- Devel - libvirt List Archives

[libvirt] vTPM support in libvirt
by Andreas Sommer 02 Jul '09

02 Jul '09

I'm wondering if there will be vTPM support in libvirt in the near future?! Xen does support it already with the configuration "vtpm = ['instance=1,backend=0']", for example. So it would be great if the libvirt XML format supported it, too... For example like this: <devices> <vtpm instance="1" backend="xxx" /> </devices> Both attributes are optional. The backend attribute is a VM ID (on Xen, only zero for dom0 is supported) and could be implemented as a UUID?! What do you think? Are there any efforts to introducing that? Cheers Andreas

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[libvirt] [Patch] Fix network driver not to forget to save <domain/> in network XML file
by Satoru SATOH 02 Jul '09

02 Jul '09

It seems that libvirt network driver can understand /network/domain element but it does not save this configuration into the network definition XML file correctly (looks completely forgetting about it). Here is a fix for this problem. (see also: rhbz#505720) --- src/network_conf.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/src/network_conf.c b/src/network_conf.c index 1e0cbb8..1b50b84 100644 --- a/src/network_conf.c +++ b/src/network_conf.c @@ -592,6 +592,9 @@ char *virNetworkDefFormat(virConnectPtr conn, def->stp ? "on" : "off", def->delay); + if (def->domain) + virBufferVSprintf(&buf, " <domain name='%s'/>\n", def->domain); + if (def->ipAddress || def->netmask) { virBufferAddLit(&buf, " <ip"); -- 1.6.3.2

3 2

[libvirt] [Patch] Network schema fixes and updates
by Satoru SATOH 02 Jul '09

02 Jul '09

This is a patch to make network schema (network.rng) to support some neat features (/netowrk/domain, //dhcp/host/*). --- docs/schemas/network.rng | 14 ++++++++++++++ 1 files changed, 14 insertions(+), 0 deletions(-) diff --git a/docs/schemas/network.rng b/docs/schemas/network.rng index 34c0163..a4281a5 100644 --- a/docs/schemas/network.rng +++ b/docs/schemas/network.rng @@ -1,6 +1,7 @@  <element name="network" xmlns="http://relaxng.org/ns/structure/1.0" datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes"> + <interleave>  <element name="name"><text/></element> @@ -43,6 +44,11 @@ </element> </optional> <optional> + <element name="domain"> + <attribute name="name"><text/></attribute> + </element> + </optional> + <optional>  <!-- FIXME: address, netmask and the start and end of the ranges @@ -63,7 +69,15 @@ <attribute name="end"><text/></attribute> </element> </zeroOrMore> + <zeroOrMore> + <element name="host"> + <attribute name="mac"><text/></attribute> + <attribute name="name"><text/></attribute> + <attribute name="ip"><text/></attribute> + </element> + </zeroOrMore> </element> </element> </optional> + </interleave> </element> -- 1.6.3.2

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[libvirt] [PATCH 0/1] Fix pool create when pool already exists
by David Allan 02 Jul '09

02 Jul '09

When storagePoolCreate is called to define a pool that already exists, it mistakenly destroys the existing pool. This patch fixes the problem. Dave

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[libvirt] Patch to include arm variants in virsh capabilities
by C.J. Adams-Collier 02 Jul '09

02 Jul '09

Hey folks, I got an android and wanted to set up an armel debian vm to test out some code. I had to launch it directly with qemu-system-arm, though, since virsh didn't have an arm option to select. This is a patch against the debian version of the source after applying debian-specific changes. If you'd like a patch against mainline, I'd be willing to do that. http://karma.colliertech.org/~cjac/tmp/add-arm.patch Cheers, C.J.

2 1

[libvirt] [PATCH] Fix node dumpxml infinite loop
by Cole Robinson 01 Jul '09

01 Jul '09

With current git, doing: 'virsh nodedev-dumpxml computer' locks up the daemon. The list iteration in update_caps was only happening conditionally: if that condition wasn't met, we loop forever. - Cole

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[libvirt] PATCH: Opennebula Documentation updates
by "Abel Míguez Rodríguez" 01 Jul '09

01 Jul '09

Hi, here are some changes to apply at the ONE Documentation, Thanks Abel Miguez Rodriguez ---- Distributed System Architecture Group (http://dsa-research.org) GridWay, http://www.gridway.org OpenNEbula, http://www.opennebula.org

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[libvirt] fix for crash in NPIV code
by Dave Allan 01 Jul '09

