +%bcond_without rbd +%bcond_without fdt +%endif + + Summary: QEMU is a FAST! processor emulator Name: qemu Version: 1.0 @@ -8,14 +44,10 @@ License: GPLv2+ and LGPLv2+ and BSD Group: Development/Tools URL: http://www.qemu.org/ # RHEL will build Qemu only on x86_64: -%if 0%{?rhel} +%if %{with exclusive_x86_64} ExclusiveArch: x86_64 %endif -# Allow one off builds to be minimalized without foreign -# architecture support (--with x86only): -%define with_x86only %{?_with_x86only: 1} %{?!_with_x86only: 0} - # OOM killer breaks builds with parallel make on s390(x) %ifarch s390 s390x %define _smp_mflags %{nil} @@ -137,7 +169,7 @@ BuildRequires: spice-server-devel >= 0.9.0 %endif # For network block driver BuildRequires: libcurl-devel -%if !0%{?rhel} +%if %{with rbd} # For rbd block driver BuildRequires: ceph-devel %endif @@ -158,7 +190,7 @@ BuildRequires: libuuid-devel BuildRequires: bluez-libs-devel # For Braille device support BuildRequires: brlapi-devel -%if !0%{?rhel} +%if %{with fdt} # For FDT device tree support BuildRequires: libfdt-devel %endif @@ -303,7 +335,7 @@ This package provides the system emulator for x86. When being run in a x86 machine that supports it, this package also provides the KVM virtualization platform. -%if !%{with_x86only} +%if %{without x86only} %package system-arm Summary: QEMU system emulator for arm Group: Development/Tools @@ -445,7 +477,7 @@ such as kvm_stat. %build # By default we build everything, but allow x86 to build a minimal version # with only similar arch target support -%if %{with_x86only} +%if %{with x86only} buildarch="i386-softmmu x86_64-softmmu i386-linux-user x86_64-linux-user" %else buildarch="i386-softmmu x86_64-softmmu arm-softmmu cris-softmmu m68k-softmmu \ @@ -479,8 +511,10 @@ sed -i.debug 's/"-g $CFLAGS"/"$CFLAGS"/g' configure --extra-ldflags="$extraldflags -pie -Wl,-z,relro -Wl,-z,now" \ --extra-cflags="%{optflags} -fPIE -DPIE" \ --enable-spice \ -%if 0%{?rhel} +%if %{without rbd} --disable-rbd \ +%endif +%if %{without fdt} --disable-fdt \ %endif --enable-trace-backend=dtrace \ @@ -515,8 +549,10 @@ make clean %ifarch %{ix86} x86_64 --enable-spice \ %endif -%if 0%{?rhel} +%if %{without rbd} --disable-rbd \ +%endif +%if %{without fdt} --disable-fdt \ %endif --enable-trace-backend=dtrace \ @@ -613,7 +649,7 @@ for i in dummy \ %ifnarch %{ix86} x86_64 qemu-i386 \ %endif -%if !%{with_x86only} +%if %{without x86only} %ifnarch arm qemu-arm \ %endif @@ -726,7 +762,7 @@ fi %{_exec_prefix}/lib/binfmt.d/qemu-*.conf %{_bindir}/qemu-i386 %{_bindir}/qemu-x86_64 -%if !%{with_x86only} +%if %{without x86only} %{_bindir}/qemu-alpha %{_bindir}/qemu-arm %{_bindir}/qemu-armeb @@ -739,7 +775,7 @@ fi %endif %{_datadir}/systemtap/tapset/qemu-i386.stp %{_datadir}/systemtap/tapset/qemu-x86_64.stp -%if !%{with_x86only} +%if %{without x86only} %{_datadir}/systemtap/tapset/qemu-alpha.stp %{_datadir}/systemtap/tapset/qemu-arm.stp %{_datadir}/systemtap/tapset/qemu-armeb.stp @@ -788,7 +824,7 @@ fi %{_bindir}/kvm_stat %endif -%if !%{with_x86only} +%if %{without x86only} %files system-arm %defattr(-,root,root) -- 1.7.3.2

