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[libvirt] libvir: Xen error : Domain not found: xenUnifiedDomainLookupByID
by mantra UNIX 27 Aug '08

27 Aug '08

Hi, After rebooting/shutdown/poweroff a domU any of the "virsh" commands display the above error message. Only way to get rid of it is via "reboot", this sucks ! I am using RHEL5.2 with all the updates applied. Whats the alternative ? -- Regards, mantra - Instrument of Thought

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RE: [libvirt] DISREGARD Problems starting XEN HVM with libvirt
by Matthew Donovan 26 Aug '08

26 Aug '08

It turns out everything was booting, they just weren't configured to give a console or display a GUI window. -matthew > -----Original Message----- > From: Matthew Donovan [mailto:matthew@atc-nycorp.com] > Sent: Tuesday, August 26, 2008 9:25 AM > To: libvir-list(a)redhat.com > Subject: [libvirt] Problems starting XEN HVM with libvirt > > I've been having trouble getting a Xen HVM guest started > using libvirt. > I've tried Windows Vista, Fedora Core 8, and Fedora Core 6 > guests. Domain 0 > is FC 8. The only guest that starts correctly is the FC 6 guest. Has > anyone else encountered something like this? Is there a > master list of > guest OS's that libvirt supports? > > Thanks > -matthew > > > CODE: > > #include <stdio.h> > #include <libvirt/libvirt.h> > #include <libvirt/virterror.h> > > > const char* foo = > "<domain type='xen'>" > "<name>fc6</name>" > "<os>" > "<type>hvm</type>" > "<loader>/usr/lib/xen/boot/hvmloader</loader>" > "<boot dev='hd'/>" > "</os>" > "<memory>512000</memory>" > "<vcpu>1</vcpu>" > "<on_shutdown>shutdown</on_shutdown>" > "<on_reboot>restart</on_reboot>" > "<on_crash>restart</on_crash>" > "<features>" > "<pae/>" > "<acpi/>" > "<apic/>" > "</features>" > "<clock sync='localtime'/>" > "<devices>" > "<emulator>/usr/lib/xen/bin/qemu-dm</emulator>" > "<disk type='block'>" > "<source dev='/dev/vgvms/fc6_test'/>" > "<target dev='hda'/>" > "</disk>" > "<interface type='ioemu'>" > "<mac address='7A:AB:D0:01:82:98'/>" > "</interface>" > "<input type='tablet' bus='usb'/>" > "<graphics type='sdl' password=''/>" > "<serial type='pty'/>" > "</devices>" > "</domain>"; > > > int main (int argc, char** argv) > { > virConnectPtr con; /* connection to the Xen hypervisor */ > virDomainPtr domain; > > virInitialize(); > > con = virConnectOpen ("xen:///"); > if (!con) { > virErrorPtr err = virGetLastError (); > printf ("virConnectOpen failed: %s\n", > err->message); > return -1; > } > > domain = virDomainDefineXML (con, foo); > if (!domain) { > virErrorPtr err = virConnGetLastError (con); > printf ("virDomainDefineXML failed: %s\n", > err->message); > > } else { > > if (virDomainCreate (domain) < 0) { > virErrorPtr err = virConnGetLastError (con); > printf ("virDomainCreate failed: %s\n", > err->message); > } else { > virDomainInfo info = {0}; > virDomainGetInfo (domain, &info); > printf ("state = %d\n", info.state); > getchar (); > } > } > > virConnectClose (con); > return 0; > } > > -- > Libvir-list mailing list > Libvir-list(a)redhat.com > https://www.redhat.com/mailman/listinfo/libvir-list >

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[libvirt] Problems starting XEN HVM with libvirt
by Matthew Donovan 26 Aug '08