01 Jul '09

DV found a place in the NPIV code that was freeing the wrong thing in the error case causing a segfault. The patch to fix it follows. Dave diff --git a/src/node_device.c b/src/node_device.c index cd9f0ef..c5b839b 100644 --- a/src/node_device.c +++ b/src/node_device.c @@ -489,8 +489,8 @@ get_wwns(virConnectPtr conn, if (*wwnn == NULL || *wwpn == NULL) { /* Free the other one, if allocated... */ - VIR_FREE(wwnn); - VIR_FREE(wwpn); + VIR_FREE(*wwnn); + VIR_FREE(*wwpn); ret = -1; virReportOOMError(conn); }

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[libvirt] PATCH : Opennebula documentation
by "Abel Míguez Rodríguez" 01 Jul '09

01 Jul '09

Hi, Attached is the OpenNebula driver documentation and a patch. The main Documentation file is "drvone.html.in" along with it a patch that includes: the API supported by the driver, an entry at "Documentation>Drivers" and a link to the documentation at "drivers.hmtl.in" Thanks --- sitemap.html.in.bak 2009-07-01 12:43:53.000000000 +0200 +++ sitemap.html.in 2009-06-30 18:19:44.000000000 +0200 @@ -148,6 +148,10 @@ <a href="drvvbox.html">VirtualBox</a> Driver for VirtualBox </li> + <li> + <a href="drvone.html">OpenNebula</a> + Driver for OpenNebula + </li> </ul> </li> <li> --- drivers.html.in.bak 2009-07-01 14:54:57.000000000 +0200 +++ drivers.html.in 2009-07-01 14:55:33.000000000 +0200 @@ -23,6 +23,7 @@ <li><a href="drvtest.html">Test</a></li> <li><a href="drvopenvz.html">OpenVZ</a></li> <li><a href="drvvbox.html">VirtualBox</a></li> + <li><a href="drvone.html">OpenNebula</a></li> </ul> </body> </html> --- hvsupport.html.in.bak 2009-07-01 12:41:36.000000000 +0200 +++ hvsupport.html.in 2009-07-01 13:02:38.000000000 +0200 @@ -22,6 +22,7 @@ updated on 2008-06-05. <th><a href="drvkvm.html">KVM</a></th> <th><a href="remote.html">Remote</a></th> <th><a href="drvvbox.html">VirtualBox</a></th> + <th><a href="drvone.html">ONE</a></th> </tr> <tr> <td> virConnectClose </td> @@ -31,6 +32,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virConnectGetCapabilities </td> @@ -40,6 +42,7 @@ updated on 2008-06-05. <td> ≥ 0.2.1 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virConnectGetHostname </td> @@ -49,6 +52,7 @@ updated on 2008-06-05. <td> ≥ 0.3.3 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> x </td> </tr> <tr> <td> virConnectGetMaxVcpus </td> @@ -58,6 +62,7 @@ updated on 2008-06-05. <td> x </td> <td> ≥ 0.3.0 </td> <td> x </td> + <td> x </td> </tr> <tr> <td> virConnectGetType </td> @@ -67,6 +72,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virConnectGetURI </td> @@ -76,6 +82,7 @@ updated on 2008-06-05. <td> ≥ 0.3.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virConnectGetVersion </td> @@ -85,6 +92,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virConnectListDefinedDomains </td> @@ -94,6 +102,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virConnectListDomains </td> @@ -103,6 +112,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virConnectNumOfDefinedDomains </td> @@ -112,6 +122,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virConnectNumOfDomains </td> @@ -121,6 +132,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virConnectOpen </td> @@ -130,6 +142,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virConnectOpenAuth </td> @@ -139,6 +152,7 @@ updated on 2008-06-05. <td> </td> <td> </td> <td> </td> + <td> </td> </tr> <tr> <td> virConnectOpenReadOnly </td> @@ -148,6 +162,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> x </td> + <td> x </td> </tr> <tr> <td> virDomainAttachDevice </td> @@ -157,6 +172,7 @@ updated on 2008-06-05. <td> x </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> x </td> </tr> <tr> <td> virDomainBlockPeek </td> @@ -166,6 +182,7 @@ updated on 2008-06-05. <td> 0.4.3 </td> <td> x </td> <td> x </td> + <td> x </td> </tr> <tr> <td> virDomainBlockStats </td> @@ -175,6 +192,7 @@ updated on 2008-06-05. <td> x </td> <td> ≥ 0.3.2 </td> <td> x </td> + <td> x </td> </tr> <tr> <td> virDomainCoreDump </td> @@ -184,6 +202,7 @@ updated on 2008-06-05. <td> x </td> <td> ≥ 0.3.0 </td> <td> x </td> + <td> x </td> </tr> <tr> <td> virDomainCreate </td> @@ -193,6 +212,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virDomainCreateLinux </td> @@ -202,6 +222,7 @@ updated on 2008-06-05. <td> x </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virDomainDefineXML </td> @@ -211,6 +232,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virDomainDestroy </td> @@ -220,6 +242,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virDomainDetachDevice </td> @@ -229,6 +252,7 @@ updated on 2008-06-05. <td> x </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> x </td> </tr> <tr> <td> virDomainFree </td> @@ -238,6 +262,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virDomainGetAutostart </td> @@ -247,11 +272,12 @@ updated on 2008-06-05. <td> ≥ 0.2.1 </td> <td> ≥ 0.3.0 </td> <td> x </td> + <td> x </td> </tr> <tr> <td> virDomainGetConnect </td> <td> 0.3.0 </td> - <td colspan="5"> not a HV function </td> + <td colspan="6"> not