12 years

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No keyboard with Spice/qxl...

by Georgios Petasis

Hi all, I am facing a problem with Spice: if I enable spice as the display model, everything works (display, mouse), but the keyboard does not work. If I use VNC as the model, the keyboard works, but the display has a slow refresh rate. Any ideas on what it may be wrong? Running fedora 16, will updates installed. Regards, George

12 years

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Migrating a WinXP guest to F16

by Andrés García

Hi, I have been trying to migrate a WinXP to a new F16 install, from an old F12 machine but I have the problem that networking doesn't work. The guest sees the network card and I can ping it from the guest itself but it has no access to the external network through the bridge. Other virtual machines, both Fedora and Win7, created in the F16 box do work. I tried deleting the network card in the guest and creating a new one but the same thing happens. Any ideas? Thanks, Andres García

12 years, 1 month

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How to check image for Bad sectors?

by Frank Murphy

When checking if bad sectors, are the cause of guest problems. Do you run badblocks -sv /dev/*da from the host, or should the guest be booted, and badblocks -sv /dev/vda -- Regards, Frank "Jack of all, fubars"

12 years, 1 month

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Rebélate by self-management, first project of free software by which we bet all / Rebélate por la autogestión, primer proyecto de software libre por el que apostamos todas

by Orquidea Salt mas

Inglés : Many already we have contributed to the first project of free software dedicated to self-management in this campaign of collective financing, it collaborates and it spreads!/ Beginning campaign collective financing http://www.goteo.org/project/rebelaos-publicacion-por-la-autogestion?lang=en Login to enter with user of social networks and for would register in Goteo : http://www.goteo.org/user/login?lang=en Rebelaos! Publication by self-management A massive publication that floods the public transport, the work centers, the parks, the consumption centers, by means of distribution of 500,000 gratuitous units, acting simultaneously in all sides and nowhere. We announce the main tool of a vestibule Web for the management of self-sustaining resources by means of Drupal, in addition in the publication there will be an article dedicated to free software, hardware, It is being prepared in inglès, the machinery You can see more details in the index of the publication https://n-1.cc/pg/file/read/1151902/indexresumen-de-los-contenidos-pdf . A computer system that allows us to share resources in all the scopes of our life so that we do not have to generate means different for each subject nor for each territory. A point of contact digitalis to generate projects of life outside Capitalism and to margin of the State. A tool to spread and to impel the social transformation through the resources that will set out in their contents around self-management, the autoorganización, the disobedience and the collective action. In which the capitalist system goes to the collapse, in a while immersed in a deep systemic crisis (ecological, political and economic, but mainly of values), where individual and collective of people they are being lacking of his fundamental rights, is necessary to develop a horizontal collective process where all the human beings we pruned to interact in equality of conditions and freedom. To interact means to relate to us (as much human as economically), to communicate to us, to cover our basic needs, to generate and to protect communal properties, to know and to provide collective solutions us problematic that our lives interfere. We want abrir a breach within normality in the monotonous life state-capitalist, a day anyone, that finally will not be any day. By means of this publication we try: - To drive a horizontal collective process where all and all we pruned to interact in equality of conditions and freedom. - To create communications network between the people it jeopardize with the change and arranged to act. - To find collective solutions to problematic that our lives interfere - To facilitate the access to resources that make possible self-management. - To participate in the construction of networks of mutual support, generated horizontals, asamblearias and from the base. - To publish all this information in an attractive format stops to facilitate the access to all the society. There are 15 days remaining for the upcoming March 15, the day that will come Rebelaos!, Magazine for the selfmanagement Today, we issue the cover of Rebelaos! (Castilian