all domains paused, maybe logging might be helpfull
by Lennart Fricke
Hello,
I just hit the situation that all domains on a host where paused due to
missing space. It took me some time to figure out that there was no
space left for the images on the host. I learned that 'virsh domstate
--reason $GUEST' and 'domblkerror $GUEST' could have helped me. But the
logs are silent about the problem.
Would it be possible to show these problems in logs or is there other
documentation than the reference to find out how to troubleshoot those
issues?
Thank you
Lennart
7 months
Host cpu model from "virsh capabilities" command not matching host
physical model
by xtec＠trimaso.com.mx
The host cpu here is intel i5 1135g7 (this is a laptop).
Using libvirt 9.0.0
Using "virsh capabilities" command, the //host/cpu/model part reads
Broadwell-noTSX-IBRS
But there are also the Skylake cpus available, which are newer than
broadwell, and thus should better match an intel core 11th generation
Why is libvirt outputting an "older processor"?
9 months
Libvirt permissions using facl instead of groups
by Stephen Lauck
Is there a way to use facl to specifically grant permission to all the
files/dirs that libvirt needs instead of using groups?
I am automating the install of libvirt and would like to be able to use it
without sudo or having to logout/login. I have done a similar thing on a
docker install using setfacl but was wondering if someone can point me to
the specific kvm/libvirt places I need to grant and the privileges.
Thank you for any help!
-Stephen
9 months
trustGuestRxFilters broken after upgrade to Debian 12
by Paul B. Henson
We've been running Debian 11 for a while, using sr-iov:
<network>
<name>sr-iov-intel-10G-1</name>
<uuid>6bdaa4c8-e720-4ea0-9a50-91cb7f2c83b1</uuid>
<forward mode='hostdev' managed='yes'>
<pf dev='eth2'/>
</forward>
</network>
and allocating vf's from the pool:
<interface type='network' trustGuestRxFilters='yes'>
<mac address='52:54:00:08:da:5b'/>
<source network='sr-iov-intel-10G-1'/>
<vlan>
<tag id='50'/>
</vlan>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
After upgrading to Debian 12, when I try to start any vm which uses the
trustGuestRxFilters option, it fails to start with the message:
error: internal error: unable to execute QEMU command 'query-rx-filter':
invalid net client name: hostdev0
If I remove the option, it starts fine (but of course is broken
functionality wise as the option wasn't there just for fun :) ).
Any thoughts on what's going on here? The Debian 12 versions are:
libvirt-daemon/stable,now 9.0.0-4
qemu-system-x86/stable,now 1:7.2+dfsg-7+deb12u3
I see Debian 12 backports has version 8.1.2+ds-1~bpo12+1 of qemu, but no
newer versions of libvirt. I haven't tried the backports version to
see if that resolves the problem.
Thanks much...
9 months
Error when live migrating with volumes on NFS
by João Jandre
Hi, all
I've been having an annoying issue with live VM + volume migration. When
I try to use |virDomainMigrate2| to migrate a VM and some of its volumes
(but not all) I get the following error:
|unable to execute QEMU command 'block-export-add': Block node is read-only |
Some additional context:
* I originally found this issue using the java bindings, but I've been
able to reproduce it using virsh;
* I'm using Libvirt 8.0.0 and Qemu 6.2.0;
* This only happens when the VM has volumes on NFS storage;
* The issue does not happen when migrating all the volumes that are on
NFS storage. Note that, if the VM has volumes that are on some other
type of storage, such as ISCSI, those do not need to be migrated.
However, migrating any volume will raise the error if the volumes on
NFS are not migrated as well;
* I've tried a number of valid combinations along the
|VIR_MIGRATE_LIVE| flag, using the flags: |VIR_MIGRATE_PAUSED|,
|VIR_MIGRATE_NON_SHARED_DISK|, |VIR_MIGRATE_NON_SHARED_INC|,
|VIR_MIGRATE_UNSAFE|, |VIR_MIGRATE_COMPRESSED|.
