thr3ads.net - libvirt users - Re: [libvirt-users] Fedora 19/20 new install :Unable to create vcpu cgroup [Jun 2014]

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Patrick Chemla

2014-Jun-15 06:01 UTC

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

Hi

I have reinstall Fedora 20 from distrib. I have run yum update and yum 
upgrade.

Running kernel is : 3.14.7-200.fc20.x86_64

Installed Libvirt packages are:
libvirt-client-1.1.3.5-2.fc20.x86_64
libvirt-daemon-1.1.3.5-2.fc20.x86_64
libvirt-daemon-config-network-1.1.3.5-2.fc20.x86_64
libvirt-daemon-driver-interface-1.1.3.5-2.fc20.x86_64
libvirt-daemon-driver-network-1.1.3.5-2.fc20.x86_64
libvirt-daemon-driver-nodedev-1.1.3.5-2.fc20.x86_64
libvirt-daemon-driver-nwfilter-1.1.3.5-2.fc20.x86_64
libvirt-daemon-driver-qemu-1.1.3.5-2.fc20.x86_64
libvirt-daemon-driver-secret-1.1.3.5-2.fc20.x86_64
libvirt-daemon-driver-storage-1.1.3.5-2.fc20.x86_64
libvirt-daemon-kvm-1.1.3.5-2.fc20.x86_64
libvirt-glib-0.1.7-2.fc20.x86_64
libvirt-python-1.1.3.5-2.fc20.x86_64

When trying to create a new VM using virt-manager I am getting :

Impossible de terminer l'installation : « internal error: process exited 
while connecting to monitor: Failed to create chardev
  »

Traceback (most recent call last):
   File "/usr/share/virt-manager/virtManager/asyncjob.py", line 91, in
cb_wrapper
     callback(asyncjob, *args, **kwargs)
   File "/usr/share/virt-manager/virtManager/create.py", line 1787, in
do_install
     guest.start_install(meter=meter)
   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


When tyring to create new VM with virt-install, I am getting:

virt-install --name eff1 --disk /home/kvmimages/eff1.img  --cdrom 
/home/kvmimages/Fedora-20-x86_64-DVD.iso --memory 4096B
ERROR    Error: --memory 4096B: invalid literal for int() with base 10: 
'4096B'
[root@eff1 kvmimages]# virt-install --name eff1 --disk 
/home/kvmimages/eff1.img  --cdrom 
/home/kvmimages/Fedora-20-x86_64-DVD.iso --memory 4096
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


When trying to run with virt-manager a VM created on another F20 server:

Erreur lors du démarrage du domaine: internal error: process exited 
while connecting to monitor: Failed to create chardev


Traceback (most recent call last):
   File "/usr/share/virt-manager/virtManager/asyncjob.py", line 91, in
cb_wrapper
     callback(asyncjob, *args, **kwargs)
   File "/usr/share/virt-manager/virtManager/asyncjob.py", line 127,
in
tmpcb
     callback(*args, **kwargs)
   File "/usr/share/virt-manager/virtManager/domain.py", line 1355, in
startup
     self._backend.create()
   File "/usr/lib64/python2.7/site-packages/libvirt.py", line 708, in
create
     if ret == -1: raise libvirtError ('virDomainCreate() failed',
dom=self)
libvirtError: internal error: process exited while connecting to 
monitor: Failed to create chardev


What is this chardev error?

May someone help.