version) that can be displayed on the following link: https://n-1.cc/pg/file/read/1200503/portada-15-de-marzo-rebelaos The contents of the store owners to us by 15 March. Do you? Do you keep on 15 March? In addition, we have over 200 distribution nodes, distributed throughout the Spanish state. Check the map: https://afinidadrebelde.crowdmap.com/ On the other hand, the funding campaign continues to move and still have 12 days to collect the remaining 6,000 euros. We can all make a bit for all the grains of sand become a great beach on March 15. You can access the co-financing campaign: http://www.goteo.org/project/rebelaos-publicacion-por-la-autogestion Rebel Affinity group www.rebelaos.net ------------------------------------------------------------------------------- Castellano: Muchos ya hemos aportado al primer proyecto de software libre dedicado a la la financiación colectiva, colabora y diffunde !!!!! Inicio campaña financiación colectiva goteo.org www.goteo.org/project/rebelaos-publicacion-por-la-autogestion Link para registrarse en Goteo y acceder a redes sociales para colaborar en la difusín http://www.goteo.org/user/login ¡Rebelaos! Publicación por la autogestión Una publicación masiva que inunde el transporte público, los centros de trabajo, los parques, los centros de consumo, mediante la distribución de 500.000 ejemplares gratuitos, actuando simultáneamente en todos lados y en ninguna parte. Anunciamos la herramienta principal de un portal web para la gestión de recursos autogestionados mediante Drupal, además en la publicación habrá un artículo dedicado al software libre, el hardware, la maquinaria... Puedes ver más detalles en el índice de la publicación https://n-1.cc/pg/file/read/1151902/indexresumen-de-los-contenidos-pdf Un sistema infórmatico que nos permita compartir recursos en todos los ámbitos de nuestra vida de forma que no tengamos que generar un medio distinto para cada tema ni para cada territorio. Un punto de encuentro digital para generar proyectos de vida fuera del capitalismo y al margen del Estado. Una herramienta para difundir e impulsar la transformación social a través de los recursos que se propondrán en sus contenidos en torno a la autogestión, la autoorganización, la desobediencia y la acción colectiva. En un momento en que el sistema capitalista se dirige al colapso, inmerso en una profunda crisis sistémica (ecológica, política y económica, pero principalmente de valores), donde individuos y colectivos de personas están siendo desprovistos de sus derechos fundamentales, es necesario desarrollar un proceso colectivo horizontal donde todos los seres humanos podamos interactuar en igualdad de condiciones y en libertad. Interactuar significa relacionarnos (tanto humana como económicamente), comunicarnos, cubrir nuestras necesidades básicas, generar y proteger bienes comunes, conocernos y dar soluciones colectivas a problemáticas que interfieren nuestras vidas. Queremos abrir una brecha dentro de la normalidad en la monótona vida estatal-capitalista, un día cualquiera, que finalmente no será cualquier día. Mediante esta publicación pretendemos: - Impulsar un proceso colectivo horizontal donde todos y todas podamos interactuar en igualdad de condiciones y en libertad. - Crear red de comunicaciones entre las personas comprometidas con el cambio y dispuestas a actuar. - Encontrar soluciones colectivas a problemáticas que interfieren nuestras vidas. - Facilitar el acceso a recursos que posibiliten la autogestión. - Participar en la construcción de redes de apoyo mutuo, horizontales, asamblearias y generadas desde la base. - Publicar toda esta información en un formato atractivo para facilitar el acceso a toda la sociedad. Son 15 los días que restan para el próximo 15 de marzo, día en el que verá la luz ¡Rebelaos!, publicación por la autogestión. Hoy, hacemos pública la portada de ¡Rebelaos! (versión en castellano) que podéis visualizar en el siguiente enlace: https://n-1.cc/pg/file/read/1200503/portada-15-de-marzo-rebelaos El contenido de los titulares nos los guardamos para el 15 de marzo. ¿Y tú? ¿Te guardas el 15 de marzo? Además, ya hemos superado los 200 nodos de distribución, repartidos por todo el estado español. Ver el mapa: https://afinidadrebelde.crowdmap.com/ Por otro lado, la campaña de financiación continúa avanzando y todavía quedan 12 días para reunir los 6.000 euros que restan. Todas podemos aportar un poco para que todos los granitos de arena se conviertan en una gran playa el 15 de marzo. Podéis acceder a la campaña de cofinanciación en: http://www.goteo.org/project/rebelaos-publicacion-por-la-autogestion Colectivo Afinidad Rebelde www.rebelaos.net

12 years, 1 month

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virt March 2012