The easiest way I've found to reproduce this error was using the
following steps:
1. Create a VM using virt-manager, it must have at least two volumes,
at least one of them must be on NFS storage. Here's the XML of one
of the VMs I've tested with:
|<domain type='kvm' id='4'> <name>ubuntu22.04</name>
<uuid>9965e409-c89d-408c-a9f7-488184566d56</uuid> <metadata>
<libosinfo:libosinfo
xmlns:libosinfo="http://libosinfo.org/xmlns/libvirt/domain/1.0">
<libosinfo:os id="http://ubuntu.com/ubuntu/22.04"/>
</libosinfo:libosinfo> </metadata> <memory unit='KiB'>2097152</memory>
<currentMemory unit='KiB'>2097152</currentMemory> <vcpu
placement='static'>1</vcpu> <resource> <partition>/machine</partition>
</resource> <os> <type arch='x86_64' machine='pc-q35-6.2'>hvm</type>
<boot dev='hd'/> </os> <features> <acpi/> <apic/> <vmport state='off'/>
</features> <cpu mode='host-passthrough' check='none' migratable='on'/>
<clock offset='utc'> <timer name='rtc' tickpolicy='catchup'/> <timer
name='pit' tickpolicy='delay'/> <timer name='hpet' present='no'/>
</clock> <on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <pm>
<suspend-to-mem enabled='no'/> <suspend-to-disk enabled='no'/> </pm>
<devices> <emulator>/usr/bin/qemu-system-x86_64</emulator> <disk
type='file' device='disk'> <driver name='qemu' type='qcow2'/> <source
file='/mnt/nfs-storage/template.qcow2' index='1'/> <backingStore/>
<target dev='vda' bus='virtio'/> <alias name='virtio-disk0'/> <address
type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/>
</disk> <disk type='file' device='disk'> <driver name='qemu'
type='qcow2'/> <source file='/mnt/nfs-storage/vol.qcow2' index='2'/>
<backingStore/> <target dev='vdb' bus='virtio'/> <alias
name='virtio-disk1'/> <address type='pci' domain='0x0000' bus='0x08'
slot='0x00' function='0x0'/> </disk> <controller type='usb' index='0'
model='qemu-xhci' ports='15'> <alias name='usb'/> <address type='pci'
domain='0x0000' bus='0x02' slot='0x00' function='0x0'/> </controller>
<controller type='pci' index='0' model='pcie-root'> <alias
name='pcie.0'/> </controller> <controller type='pci' index='1'
model='pcie-root-port'> <model name='pcie-root-port'/> <target
chassis='1' port='0x10'/> <alias name='pci.1'/> <address type='pci'
domain='0x0000' bus='0x00' slot='0x02' function='0x0'
multifunction='on'/> </controller> <controller type='pci' index='2'
model='pcie-root-port'> <model name='pcie-root-port'/> <target
chassis='2' port='0x11'/> <alias name='pci.2'/> <address type='pci'
domain='0x0000' bus='0x00' slot='0x02' function='0x1'/> </controller>
<controller type='pci' index='3' model='pcie-root-port'> <model
name='pcie-root-port'/> <target chassis='3' port='0x12'/> <alias
name='pci.3'/> <address type='pci' domain='0x0000' bus='0x00'
slot='0x02' function='0x2'/> </controller> <controller type='pci'
index='4' model='pcie-root-port'> <model name='pcie-root-port'/> <target
chassis='4' port='0x13'/> <alias name='pci.4'/> <address type='pci'
domain='0x0000' bus='0x00' slot='0x02' function='0x3'/> </controller>
<controller type='pci' index='5' model='pcie-root-port'> <model
name='pcie-root-port'/> <target chassis='5' port='0x14'/> <alias
name='pci.5'/> <address type='pci' domain='0x0000' bus='0x00'
slot='0x02' function='0x4'/> </controller> <controller type='pci'
index='6' model='pcie-root-port'> <model name='pcie-root-port'/> <target
chassis='6' port='0x15'/> <alias name='pci.6'/> <address type='pci'