26 Aug '08

I've been having trouble getting a Xen HVM guest started using libvirt. I've tried Windows Vista, Fedora Core 8, and Fedora Core 6 guests. Domain 0 is FC 8. The only guest that starts correctly is the FC 6 guest. Has anyone else encountered something like this? Is there a master list of guest OS's that libvirt supports? Thanks -matthew CODE: #include <stdio.h> #include <libvirt/libvirt.h> #include <libvirt/virterror.h> const char* foo = "<domain type='xen'>" "<name>fc6</name>" "<os>" "<type>hvm</type>" "<loader>/usr/lib/xen/boot/hvmloader</loader>" "<boot dev='hd'/>" "</os>" "<memory>512000</memory>" "<vcpu>1</vcpu>" "<on_shutdown>shutdown</on_shutdown>" "<on_reboot>restart</on_reboot>" "<on_crash>restart</on_crash>" "<features>" "<pae/>" "<acpi/>" "<apic/>" "</features>" "<clock sync='localtime'/>" "<devices>" "<emulator>/usr/lib/xen/bin/qemu-dm</emulator>" "<disk type='block'>" "<source dev='/dev/vgvms/fc6_test'/>" "<target dev='hda'/>" "</disk>" "<interface type='ioemu'>" "<mac address='7A:AB:D0:01:82:98'/>" "</interface>" "<input type='tablet' bus='usb'/>" "<graphics type='sdl' password=''/>" "<serial type='pty'/>" "</devices>" "</domain>"; int main (int argc, char** argv) { virConnectPtr con; /* connection to the Xen hypervisor */ virDomainPtr domain; virInitialize(); con = virConnectOpen ("xen:///"); if (!con) { virErrorPtr err = virGetLastError (); printf ("virConnectOpen failed: %s\n", err->message); return -1; } domain = virDomainDefineXML (con, foo); if (!domain) { virErrorPtr err = virConnGetLastError (con); printf ("virDomainDefineXML failed: %s\n", err->message); } else { if (virDomainCreate (domain) < 0) { virErrorPtr err = virConnGetLastError (con); printf ("virDomainCreate failed: %s\n", err->message); } else { virDomainInfo info = {0}; virDomainGetInfo (domain, &info); printf ("state = %d\n", info.state); getchar (); } } virConnectClose (con); return 0; }

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[libvirt] "static" ip address
by Olivier Deckmyn 26 Aug '08

26 Aug '08

Hi, I'm using KVM with the wonderful help of libvir (virsh), on a to-be-production-ready server of mine. I would like to be able to choose on a way or another the ip of each of my VM. As far as I can understand, the only way to get an IP (from a vm point of view) if the dhcp it. But I have no garantee vm1 will always get x.x.x.1 Ip adress... Is there a solution please ? (googling this list did'nt answer :() Thanx

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[libvirt] libvir: Xen error
by mantra UNIX 25 Aug '08

25 Aug '08

Hello everyone, I get the following error when i try to redtart a domain; # virsh list libvir: Xen error : Domain not found: xenUnifiedDomainLookupByID I am using RHEL5.2 on i386, I have searched for the error on web and on RedHat but could not find any. -- Regards, mantra - Instrument of Thought

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[libvirt] <bootloader /> BUG
by Stefan de Konink 25 Aug '08

25 Aug '08

With the tip of DanB I am currently using the inactive XML storage quite satisfied with the concept of first undefining than starting. But there is still a bug. The inactive XML adds a <bootloader /> tag. Now that is (in my perspective) not a bug, but it it is that libvirt expects a config. In my personal believes the tag shouldn't be there if there is no config; or libvirt should not libvir: Xen Daemon error : POST operation failed: xend_post: error from xen daemon: (xend.err 'Error creating domain: Had a bootloader specified, but no disks are bootable') error: Failed to create domain from /mnt/netapp/users/klant2/mono/index.xml I just checked with the last git version and the bug still exists... I hope someone can look into this asap. It is a blocker for development. Stefan

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[libvirt] inactive domain list in virsh
by Jun Koi 25 Aug '08

25 Aug '08

Hi, I am wondering if there is a way to list all the inactive domain inside virsh? That would be useful to have such a command, so we can see which domain can be started. Thanks, J

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[libvirt] ruby-libvirt bindings
by Donald Plummer 25 Aug '08

