[libvirt-users] Fedora 19/20 new install :Unable to create vcpu cgroup

Patrick Chemla patrick.chemla at performance-managers.com
Sun Jun 15 08:46:41 UTC 2014


Hi,

It it can help, I run virt-install with -d option

# virt-install --name f20vm --disk /home/kvmimages/f20vm --cdrom 
/home/kvmimages/Fedora-20-x86_64-DVD.iso --memory 2048 -d
[dim., 15 juin 2014 10:45:15 virt-install 9074] DEBUG (cli:187) Launched 
with command line: /usr/share/virt-manager/virt-install --name f20vm 
--disk /home/kvmimages/f20vm --cdrom 
/home/kvmimages/Fedora-20-x86_64-DVD.iso --memory 2048 -d
[dim., 15 juin 2014 10:45:15 virt-install 9074] DEBUG (cli:195) 
Requesting libvirt URI default
[dim., 15 juin 2014 10:45:16 virt-install 9074] DEBUG (cli:199) Received 
libvirt URI qemu:///system
[dim., 15 juin 2014 10:45:16 virt-install 9074] DEBUG (virt-install:193) 
Requesting virt method 'Par défaut', hv type 'Par défaut'.
[dim., 15 juin 2014 10:45:16 virt-install 9074] DEBUG (virt-install:432) 
Received virt method 'kvm'
[dim., 15 juin 2014 10:45:16 virt-install 9074] DEBUG (virt-install:433) 
Hypervisor name is 'hvm'
[dim., 15 juin 2014 10:45:16 virt-install 9074] DEBUG (cli:476) DISPLAY 
is not set: defaulting to nographics.
[dim., 15 juin 2014 10:45:16 virt-install 9074] DEBUG (pollhelpers:36) 
Unable to list all volumes: Requested operation is not valid: storage 
pool 'gnome-boxes' is not active
[dim., 15 juin 2014 10:45:16 virt-install 9074] DEBUG (pollhelpers:36) 
Unable to list all volumes: Requested operation is not valid: storage 
pool 'Téléchargements' is not active
[dim., 15 juin 2014 10:45:16 virt-install 9074] WARNING 
(virt-install:343) CDROM media does not print to the text console by 
default, so you likely will not see text install output. You might want 
to use --location.
[dim., 15 juin 2014 10:45:16 virt-install 9074] DEBUG (virt-install:551) 
Guest.has_install_phase: True

Début d'installation...
[dim., 15 juin 2014 10:45:16 virt-install 9074] DEBUG 
(distroinstaller:417) Using scratchdir=/var/lib/libvirt/boot
[dim., 15 juin 2014 10:45:16 virt-install 9074] DEBUG (guest:449) 
Generated install XML:
<domain type="kvm">
   <name>f20vm</name>
   <uuid>4ce6b5f5-ed0f-48fa-8d8f-1dc846940f21</uuid>
   <memory>2097152</memory>
   <currentMemory>2097152</currentMemory>
   <vcpu>1</vcpu>
   <os>
     <type arch="x86_64">hvm</type>
     <boot dev="cdrom"/>
     <boot dev="hd"/>
   </os>
   <features>
     <acpi/>
     <apic/>
     <pae/>
   </features>
   <cpu mode="custom" match="exact">
     <model>SandyBridge</model>
   </cpu>
   <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>destroy</on_reboot>
   <on_crash>destroy</on_crash>
   <devices>
     <emulator>/usr/bin/qemu-kvm</emulator>
     <disk type="file" device="disk">
       <driver name="qemu" type="qcow2"/>
       <source file="/home/kvmimages/f20vm"/>
       <target dev="hda" bus="ide"/>
     </disk>
     <disk type="file" device="cdrom">
       <driver name="qemu" type="raw"/>
       <source file="/home/kvmimages/Fedora-20-x86_64-DVD.iso"/>
       <target dev="hdb" bus="ide"/>
       <readonly/>
     </disk>
     <controller type="usb" index="0" model="ich9-ehci1"/>
     <controller type="usb" index="0" model="ich9-uhci1">
       <master startport="0"/>
     </controller>
     <controller type="usb" index="0" model="ich9-uhci2">
       <master startport="2"/>
     </controller>
     <controller type="usb" index="0" model="ich9-uhci3">
       <master startport="4"/>
     </controller>
     <interface type="network">
       <source network="default"/>
       <mac address="52:54:00:83:bb:cb"/>
     </interface>
     <input type="mouse" bus="ps2"/>
     <console type="pty"/>
   </devices>
</domain>