domain='0x0000' bus='0x00' slot='0x02' function='0x5'/> </controller>
<controller type='pci' index='7' model='pcie-root-port'> <model
name='pcie-root-port'/> <target chassis='7' port='0x16'/> <alias
name='pci.7'/> <address type='pci' domain='0x0000' bus='0x00'
slot='0x02' function='0x6'/> </controller> <controller type='pci'
index='8' model='pcie-root-port'> <model name='pcie-root-port'/> <target
chassis='8' port='0x17'/> <alias name='pci.8'/> <address type='pci'
domain='0x0000' bus='0x00' slot='0x02' function='0x7'/> </controller>
<controller type='pci' index='9' model='pcie-root-port'> <model
name='pcie-root-port'/> <target chassis='9' port='0x18'/> <alias
name='pci.9'/> <address type='pci' domain='0x0000' bus='0x00'
slot='0x03' function='0x0' multifunction='on'/> </controller>
<controller type='pci' index='10' model='pcie-root-port'> <model
name='pcie-root-port'/> <target chassis='10' port='0x19'/> <alias
name='pci.10'/> <address type='pci' domain='0x0000' bus='0x00'
slot='0x03' function='0x1'/> </controller> <controller type='pci'
index='11' model='pcie-root-port'> <model name='pcie-root-port'/>
<target chassis='11' port='0x1a'/> <alias name='pci.11'/> <address
type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x2'/>
</controller> <controller type='pci' index='12' model='pcie-root-port'>
<model name='pcie-root-port'/> <target chassis='12' port='0x1b'/> <alias
name='pci.12'/> <address type='pci' domain='0x0000' bus='0x00'
slot='0x03' function='0x3'/> </controller> <controller type='pci'
index='13' model='pcie-root-port'> <model name='pcie-root-port'/>
<target chassis='13' port='0x1c'/> <alias name='pci.13'/> <address
type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x4'/>
</controller> <controller type='pci' index='14' model='pcie-root-port'>
<model name='pcie-root-port'/> <target chassis='14' port='0x1d'/> <alias
name='pci.14'/> <address type='pci' domain='0x0000' bus='0x00'
slot='0x03' function='0x5'/> </controller> <controller type='sata'
index='0'> <alias name='ide'/> <address type='pci' domain='0x0000'
bus='0x00' slot='0x1f' function='0x2'/> </controller> <controller
type='virtio-serial' index='0'> <alias name='virtio-serial0'/> <address
type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
</controller> <controller type='scsi' index='0' model='virtio-scsi'>
<alias name='scsi0'/> <address type='pci' domain='0x0000' bus='0x07'
slot='0x00' function='0x0'/> </controller> <interface type='bridge'>
<mac address='52:54:00:c4:a7:6d'/> <source bridge='br-test'/> <target
dev='vnet6'/> <model type='virtio'/> <alias name='net0'/> <address
type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
</interface> <serial type='pty'> <source path='/dev/pts/3'/> <target
type='isa-serial' port='0'> <model name='isa-serial'/> </target> <alias
name='serial0'/> </serial> <console type='pty' tty='/dev/pts/3'> <source
path='/dev/pts/3'/> <target type='serial' port='0'/> <alias
name='serial0'/> </console> <channel type='unix'> <source mode='bind'
path='/var/lib/libvirt/qemu/channel/target/domain-4-ubuntu22.04/org.qemu.guest_agent.0'/>
<target type='virtio' name='org.qemu.guest_agent.0'
state='disconnected'/> <alias name='channel0'/> <address
type='virtio-serial' controller='0' bus='0' port='1'/> </channel>
<channel type='spicevmc'> <target type='virtio'
name='com.redhat.spice.0' state='connected'/> <alias name='channel1'/>