a HV function </td> </tr> <tr> <td> virDomainGetID </td> @@ -261,6 +287,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virDomainGetInfo </td> @@ -270,6 +297,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virDomainGetMaxMemory </td> @@ -279,6 +307,7 @@ updated on 2008-06-05. <td> x </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> x </td> </tr> <tr> <td> virDomainGetMaxVcpus </td> @@ -288,6 +317,7 @@ updated on 2008-06-05. <td> x </td> <td> ≥ 0.3.0 </td> <td> x </td> + <td> x </td> </tr> <tr> <td> virDomainGetName </td> @@ -297,6 +327,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virDomainGetOSType </td> @@ -306,6 +337,7 @@ updated on 2008-06-05. <td> x </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virDomainGetSchedulerParameters </td> @@ -315,6 +347,7 @@ updated on 2008-06-05. <td> x </td> <td> ≥ 0.3.0 </td> <td> x </td> + <td> x </td> </tr> <tr> <td> virDomainGetSchedulerType </td> @@ -324,6 +357,7 @@ updated on 2008-06-05. <td> x </td> <td> ≥ 0.3.0 </td> <td> x </td> + <td> x </td> </tr> <tr> <td> virDomainGetUUID </td> @@ -333,6 +367,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virDomainGetUUIDString </td> @@ -342,6 +377,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virDomainGetVcpus </td> @@ -351,6 +387,7 @@ updated on 2008-06-05. <td> x </td> <td> ≥ 0.3.0 </td> <td> x </td> + <td> x </td> </tr> <tr> <td> virDomainInterfaceStats </td> @@ -360,6 +397,7 @@ updated on 2008-06-05. <td> x </td> <td> ≥ 0.3.2 </td> <td> x </td> + <td> x </td> </tr> <tr> <td> virDomainGetXMLDesc </td> @@ -369,6 +407,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> x </td> </tr> <tr> <td> virDomainLookupByID </td> @@ -378,6 +417,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virDomainLookupByName </td> @@ -387,6 +427,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virDomainLookupByUUID </td> @@ -396,6 +437,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virDomainLookupByUUIDString </td> @@ -405,6 +447,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virDomainMigrate </td> @@ -414,6 +457,7 @@ updated on 2008-06-05. <td> x </td> <td> 0.3.2 </td> <td> x </td> + <td> x </td> </tr> <tr> <td> virDomainPinVcpu </td> @@ -423,6 +467,7 @@ updated on 2008-06-05. <td> x </td> <td> ≥ 0.3.0 </td> <td> x </td> + <td> x </td> </tr> <tr> <td> virDomainReboot </td> @@ -432,6 +477,7 @@ updated on 2008-06-05. <td> x </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> x </td> </tr> <tr> <td> virDomainRestore </td> @@ -441,6 +487,8 @@ updated on 2008-06-05. <td> ≥ 0.3.2 </td> <td> ≥ 0.3.0 </td> <td> x </td> + <td> x </td> + </tr> <tr> <td> virDomainResume </td> @@ -450,6 +498,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virDomainSave </td> @@ -459,6 +508,7 @@ updated on 2008-06-05. <td> ≥ 0.3.2 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> x </td> </tr> <tr> <td> virDomainSetAutostart </td> @@ -468,6 +518,7 @@ updated on 2008-06-05. <td> ≥ 0.2.1 </td> <td> ≥ 0.3.0 </td> <td> x </td> + <td> x </td> </tr> <tr> <td> virDomainSetMaxMemory </td> @@ -476,6 +527,7 @@ updated on 2008-06-05. <td> x </td> <td> x </td> <td> ≥ 0.3.0 </td> + <td> x </td> </tr> <tr> <td> virDomainSetMemory </td> @@ -485,6 +537,7 @@ updated on 2008-06-05. <td> x </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> x </td> </tr> <tr> <td> virDomainSetSchedulerParameters </td> @@ -494,6 +547,7 @@ updated on 2008-06-05. <td> x </td> <td> ≥ 0.3.0 </td> <td> x </td> + <td> x </td> </tr> <tr> <td> virDomainSetVcpus </td> @@ -503,6 +557,7 @@ updated on 2008-06-05. <td> x </td> <td> ≥ 0.3.0 </td> <td> x </td> + <td> x </td> </tr> <tr> <td> virDomainShutdown </td> @@ -512,6 +567,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virDomainSuspend </td> @@ -521,6 +577,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virDomainUndefine </td> @@ -530,17 +587,18 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> ≥ 0.6.4 </td> </tr> <tr> <td> virGetVersion </td> <td> All </td> <td> All </td> - <td colspan="4"> Returns -1 if HV unsupported. </td> + <td colspan="5"> Returns -1 if HV unsupported. </td> </tr> <tr> <td> virInitialize </td> <td> 0.1.0 </td> - <td colspan="5"> not a HV function </td> + <td colspan="6"> not a HV function </td> </tr> <tr> <td> virDomainMemoryPeek </td> @@ -550,6 +608,7 @@ updated on 2008-06-05. <td> 0.4.3 </td> <td> x </td> <td> x </td> + <td> x </td> </tr> <tr> <td> virNodeGetInfo </td> @@ -559,6 +618,7 @@ updated on 2008-06-05. <td> ≥ 0.2.0 </td> <td> ≥ 0.3.0 </td> <td> ≥ 0.6.3 </td> + <td> x </td> </tr> <tr> <td> virNodeGetFreeMemory </td> @@ -568,6 +628,7 @@ updated on 2008-06-05. <td> x </td> <td> x </td> <td> x </td> + <td> x </td> </tr> <tr> <td> virNodeGetCellsFreeMemory </td> @@ -577,6 +638,7 @@ updated on 2008-06-05. <td> x </td> <td> x </td> <td> x </td> + <td> x </td> </tr> </table> <h3>Network functions</h3> Abel Miguez Rodriguez ---- Distributed System Architecture Group (http://dsa-research.org) GridWay, http://www.gridway.org OpenNEbula, http://www.opennebula.org