[dim., 15 juin 2014 10:45:16 virt-install 9074] DEBUG (guest:450) 
Generated boot XML:
<domain type="kvm">
   <name>f20vm</name>
   <uuid>4ce6b5f5-ed0f-48fa-8d8f-1dc846940f21</uuid>
   <memory>2097152</memory>
   <currentMemory>2097152</currentMemory>
   <vcpu>1</vcpu>
   <os>
     <type arch="x86_64">hvm</type>
     <boot dev="hd"/>
   </os>
   <features>
     <acpi/>
     <apic/>
     <pae/>
   </features>
   <cpu mode="custom" match="exact">
     <model>SandyBridge</model>
   </cpu>
   <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>restart</on_crash>
   <devices>
     <emulator>/usr/bin/qemu-kvm</emulator>
     <disk type="file" device="disk">
       <driver name="qemu" type="qcow2"/>
       <source file="/home/kvmimages/f20vm"/>
       <target dev="hda" bus="ide"/>
     </disk>
     <disk type="block" device="cdrom">
       <target dev="hdb" bus="ide"/>
       <readonly/>
     </disk>
     <controller type="usb" index="0" model="ich9-ehci1"/>
     <controller type="usb" index="0" model="ich9-uhci1">
       <master startport="0"/>
     </controller>
     <controller type="usb" index="0" model="ich9-uhci2">
       <master startport="2"/>
     </controller>
     <controller type="usb" index="0" model="ich9-uhci3">
       <master startport="4"/>
     </controller>
     <interface type="network">
       <source network="default"/>
       <mac address="52:54:00:83:bb:cb"/>
     </interface>
     <input type="mouse" bus="ps2"/>
     <console type="pty"/>
   </devices>
</domain>

[dim., 15 juin 2014 10:45:16 virt-install 9074] DEBUG (cli:234) File 
"/usr/share/virt-manager/virt-install", line 876, in <module>
     sys.exit(main())
   File "/usr/share/virt-manager/virt-install", line 870, in main
     start_install(guest, continue_inst, options)
   File "/usr/share/virt-manager/virt-install", line 588, in start_install
     fail(e, do_exit=False)
   File "/usr/share/virt-manager/virtinst/cli.py", line 234, in fail
     logging.debug("".join(traceback.format_stack()))

[dim., 15 juin 2014 10:45:16 virt-install 9074] ERROR (cli:235) internal 
error: process exited while connecting to monitor: Failed to create chardev

[dim., 15 juin 2014 10:45:16 virt-install 9074] DEBUG (cli:237)
Traceback (most recent call last):
   File "/usr/share/virt-manager/virt-install", line 560, in start_install
     dom = guest.start_install(meter=meter, noboot=options.noreboot)
   File "/usr/share/virt-manager/virtinst/guest.py", line 403, in 
start_install
     noboot)
   File "/usr/share/virt-manager/virtinst/guest.py", line 467, in 
_create_guest
     dom = self.conn.createLinux(start_xml or final_xml, 0)
   File "/usr/lib64/python2.7/site-packages/libvirt.py", line 2897, in 
createLinux
     if ret is None:raise libvirtError('virDomainCreateLinux() failed', 
conn=self)
libvirtError: internal error: process exited while connecting to 
monitor: Failed to create chardev

[dim., 15 juin 2014 10:45:16 virt-install 9074] DEBUG (cli:248) 
L'installation du domaine ne semble pas s'être terminée avec succès.
Si c'est bon, vous pouvez démarrer le domaine en lançant :
  virsh --connect qemu:///system start f20vm
sinon, recommencez l'installation.
L'installation du domaine ne semble pas s'être terminée avec succès.
Si c'est bon, vous pouvez démarrer le domaine en lançant :
  virsh --connect qemu:///system start f20vm
sinon, recommencez l'installation.