<address type='virtio-serial' controller='0' bus='0' port='2'/>
</channel> <input type='tablet' bus='usb'> <alias name='input0'/>
<address type='usb' bus='0' port='1'/> </input> <input type='mouse'
bus='ps2'> <alias name='input1'/> </input> <input type='keyboard'
bus='ps2'> <alias name='input2'/> </input> <graphics type='spice'
port='5901' autoport='yes' listen='127.0.0.1'> <listen type='address'
address='127.0.0.1'/> </graphics> <sound model='ich9'> <alias
name='sound0'/> <address type='pci' domain='0x0000' bus='0x00'
slot='0x1b' function='0x0'/> </sound> <audio id='1' type='spice'/>
<video> <model type='qxl' ram='65536' vram='65536' vgamem='16384'
heads='1' primary='yes'/> <alias name='video0'/> <address type='pci'
domain='0x0000' bus='0x00' slot='0x01' function='0x0'/> </video>
<redirdev bus='usb' type='spicevmc'> <alias name='redir0'/> <address
type='usb' bus='0' port='2'/> </redirdev> <redirdev bus='usb'
type='spicevmc'> <alias name='redir1'/> <address type='usb' bus='0'
port='3'/> </redirdev> <memballoon model='virtio'> <alias
name='balloon0'/> <address type='pci' domain='0x0000' bus='0x05'
slot='0x00' function='0x0'/> </memballoon> <rng model='virtio'> <backend
model='random'>/dev/urandom</backend> <alias name='rng0'/> <address
type='pci' domain='0x0000' bus='0x06' slot='0x00' function='0x0'/>
</rng> </devices> <seclabel type='dynamic' model='dac' relabel='yes'>
<label>+0:+0</label> <imagelabel>+0:+0</imagelabel> </seclabel> </domain> |
2. Use |virsh migrate --domain <name> --copy-storage-all --live
--desturi <other_host_uri> --xml ./newxml| to migrate the VM and one
of its volumes, while leaving a volume that is on NFS without
migration. I've tested migrating the volume to another NFS storage,
as well as migrating to a ISCSI storage that is mounted on both
hosts, the result is the same. Here's the content of the |newxml|
for this example:
|<domain type='kvm' id='4'> <name>ubuntu22.04</name>
<uuid>9965e409-c89d-408c-a9f7-488184566d56</uuid> <metadata>
<libosinfo:libosinfo
xmlns:libosinfo="http://libosinfo.org/xmlns/libvirt/domain/1.0">
<libosinfo:os id="http://ubuntu.com/ubuntu/22.04"/>
</libosinfo:libosinfo> </metadata> <memory unit='KiB'>2097152</memory>
<currentMemory unit='KiB'>2097152</currentMemory> <vcpu
placement='static'>1</vcpu> <resource> <partition>/machine</partition>
</resource> <os> <type arch='x86_64' machine='pc-q35-6.2'>hvm</type>
<boot dev='hd'/> </os> <features> <acpi/> <apic/> <vmport state='off'/>
</features> <cpu mode='host-passthrough' check='none' migratable='on'/>
<clock offset='utc'> <timer name='rtc' tickpolicy='catchup'/> <timer
name='pit' tickpolicy='delay'/> <timer name='hpet' present='no'/>
</clock> <on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <pm>
<suspend-to-mem enabled='no'/> <suspend-to-disk enabled='no'/> </pm>
<devices> <emulator>/usr/bin/qemu-system-x86_64</emulator> <disk
type='file' device='disk'> <driver name='qemu' type='qcow2'
cache='none'/> <source file='/mnt/nfs-storage/template1.qcow2'
index='1'/> <backingStore/> <target dev='vda' bus='virtio'/> <alias
name='virtio-disk0'/> <address type='pci' domain='0x0000' bus='0x04'
slot='0x00' function='0x0'/> </disk> <disk type='file' device='disk'>
<driver name='qemu' type='qcow2' cache='none'/> <source
file='/mnt/other-storage/vol.qcow2' index='2'/> <backingStore/> <target
dev='vdb' bus='virtio'/> <alias name='virtio-disk1'/> <address