Thanks
Patrick


Le 12/06/2014 19:06, Kashyap Chamarthy a écrit :> On Thu, Jun 12, 2014 at 01:01:18PM +0300, Patrick Chemla wrote:
>> Hi,
>>
>> After full new install of Fedora 19 or 20, I am getting this when I
want to
>> create a new VMs.
> FWIW, I'm able to create new unattended Fedora 20 VMs just fine with a
> script like that[1] which uses virt-install. To invoke the script:
>
>      $ ./create-guest-qcow2.bash f20vm1 f20 x86_64
>
>
> Or you can try trivially install guests with a tool like virt-builder.
> To install a Fedora 20 guest and update to latest available packages:
>
>      $ virt-builder fedora-20 -o f20vm1.qcow2 --update --selinux-relabel \
>        --format qcow2 --size 30G
>
> Import the guest into libvirt:
>
>     $ virt-install --name f20vm1 --ram 2048 --disk \
>        path=/home/kashyap/f20vm1.qcow2,format=qcow2 --import
>
>
>    [1]
https://github.com/kashyapc/virt-scripts/blob/master/create-guest-qcow2.bash
>>
>>
>> Impossible de terminer l'installation : « Unable to create vcpu
cgroup for
>> fedora20(vcpu: 0): Aucun fichier ou dossier de ce type »
>>
>> Traceback (most recent call last):
>> File "/usr/share/virt-manager/virtManager/asyncjob.py", line
91, in
>> cb_wrapper
>> callback(asyncjob, *args, **kwargs)
>> File "/usr/share/virt-manager/virtManager/create.py", line
1787, in
>> do_install
>> guest.start_install(meter=meter)
>> 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: Unable to create vcpu cgroup for fedora20(vcpu: 0): Aucun
>> fichier ou dossier de ce type
>>
>>
>> I saw that there is no cpu mounted, only cpuacct.
>>
>> I saw on other server that cpu is a link to cpu,cpuacct
>>
>> But I can't find how to add this in a config file
>>
>> Thanks for help
>> Patrick
>>
>> _______________________________________________
>> libvirt-users mailing list
>> libvirt-users@redhat.com
>> https://www.redhat.com/mailman/listinfo/libvirt-users

Kashyap Chamarthy

2014-Jun-15 06:51 UTC

head link

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

On Sun, Jun 15, 2014 at 09:01:29AM +0300, Patrick Chemla wrote:

[. . .]
> When trying to create a new VM using virt-manager I am getting :
> 
> Impossible de terminer l'installation : « internal error: process
exited
> while connecting to monitor: Failed to create chardev
>  »
> 
> Traceback (most recent call last):
>   File "/usr/share/virt-manager/virtManager/asyncjob.py", line
91, in
> cb_wrapper
>     callback(asyncjob, *args, **kwargs)
>   File "/usr/share/virt-manager/virtManager/create.py", line
1787, in
> do_install
>     guest.start_install(meter=meter)
>   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
> 
> 
> When tyring to create new VM with virt-install, I am getting:
> 
> virt-install --name eff1 --disk /home/kvmimages/eff1.img  --cdrom
> /home/kvmimages/Fedora-20-x86_64-DVD.iso --memory 4096B
> ERROR    Error: --memory 4096B: invalid literal for int() with base 10:
> '4096B'
This is an invalid invocation.
> [root@eff1 kvmimages]# virt-install --name eff1 --disk
> /home/kvmimages/eff1.img  --cdrom /home/kvmimages/Fedora-20-x86_64-DVD.iso
> --memory 4096
> 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
I just tested on my Fedora-20 machine, trying to boot a Fedora-19 VM it
works for me:


    $ qemu-img create -f qcow2 -o preallocation=metadata \
      /export/vmimages/f19vm 4G

    $ virt-install --name f19vm --disk /export/vmimages/f19vm \
      --cdrom /export/Fedora-Live-Desktop-x86_64-19-1.iso \
      --memory 2048
    
    Starting install...
    Creating domain...
    .
    .
    .

 
But, I should mention that I'm using virt packages from Rawhide:

    $ rpm -q virt-install libvirt-daemon-kvm qemu-system-x86
    virt-install-1.0.1-3.fc21.noarch
    libvirt-daemon-kvm-1.2.6-1.fc20.x86_64
    qemu-system-x86-2.0.0-1.fc21.x86_64
> When trying to run with virt-manager a VM created on another F20 server:
> 
> Erreur lors du démarrage du domaine: internal error: process exited while
> connecting to monitor: Failed to create chardev
> 
> 
> Traceback (most recent call last):
>   File "/usr/share/virt-manager/virtManager/asyncjob.py", line
91, in
> cb_wrapper
>     callback(asyncjob, *args, **kwargs)
>   File "/usr/share/virt-manager/virtManager/asyncjob.py", line
127, in tmpcb
>     callback(*args, **kwargs)
>   File "/usr/share/virt-manager/virtManager/domain.py", line
1355, in
> startup
>     self._backend.create()
>   File "/usr/lib64/python2.7/site-packages/libvirt.py", line 708,
in create
>     if ret == -1: raise libvirtError ('virDomainCreate() failed',
dom=self)
> libvirtError: internal error: process exited while connecting to monitor:
> Failed to create chardev
> 
> 
> What is this chardev error?
Ensure you have correct permissions to allow QEMU to access disk images
in your $HOME directory:

    $ chmod o+rx $HOME

I guess that should resolve it.