Le 15/06/2014 11:41, Patrick Chemla a écrit :
>
> Thanks for your interest.
>
> Here are the dir/files permissions for the kvmimages dir:
>
> # ls -ld /home /home/kvmimages /home/kvmimages/*
> drwxr-xr-x. 4 root root        4096 14 juin  23:05 /home
> drwxrwxrwx  2 root root        4096 15 juin  09:19 /home/kvmimages
> -rw-rw-rwx  1 root root 12884901888 14 juin  23:07 
> /home/kvmimages/eff1.img
> -rw-rw-rwx  1 root root 12884901888 14 juin  23:11 
> /home/kvmimages/eff2.img
> -rw----r-x  1 root root 12887130112 11 juin  15:51 
> /home/kvmimages/effi.qcow2
> -rw-r--r--  1 root root  4295884800 15 juin  09:19 /home/kvmimages/f20vm
> -rw-r--r-x  1 qemu qemu  4603248640 12 déc.   2013 
> /home/kvmimages/Fedora-20-x86_64-DVD.iso
>
> As you can see, all are executabled by others.
>
> Should I chown to qemu? or something else?
>
> Patrick
> Le 15/06/2014 11:32, Kashyap Chamarthy a écrit :
>> On Sun, Jun 15, 2014 at 10:27:12AM +0300, Patrick Chemla wrote:
>>
>> [. . .]
>>
>>> I adapted your commands to my conf:
>>>
>>> # qemu-img create -f qcow2 -o preallocation=metadata 
>>> /home/kvmimages/f20vm
>>> 4G
>>> Formatting '/home/kvmimages/f20vm', fmt=qcow2 size=4294967296 
>>> encryption=off
>>> cluster_size=65536 preallocation='metadata' lazy_refcounts=off
>>> # virt-install --name f20vm --disk /home/kvmimages/f20vm --cdrom
>>> /home/kvmimages/Fedora-20-x86_64-DVD.iso --memory 2048
>>> WARNING  CDROM media does not print to the text console by default, 
>>> so you
>>> likely will not see text install output. You might want to use 
>>> --location.
>>>
>>> Début d'installation...
>>> ERROR    internal error: process exited while connecting to monitor: 
>>> Failed
>>> to create chardev
>>>
>>> L'installation du domaine ne semble pas s'être terminée avec succès.
>>> Si c'est bon, vous pouvez démarrer le domaine en lançant :
>>>   virsh --connect qemu:///system start f20vm
>>> sinon, recommencez l'installation.
>>>
>>> Always the same Failed to create chardev.
>>>
>>> I do think it's a problem of permission as you said, but on which
>>> directory/files?
>> Wherever your disk image is located (/home/kvmimages) QEMU should be
>> able to access it (executable bit for 'others'). For instance, I have
>> these permissions for my home directory where I store VM images:
>>
>>      $ ls -lash / | grep home
>>      4.0K drwxr-xr-x.   7 root    root     4.0K Aug  7  2013 home
>>
>> Permissions on the specific directory where I store VM images
>> (/home/kashyap/vmimages):
>>
>>      $ ls -lash /home/kashyap/ | grep vmimages
>>      4.0K drwxrwxr-x.   2 kashyap kashyap 4.0K Jun 14 21:50 vmimages
>>
>>> When I create/run a F20 VM on my local computer, it's OK. I have
>>> verified rpm versions, seem OK. I have rsynced /etc/libvirt dir from
>>> local computer to remote server.
>>>
>>> It works on my local like on yours,but not on my remote. I need the
>>> remote to run VMs.
>> If I'm parsing you correctly, you've SSHed into the remote machine and
>> running virt-install. Like I said, if QEMU can access your home
>> directory (as I noted above), where you're storing disk images, you
>> shouldn't have any issues.
>>
>




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