type='pci' domain='0x0000' bus='0x08' slot='0x00' function='0x0'/>
</disk> <controller type='usb' index='0' model='qemu-xhci' ports='15'>
<alias name='usb'/> <address type='pci' domain='0x0000' bus='0x02'
slot='0x00' function='0x0'/> </controller> <controller type='pci'
index='0' model='pcie-root'> <alias name='pcie.0'/> </controller>
<controller type='pci' index='1' model='pcie-root-port'> <model
name='pcie-root-port'/> <target chassis='1' port='0x10'/> <alias
name='pci.1'/> <address type='pci' domain='0x0000' bus='0x00'
slot='0x02' function='0x0' multifunction='on'/> </controller>
<controller type='pci' index='2' model='pcie-root-port'> <model
name='pcie-root-port'/> <target chassis='2' port='0x11'/> <alias
name='pci.2'/> <address type='pci' domain='0x0000' bus='0x00'
slot='0x02' function='0x1'/> </controller> <controller type='pci'
index='3' model='pcie-root-port'> <model name='pcie-root-port'/> <target
chassis='3' port='0x12'/> <alias name='pci.3'/> <address type='pci'
domain='0x0000' bus='0x00' slot='0x02' function='0x2'/> </controller>
<controller type='pci' index='4' model='pcie-root-port'> <model
name='pcie-root-port'/> <target chassis='4' port='0x13'/> <alias
name='pci.4'/> <address type='pci' domain='0x0000' bus='0x00'
slot='0x02' function='0x3'/> </controller> <controller type='pci'
index='5' model='pcie-root-port'> <model name='pcie-root-port'/> <target
chassis='5' port='0x14'/> <alias name='pci.5'/> <address type='pci'
domain='0x0000' bus='0x00' slot='0x02' function='0x4'/> </controller>
<controller type='pci' index='6' model='pcie-root-port'> <model
name='pcie-root-port'/> <target chassis='6' port='0x15'/> <alias
name='pci.6'/> <address type='pci' domain='0x0000' bus='0x00'
slot='0x02' function='0x5'/> </controller> <controller type='pci'
index='7' model='pcie-root-port'> <model name='pcie-root-port'/> <target
chassis='7' port='0x16'/> <alias name='pci.7'/> <address type='pci'
domain='0x0000' bus='0x00' slot='0x02' function='0x6'/> </controller>
<controller type='pci' index='8' model='pcie-root-port'> <model
name='pcie-root-port'/> <target chassis='8' port='0x17'/> <alias
name='pci.8'/> <address type='pci' domain='0x0000' bus='0x00'
slot='0x02' function='0x7'/> </controller> <controller type='pci'
index='9' model='pcie-root-port'> <model name='pcie-root-port'/> <target
chassis='9' port='0x18'/> <alias name='pci.9'/> <address type='pci'
domain='0x0000' bus='0x00' slot='0x03' function='0x0'
multifunction='on'/> </controller> <controller type='pci' index='10'
model='pcie-root-port'> <model name='pcie-root-port'/> <target
chassis='10' port='0x19'/> <alias name='pci.10'/> <address type='pci'
domain='0x0000' bus='0x00' slot='0x03' function='0x1'/> </controller>
<controller type='pci' index='11' model='pcie-root-port'> <model
name='pcie-root-port'/> <target chassis='11' port='0x1a'/> <alias
name='pci.11'/> <address type='pci' domain='0x0000' bus='0x00'
slot='0x03' function='0x2'/> </controller> <controller type='pci'
index='12' model='pcie-root-port'> <model name='pcie-root-port'/>
<target chassis='12' port='0x1b'/> <alias name='pci.12'/> <address
type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x3'/>
</controller> <controller type='pci' index='13' model='pcie-root-port'>
<model name='pcie-root-port'/> <target chassis='13' port='0x1c'/> <alias
name='pci.13'/> <address type='pci' domain='0x0000' bus='0x00'
slot='0x03' function='0x4'/> </controller> <controller type='pci'
