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[libvirt-users] Using a Windows partition as libvirt media
by Roland Giesler 19 Jun '13

19 Jun '13

I'm running Ubuntu desktop 12.10 with libvirt and virt-manager (gui). I have been led to believe that it is possible to use and existing partition as the disk storage volume for a virtual machine. The windows partition is /dev/sda2, but if I use fs: Pre-formatted Block Device I can select the partion. What I can't figure out is how to tell the vitual machine to use this volume. I tried with virt-manager, but the only options I have are * Local media * Network install * Network Boot * Import Existing Disk Image How can I do this? regards Roland Giesler

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[libvirt-users] Unable to setup qemu-guest-agent
by Nehal J. Wani 17 Jun '13

17 Jun '13

Could anyone please list out the steps required to run the command $virsh qemu-agent-command Steps that I followed: 1. Clone the latest source code of libvirt 2. Create a vm of f18 (source:liveCD) 3. Edit f18 domain xml and add this: <channel type='unix'> <source mode='bind' path='/var/lib/libvirt/qemu/f16x86_64.agent'/> <target type='virtio' name='org.qemu.guest_agent.0'/> </channel> 4. On host: #./tools/virsh start f18 5. On guest: #yum install qemu-guest-agent -y 6. On host: # ./tools/virsh qemu-agent-command f18 '{"execute":"guest-network-get-interfaces"}' Expected Response: {"return":[{"name":"lo","ip- addresses":[{"ip-address-type":"ipv4","ip-address":"127.0.0.1","prefix":8},{"ip-address-type":"ipv6","ip-address":"::1","prefix":128}],"hardware-address":"00:00:00:00:00:00"},{"name":"eth0","ip-addresses":[{"ip-address-type":"ipv4","ip-address":"192.168.122.62","prefix":24},{"ip-address-type":"ipv6","ip-address":"fe80::5054:ff:fe14:9998","prefix":64}],"hardware-address":"52:54:00:14:99:98"}]} Actual result: (null) Where am I going wrong? -- Nehal J. Wani UG2, BTech CS+MS(CL) IIIT-Hyderabad http://commanlinewani.blogspot.com

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[libvirt-users] Enabling route_localnet on private network
by McEvoy, James 16 Jun '13

16 Jun '13

I have an issue setting a persistent kernel option on a libvirt net device since that device does not exist early enough during the boot of the KVM host. I am using the 127.0.0.0 local net for cluster communication between the KVM host and its guests as well as between KVM guests. In order to use addresses on the 127.0.0.0/8 network, which is reserved for local communication, two configuration changes must be made after the system is rebooted. First the default route of 127.0.0.1/0 to the loopback device must be deleted which I did by adding an "ip route delete" command to the ifcfg-br0 file that starts the bridged network that is used by the KVM guests. The second configuration change is where I am having trouble. For the second change I need to set the kernel boolean net.ipv4.conf.pvt0.route_localnet to be true to allow routing of the 127.0.0.0/8 on the libvirt net device that I have configured to use addresses on the 127.0.0.0/8 network. Normally I would do this by adding "net.ipv4.conf.pvt0.route_localnet = 1" to /etc/sysctl.conf but this does not work because the libvirt pvt0 device does not exist when the settings in the /etc/sysctl.conf are done. My question is where can I add the command "/sbin/sysctl -w net.ipv4.conf.pvt0.route_localnet=1" to the start-up files so the command is run after the libvirt device pvt0 has been autostarted? I am running on RHEL 6.4 x86_64. --jim

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[libvirt-users] [virt-tools-list] How to solve the UID repeatetion problem of virt-clone one WINDOWS virtual machine
by cochen 15 Jun '13

15 Jun '13

Hi all: If I use "virt-clone" to clone a windows virtual machine , the new windows vm is sure be have a uid which the same with the source windows. How can I make them difference auto? Best regards; chencong

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[libvirt-users] [virt-tools-list] How to solve the UID repeatetion problem of virt-clone one WINDOWS virtual machine
by cochen 15 Jun '13

15 Jun '13

Hi all: If I use "virt-clone" to clone a windows virtual machine , the new windows vm is sure be have a uid which the same with the source windows. How can I make them difference auto? Best regards; chencong

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[libvirt-users] can virsh set the cpuset attribute of <vcpu ..> (CPU Allocation) ?
by Edoardo Comar 14 Jun '13

14 Jun '13

Is it possible to use virsh to set the cpuset attribute of the CPU Allocation element in a domain ? <domain> ... <vcpu placement='static' cpuset="1-4,^3,6" current="1">2</vcpu> ... </domain> I have seen that virsh vcpupin and virsh emulatorpin can be used to query and set the cpusets of the <vcpupin> and <emulatorpin> children elements of <cputune> which override the cpuset of <vcpu>. If i did not have to pin to different PCPUs, I would execute just one command for the whole domain rather than one command per VCPU + one per the emulator threads. Thanks! -------------------------------------------------- regards, Edoardo Comar WebSphere Application Service Platform for Networks (ASPN) ecomar(a)uk.ibm.com IBM UK Ltd, Hursley Park, SO21 2JN Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU

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Re: [libvirt-users] How to mount / use a hard disk partition for libvirt instead of created a new virtual disk
by Roland Giesler 14 Jun '13