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[libvirt] libvirt 0.6.4: Confusing error message during virDomainRestore() if network not started
by Charles Duffy 01 Jul '09

01 Jul '09

Howdy, 'yall -- I found myself scratching my head for a few minutes trying to start a VM image via virDomainRestore(). Looking through the header definition in the XML, it read as follows: <interface type="network"> <mac address="00:15:3d:49:ec:0e"/> <source network="fvte-MIXED-DEFAULT"/> <target dev="vnet3"/> <model type="e1000"/> </interface> ...and on trying to do a virDomainRestore(), it exited with the following: Traceback (most recent call last): File "/usr/bin/fvte", line 8, in <module> load_entry_point('fvte==1.0', 'console_scripts', 'fvte')() File "/local/home-aux/cduffy/public_git/fvte/src/m1/fvte/cli.py", line 1838, in main cli.cmdloop() File "/opt/python25/lib/python2.5/cmd.py", line 142, in cmdloop stop = self.onecmd(line) File "/local/home-aux/cduffy/public_git/fvte/src/m1/fvte/cli.py", line 1791, in onecmd cmd.Cmd.onecmd(self, c) File "/opt/python25/lib/python2.5/cmd.py", line 219, in onecmd return func(arg) File "/local/home-aux/cduffy/public_git/fvte/src/m1/fvte/cli.py", line 1538, in do_mode self._vmm.vh_set_runmode(name, desired) File "/local/home-aux/cduffy/public_git/fvte/src/m1/fvte/vmmanip.py", line 324, in vh_set_runmode succp = (0 == virt['connect'].restore(ramfile)) File "/opt/python25/lib/python2.5/site-packages/libvirt.py", line 1224, in restore if ret == -1: raise libvirtError ('virDomainRestore() failed', conn=self) libvirt.libvirtError: internal error Failed to add tap interface 'vnet%d' to bridge 'fvtebr0' : No such device The actual issue was that the fvte-MIXED-DEFAULT network was not running, and an appropriate "virsh net-start" allowed the domain to restore correctly; detecting this condition and providing a clearer error message would probably be a Good Thing.

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