index='14' model='pcie-root-port'> <model name='pcie-root-port'/>
<target chassis='14' port='0x1d'/> <alias name='pci.14'/> <address
type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x5'/>
</controller> <controller type='sata' index='0'> <alias name='ide'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x1f'
function='0x2'/> </controller> <controller type='virtio-serial'
index='0'> <alias name='virtio-serial0'/> <address type='pci'
domain='0x0000' bus='0x03' slot='0x00' function='0x0'/> </controller>
<controller type='scsi' index='0' model='virtio-scsi'> <alias
name='scsi0'/> <address type='pci' domain='0x0000' bus='0x07'
slot='0x00' function='0x0'/> </controller> <interface type='bridge'>
<mac address='52:54:00:c4:a7:6d'/> <source bridge='br-test'/> <target
dev='vnet6'/> <model type='virtio'/> <alias name='net0'/> <address
type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
</interface> <serial type='pty'> <source path='/dev/pts/3'/> <target
type='isa-serial' port='0'> <model name='isa-serial'/> </target> <alias
name='serial0'/> </serial> <console type='pty' tty='/dev/pts/3'> <source
path='/dev/pts/3'/> <target type='serial' port='0'/> <alias
name='serial0'/> </console> <channel type='unix'> <source mode='bind'
path='/var/lib/libvirt/qemu/channel/target/domain-4-ubuntu22.04/org.qemu.guest_agent.0'/>
<target type='virtio' name='org.qemu.guest_agent.0'
state='disconnected'/> <alias name='channel0'/> <address
type='virtio-serial' controller='0' bus='0' port='1'/> </channel>
<channel type='spicevmc'> <target type='virtio'
name='com.redhat.spice.0' state='connected'/> <alias name='channel1'/>
<address type='virtio-serial' controller='0' bus='0' port='2'/>
</channel> <input type='tablet' bus='usb'> <alias name='input0'/>
<address type='usb' bus='0' port='1'/> </input> <input type='mouse'
bus='ps2'> <alias name='input1'/> </input> <input type='keyboard'
bus='ps2'> <alias name='input2'/> </input> <graphics type='spice'
port='5901' autoport='yes' listen='127.0.0.1'> <listen type='address'
address='127.0.0.1'/> </graphics> <sound model='ich9'> <alias
name='sound0'/> <address type='pci' domain='0x0000' bus='0x00'
slot='0x1b' function='0x0'/> </sound> <audio id='1' type='spice'/>
<video> <model type='qxl' ram='65536' vram='65536' vgamem='16384'
heads='1' primary='yes'/> <alias name='video0'/> <address type='pci'
domain='0x0000' bus='0x00' slot='0x01' function='0x0'/> </video>
<redirdev bus='usb' type='spicevmc'> <alias name='redir0'/> <address
type='usb' bus='0' port='2'/> </redirdev> <redirdev bus='usb'
type='spicevmc'> <alias name='redir1'/> <address type='usb' bus='0'
port='3'/> </redirdev> <memballoon model='virtio'> <alias
name='balloon0'/> <address type='pci' domain='0x0000' bus='0x05'
slot='0x00' function='0x0'/> </memballoon> <rng model='virtio'> <backend
model='random'>/dev/urandom</backend> <alias name='rng0'/> <address
type='pci' domain='0x0000' bus='0x06' slot='0x00' function='0x0'/>
</rng> </devices> <seclabel type='dynamic' model='dac' relabel='yes'>
<label>+0:+0</label> <imagelabel>+0:+0</imagelabel> </seclabel> </domain> |
Right after the command is sent, the |unable to execute QEMU command
'block-export-add': Block node is read-only| happens. If I do the same
steps, but migrate all volumes that are on NFS (even if they stay on the
same storage, only changing names), the error does not happen.