25 Aug '08

I'm trying to get the ruby-libvirt bindings working. I've installed them from the gem (ruby-libvirt-0.0.7.gem), but I'm having trouble. My setup is: Client: Debian Lenny, libvirt 0.4.4 compilied with Xen API 3.0.1 support Server: CentOS 5.2, libvirt 0.3.3 compilied with Xen API 3.0.1 (running Xen 3.1.0) The virsh command will connect from the client to the server using xen+ssh, but not the default TLS. The error I get when trying to use TLS is: dplummer@vps-manager:~$ virsh -c xen://lvh2/ libvir: Remote error : No route to host error: failed to connect to the hypervisor I've setup certs on both the client and the server, there are no firewalls between them, and I can ping between them just fine. Anyway, what I'm really trying to do is get the ruby bindings working, and since the xen+ssh virsh connection works, I'm trying that. But getting the error "socket closed unexpectedly". -------------------- dplummer@vps-manager:~$ irb irb(main):001:0> require 'libvirt' => true irb(main):002:0> system('virsh -c xen+ssh://root@lvh2/ version') Compiled against library: libvir 0.4.4 Using library: libvir 0.4.4 Using API: Xen 3.0.1 Running hypervisor: Xen 3.1.0 => true irb(main):003:0> conn = Libvirt::open('xen+ssh://root@lvh2/') libvir: Remote error : socket closed unexpectedly Libvirt::ConnectionError: Failed to open xen+ssh://root@lvh2 from (irb):3:in `open' from (irb):3 from :0 irb(main):004:0> -------------------- Anyone have any suggestions? Anyone get this to work? Thanks!

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[libvirt] [PATCH] Fix cd eject segfault
by Cole Robinson 23 Aug '08

23 Aug '08

The cdrom eject code was trying to dereference the NULL source of an empty cdrom. Attached patch fixes this. Thanks, Cole commit 5925689b5b94b29a520dcfbc7f4f1cfa0a0a0183 Author: Cole Robinson <crobinso(a)dhcp-100-19-219.bos.redhat.com> Date: Thu Aug 21 17:56:25 2008 -0400 Prevent cdrom eject from segfaulting when setting new disk source. diff --git a/src/qemu_driver.c b/src/qemu_driver.c index 06fbe55..769f34f 100644 --- a/src/qemu_driver.c +++ b/src/qemu_driver.c @@ -2953,6 +2953,7 @@ static int qemudDomainChangeCDROM(virDomainPtr dom, virDomainDiskDefPtr newdisk) { struct qemud_driver *driver = (struct qemud_driver *)dom->conn->privateData; char *cmd, *reply, *safe_path; + char *newsrc = NULL; if (newdisk->src) { safe_path = qemudEscapeMonitorArg(newdisk->src); @@ -2972,6 +2973,13 @@ static int qemudDomainChangeCDROM(virDomainPtr dom, } VIR_FREE(safe_path); + newsrc = strdup(newdisk->src); + if (!newsrc) { + qemudReportError(dom->conn, dom, NULL, VIR_ERR_OPERATION_FAILED, + "%s", _("out of memory")); + return -1; + } + } else if (asprintf(&cmd, "eject cdrom") == -1) { qemudReportError(dom->conn, dom, NULL, VIR_ERR_OPERATION_FAILED, "%s", _("out of memory")); @@ -2982,11 +2990,17 @@ static int qemudDomainChangeCDROM(virDomainPtr dom, qemudReportError(dom->conn, dom, NULL, VIR_ERR_OPERATION_FAILED, "%s", _("cannot change cdrom media")); VIR_FREE(cmd); + VIR_FREE(newsrc); return -1; } VIR_FREE(reply); VIR_FREE(cmd); - strcpy(olddisk->src, newdisk->src); + + VIR_FREE(olddisk->src); + if (newsrc) { + olddisk->src = newsrc; + newsrc = NULL; + } olddisk->type = newdisk->type; return 0; }

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[libvirt] [PATCH] Delete veth devices during lxcVMCleanup
by Dan Smith 22 Aug '08

22 Aug '08

This makes sure to delete veth devices after we've killed the container. In the case of a destroy or crash, this ensures the system is cleaned up properly. To be applied atop Daniel Berrange's current LXC patch stack. diff -r b18ae864eb98 -r cd0bd9a6288a src/lxc_driver.c --- a/src/lxc_driver.c Wed Aug 13 09:40:08 2008 -0700 +++ b/src/lxc_driver.c Thu Aug 14 08:50:49 2008 -0700 @@ -375,6 +375,7 @@ int rc = -1; int waitRc; int childStatus = -1; + virDomainNetDefPtr net; while (((waitRc = waitpid(vm->pid, &childStatus, 0)) == -1) && errno == EINTR) @@ -403,6 +404,11 @@ vm->pid = -1; vm->def->id = -1; vm->monitor = -1; + + for (net = vm->def->nets; net; net = net->next) { + vethInterfaceUpOrDown(net->ifname, 0); + vethDelete(net->ifname); + } return rc; }

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