- Users - libvirt List Archives

[libvirt-users] can't add cpu's to virtual guest
by David M. Barlieb 06 Mar '12

06 Mar '12

I have a rhel6.0 server running kvm. I have recently needed to add additional cpu's to some of the guests but cannot do it via virt-manager, can't doit using virt, and can't do it by vi the guest.xml file. Is this a bug or am I missing something? Thanks, DaveB

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[libvirt-users] [help] how can I use libvirt to get cpu usage ratio ?
by hujun_hotmail 06 Mar '12

06 Mar '12

hi experts: I am a freshman of libvirt, I have got a domU's info like: libvirt.open, lookupByID, info. But now I want to use libvirt to get a xen domU 's cpu usage ratio , how can I fulfill it ? I cannot find the API.

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[libvirt-users] vm bridge network is down after reboot on guest machine ..
by Nitin kumar 06 Mar '12

06 Mar '12

Hi all , We have one virtual guest when reboot the virtual guest network port not comming up automatically ... any seeting to enable it ... -- With Best Regards, Nitin Kumar Sr. System Engineer-Unix (CSC India Pvt. Ltd, Noida ) +91-9999706444

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[libvirt-users] Booting virtual machines automatically
by Daniel Gonzalez 06 Mar '12

06 Mar '12

Hello, I am managing several virtual machines (a predefined set) with virsh, and I would like to make sure that all VMs are booted when the host reboots. What is the recommended approach for this? Thanks, Daniel Gonzalez

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[libvirt-users] PCI-X card controlled by VM
by Daniel Gonzalez 06 Mar '12

06 Mar '12

Hi all, I have a PCI-X card which I would like to assign to one of my VM guests. Is there any way, using libvirt, of completely bypassing the host system, and routing all PCI-X interaction (drivers, interrupts, general ownership) to one of the VMs? Thanks, Daniel Gonzalez

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[libvirt-users] Qemu restore error.
by Sharad Mishra 05 Mar '12

05 Mar '12

Eric, I have a RHEL6.0 machine running libvirt 0.8.7-18. I am running into issue mentioned in one of the previous posting. https://www.redhat.com/archives/libvirt-users/2011-December/msg00059.html # virsh start <domain> error: Failed to start domain <domain> error: operation failed: failed to read qemu header # od -N 128 -tx1z /path/to/domain.save 0000000 The workaroud to run --force-boot does not work on 0.8. Is a fix available for this issue? -Sharad Mishra

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[libvirt-users] qemu - could not load kernel and dynamic ownership setting
by Shantanu Pavgi 05 Mar '12

05 Mar '12

Hi, I am getting following 'qemu: could not load kernel' error while trying to create a new VM using virt-install or virt-manager. The software versions are as follows: CentOS 6.2, Libvirt 0.9.4, qemu-kvm 2:0.12.1.2-2.209.el6_2.1. The qemu.conf has disabled dynamic_ownership setting. The VM instantiation has worked fine before when dynamic_ownership was enabled (default). So is this error related to dynamic ownership being disabled? I appreciate any help on how to debug this error further. Also, is there any documentation on why/when dynamic_ownership setting should be used? We have enabled it to figure this out through some test installs but right now unable to move further with the install step itself. {{{ virt-install --connect qemu:///system \ -n $guestname \ -r 512 \ --vcpus=1 \ --os-type=linux \ --os-variant=rhel6 \ --accelerate \ --graphics vnc,keymap=en-us \ -v \ -w bridge:br1 \ --disk path=$datastore/$guestname.img,size=40 \ -l $repo \ -x "ks=$ksurl/$ksfile ksdevice=eth0 ip=$guestip netmask=$netmask nameserver=$nameserver gateway=$gw" }}} {{{ Starting install... Retrieving file .treeinfo... | 798 B 00:00 ... Retrieving file vmlinuz... | 7.5 MB 00:00 ... Retrieving file initrd.img... | 59 MB 00:01 ... Allocating 'virtinst-vmlinuz.l4mEAd' | 3.8 MB 00:00 Transferring virtinst-vmlinuz.l4mEAd | 3.8 MB 00:00 Allocating 'virtinst-initrd.img.IvGhFr' | 29 MB 00:00 Transferring virtinst-initrd.img.IvGhFr | 29 MB 00:05 Creating storage file generic-server.img | 40 GB 00:00 ERROR internal error process exited while connecting to monitor: char device redirected to /dev/pts/1 qemu: could not load kernel '/var/lib/libvirt/boot/virtinst-vmlinuz.l4mEAd': Permission denied Domain installation does not appear to have been successful. }}} -- Thanks, Shantanu

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[libvirt-users] About suspend VM
by Александр Семенов 05 Mar '12

05 Mar '12

Hello. I want to disable function suspend and saving in libvirt. How can i do it? -- ------------ С уважением, Семенов А.С. тел. 8-9269150661

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Re: [libvirt-users] Unable to connect qemu:///system on CentOS 6.2 X86_64
by Michał Kulling | IQ.pl 05 Mar '12

05 Mar '12

Try one more time and paste /var/log/message (tail -100 /var/log/message) and /var/log/secure (tail -40 /var/log/secure) to pastebin.com and send link. On Mon, 5 Mar 2012 22:16:15 +0800, suyi wang <wangsuyi640(a)gmail.com> wrote: > I just tried it , but... :( > > 2012/3/5 Michał Kulling | IQ.pl > On Mon, 5 Mar 2012 20:50:29 +0800, suyi wang > wrote: > >> Dear all: > > I ust installed Fedora16Fedora16 X86_64 on my new machine, > and > > then I ran the commands as follows(ran as root): > > > > yum install qemu-kvm > > yum install qemu > > yum install libvirt > > yum install virt-manager > > > > then I started the libvirtd as follow: > > /etc/init.d/lbvirtd start > > > > So , it ran well. > > > > However, after a few days , when I ran the command "virt-manager" > , > > it showed as in the attachment. > > > > it seemed that ti cannot connect the hipervisor. > > > > Then I did a little test: > > I ran the conmand "virsh list" , but it didnot work,either. > > > > Then I used Python as follows: > > import libvirt > > cc = libvirt.open(r'qemu:///system' > > ) > > > > but it didnot work,either. > > > > All the test above are under root . I hope that someone can give > me > > some suggestiion. Thanks to all! > > Try: > > # service qemu-kvm restart > # service libvirtd restart > > :-) > > -- > > Michał Kulling > http://iq.pl/ [3] > > > > Links: > ------ > [1] mailto:mkulling@iq.pl > [2] mailto:wangsuyi640@gmail.com > [3] http://iq.pl/ -- Michał Kulling http://iq.pl/

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[libvirt-users] Unable to connect qemu:///system on CentOS 6.2 X86_64
by suyi wang 05 Mar '12

05 Mar '12

Dear all: I ust installed Fedora16Fedora16 X86_64 on my new machine, and then I ran the commands as follows(ran as root): yum install qemu-kvm yum install qemu yum install libvirt yum install virt-manager then I started the libvirtd as follow: /etc/init.d/lbvirtd start So , it ran well. However, after a few days , when I ran the command "virt-manager" , it showed as in the attachment. it seemed that ti cannot connect the hipervisor. Then I did a little test: I ran the conmand "virsh list" , but it didnot work,either. Then I used Python as follows: import libvirt cc = libvirt.open(r'qemu:///system' ) but it didnot work,either. All the test above are under root . I hope that someone can give me some suggestiion. Thanks to all!

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