Here are some other examples just to clarify when the error happens,
examples with green headers do not present the error, while examples
with red headers do:
Volume Origin Destination
ROOT iSCSI1 iSCSI2
DATA1 iSCSI1 ---
DATA2 iSCSI1 ---
Volume Origin Destination
ROOT iSCSI1 ---
DATA1 iSCSI1 iSCSI2
DATA2 iSCSI2 iSCSI1
Volume Origin Destination
ROOT NFS1 NFS2
DATA1 NFS2 NFS1
DATA2 iSCSI1 ---
Volume Origin Destination
ROOT iSCSI1 NFS2
DATA1 NFS2 ---
DATA2 NFS2 ---
Volume Origin Destination
ROOT iSCSI1 iSCSI1
DATA1 NFS1 ---
DATA2 NFS1 ---
Volume Origin Destination
ROOT iSCSI1 ---
DATA1 NFS2 NFS2
DATA2 NFS2 ---
Has anyone experienced this before? If so, is there another workaround?
As migrating all the volumes that are on NFS storage might be costly in
terms of time and storage/network resources.
Best regards,
João Jandre.
9 months
Libvirt php api 0.5.8
by Simon Fairweather
I am looking to use libvirt_connect_get_domain_capabilities but 0.5.8 has
not be released yet, any timeframe for this to be released?
Regards
Simon.
9 months
Install on Windows for use of Hyper-V driver
by Mateusz Loskot
Hi,
TL;TR: Can I call libvirt API from Go or Python on Windows
host using any pre-built binaries of required components?
I'm trying to understand what I need to install
on Windows host in order to use the Hyper-V
driver [1] and call the API from Go or Python.
The Windows page [2] says
"The development headers are not currently provided in this
installer, so this cannot be used for compiling new
applications against libvirt."
but it does not address development with Go or Python.
The Go module [3] documentation says
"Make sure to have libvirt-dev package (or the development
files otherwise somewhere in your include path)"
I'm not a stranger to C/C++ development, but this information
is not quite helpful for Windows host environment.
The Python bindings [4] documentation makes it clearer
"requires the GCC and pkg-config tools, and development headers"
and also clears remains of my hope which seems to be killed
by this comment [5] on GitLab :
"you likely won't be able to use libvirt with Python on Windows"
which, I sense, can be extrapolated to Go bindings too.
Is my understanding correct that Windows binaries [2]
are for VM manager GUI only and any scripting or development
using libvirt API is not supported on Windows? Hmm, how on
earth the virt-manager itself paves its way to Windows then :-)
[1] https://lists.libvirt.org/archives/list/users@lists.libvirt.org/thread/IH...
[2] https://libvirt.org/windows.html
[3] https://gitlab.com/libvirt/libvirt-go-module
[4] https://pypi.org/project/libvirt-python/
[5] https://gitlab.com/libvirt/libvirt-python/-/issues/7#note_623686805
Best regards,
--
Mateusz Loskot, http://mateusz.loskot.net
9 months, 3 weeks
VM won't start from virt-manager -- Unable to open system.token
by John W. Himpel
I just updated libvirt to 9.10.0-3 and virt-manager to 4.1.0-4. Before
the update, I could start my defined VMs from virt-manager without
issue. Now I get the following:
Error starting domain: can't connect to virtlogd. Unable to open
system.token /run/libvirt/common/system.token: Permission denied
I am running virt-manager from my unpriviledged userid. My userid is
already a member of the libvirt group.
I see no error messages in the journal or in any of the logs under
/var/log
Any suggestions would be greatly appreciated.
9 months, 3 weeks