14 Jun '13

I change the topic to be more descriptive. I hope this doesn't break the message threading of this list! On Thu, Jun 13, 2013 at 8:48 PM, Roland Giesler <roland(a)giesler.za.net> wrote: > Surely there must be someone here that knows how to do this? Maybe > someone that has used some other partition type in this way? > > On Mon, Jun 10, 2013 at 10:06 PM, Roland Giesler <roland(a)giesler.za.net> wrote: >> I'm running Ubuntu desktop 12.10 with libvirt and virt-manager (gui). >> >> I have been led to believe that it is possible to use and existing partition >> as the disk storage volume for a virtual machine. >> >> The windows partition is /dev/sda2, but if I use fs: Pre-formatted Block >> Device I can select the partion. What I can't figure out is how to tell the >> vitual machine to use this volume. >> >> I tried with virt-manager, but the only options I have are >> >> * Local media >> * Network install >> * Network Boot >> * Import Existing Disk Image >> >> How can I do this? >> >> regards >> >> Roland Giesler >>

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[libvirt-users] Starting libvirt management daemon: failed!
by Евгений Суворов 13 Jun '13

13 Jun '13

Hello all, I had Debian 6.0.6 and libvirt 0.8.3 but it is was default installed without ESXi support (sudo apt-get install libvirt-bin). And it was working. I downloaded libvirt 0.9.12 and and have result: $ ./configure --with-exsi $ make $ sudo make install oneadmin@debian:~$ virsh virsh: /usr/local/lib/libvirt.so.0: version `LIBVIRT_PRIVATE_0.9.12' not found (required by virsh) oneadmin@debian:~$ /etc/init.d/libvirt-bin start Starting libvirt management daemon: libvirtd/usr/sbin/libvirtd: /usr/local/lib/libvirt.so.0: version `LIBVIRT_PRIVATE_0.9.12' not found (required by /usr/sbin/libvirtd) failed! What me do? -- С уважением, Евгений. Тел: +79060665574 ICQ: 380264507

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[libvirt-users] virsh snapshot-create and blockcopy
by Thomas Stein 10 Jun '13

10 Jun '13

Hello. I just tried the following: virsh dumpxml --security-info gentoo-template > gentoo-template.xml virsh snapshot-create gentoo-template virsh undefine gentoo-template virsh blockcopy gentoo-template vda /opt/virt-backup-blockcopy/gentoo-template/gentoo-template.qcow2 --wait --verbose --finish virsh define gentoo-template.xml virsh snapshot-delete gentoo-template --current But if i restore the /opt/virt-backup-blockcopy/gentoo-template/gentoo-template.qcow2 the snapshot is gone. Someone has an idea what i'm missing? I suppose i'm just missunderstandig the snapshot mechanism. thanks an best regards t.

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[libvirt-users] Pools are not persistent
by Daniel Bareiro 10 Jun '13

10 Jun '13

Hi all! I'm trying virt-manager on Debian Wheezy and I noticed that it has already defined a "default" pool. But if I run: # /etc/init.d/libvirt-bin restart I lose the definition of the pools. Actually, there are the definitions of the pools; but these are not read after restarting libvirt. ss01:/etc/libvirt/storage# ls -l total 8 drwxr-xr-x 2 root root 4096 jun 1 09:36 autostart -rw------- 1 root root 664 jun 1 13:46 default.xml ss01:/etc/libvirt/storage/autostart# ls -l total 0 lrwxrwxrwx 1 root root 32 may 24 07:24 default.xml -> /etc/libvirt/storage/default.xml After restart libvirt: virsh # pool-list Name State Autostart ----------------------------------------- This is what I see in libvirtd.log: 2013-06-02 01:05:29.709+0000: 19289: info : libvirt version: 0.9.12 2013-06-02 01:05:29.709+0000: 19289: error : virStorageDefParsePerms:613 : XML error: malformed owner element 2013-06-02 01:05:30.210+0000: 19289: error : virExecWithHook:424 : Cannot find 'pm-is-supported' in path: No existe el fichero o el directorio 2013-06-02 01:05:30.211+0000: 19289: warning : qemuCapsInit:949 : Failed to get host power management capabilities 2013-06-02 01:05:33.014+0000: 19289: error : virExecWithHook:424 : Cannot find 'pm-is-supported' in path: No existe el fichero o el directorio 2013-06-02 01:05:33.014+0000: 19289: warning : lxcCapsInit:77 : Failed to get host power management capabilities 2013-06-02 01:05:33.025+0000: 19289: error : virExecWithHook:424 : Cannot find 'pm-is-supported' in path: No existe el fichero o el directorio 2013-06-02 01:05:33.025+0000: 19289: warning : umlCapsInit:87 : Failed to get host power management capabilities could this be due to some type of error in the XML file that defines the pool? ss01:/etc/libvirt/storage# cat default.xml  <pool type='dir'> <name>default</name> <uuid>3174232f-3d63-3167-aa25-3949671bf4c2</uuid> <capacity unit='bytes'>0</capacity> <allocation unit='bytes'>0</allocation> <available unit='bytes'>0</available> <source> </source> <target> <path>/var/lib/libvirt/images</path> <permissions> <mode>0700</mode> <owner>4294967295</owner> <group>4294967295</group> </permissions> </target> </pool> These are the versions of the packages I'm using: libvirt-bin: 0.9.12-11 (Architecture: i386) virt-manager: 0.9.1-4 (Architecture: all) Thanks in advance for your reply. Regards, Daniel -- Daniel Bareiro - GNU/Linux registered user #188.598 Proudly running Debian GNU/Linux with uptime: 21:50:39 up 17 days, 8:14, 12 users, load average: 0.00, 0.04, 0.00

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