-- 
/kashyap

Patrick Chemla

2014-Jun-15 07:27 UTC

head link

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

Hi,

Thanks Kashyap for your answer.

I am trying to give more data:

virt-install invokation:

# virt-install --name eff1 --disk /home/kvmimages/eff1.img  --cdrom 
/home/kvmimages/Fedora-20-x86_64-DVD.iso --memory 4096
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

Rpm: infos
# rpm -q virt-install libvirt-daemon-kvm qemu-system-x86
virt-install-1.0.1-3.fc20.noarch
libvirt-daemon-kvm-1.1.3.5-2.fc20.x86_64
qemu-system-x86-1.6.2-6.fc20.x86_64

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?

I am connected as root on my remote server, as simple user on my local 
computer. Both are running F20.

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.

Thanks for your help.

Patrick



Le 15/06/2014 09:51, Kashyap Chamarthy a écrit :> On Sun, Jun 15, 2014 at 09:01:29AM +0300, Patrick Chemla wrote:
>
> [. . .]
>
>> When trying to create a new VM using virt-manager I am getting :
>>
>> Impossible de terminer l'installation : « internal error: process
exited
>> while connecting to monitor: Failed to create chardev
>>   »
>>
>> Traceback (most recent call last):
>>    File "/usr/share/virt-manager/virtManager/asyncjob.py",
line 91, in
>> cb_wrapper
>>      callback(asyncjob, *args, **kwargs)
>>    File "/usr/share/virt-manager/virtManager/create.py", line
1787, in
>> do_install
>>      guest.start_install(meter=meter)
>>    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
>>
>>
>> When tyring to create new VM with virt-install, I am getting:
>>
>> virt-install --name eff1 --disk /home/kvmimages/eff1.img  --cdrom
>> /home/kvmimages/Fedora-20-x86_64-DVD.iso --memory 4096B
>> ERROR    Error: --memory 4096B: invalid literal for int() with base 10:
>> '4096B'
> This is an invalid invocation.
>
>> [root@eff1 kvmimages]# virt-install --name eff1 --disk
>> /home/kvmimages/eff1.img  --cdrom
/home/kvmimages/Fedora-20-x86_64-DVD.iso
>> --memory 4096
>> 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
> I just tested on my Fedora-20 machine, trying to boot a Fedora-19 VM it
> works for me:
>
>
>      $ qemu-img create -f qcow2 -o preallocation=metadata \
>        /export/vmimages/f19vm 4G
>
>      $ virt-install --name f19vm --disk /export/vmimages/f19vm \
>        --cdrom /export/Fedora-Live-Desktop-x86_64-19-1.iso \
>        --memory 2048
>      
>      Starting install...
>      Creating domain...
>      .
>      .
>      .
>
>   
> But, I should mention that I'm using virt packages from Rawhide:
>
>      $ rpm -q virt-install libvirt-daemon-kvm qemu-system-x86
>      virt-install-1.0.1-3.fc21.noarch
>      libvirt-daemon-kvm-1.2.6-1.fc20.x86_64
>      qemu-system-x86-2.0.0-1.fc21.x86_64
>
>> When trying to run with virt-manager a VM created on another F20
server:
>>
>> Erreur lors du démarrage du domaine: internal error: process exited
while
>> connecting to monitor: Failed to create chardev
>>
>>
>> Traceback (most recent call last):
>>    File "/usr/share/virt-manager/virtManager/asyncjob.py",
line 91, in
>> cb_wrapper
>>      callback(asyncjob, *args, **kwargs)
>>    File "/usr/share/virt-manager/virtManager/asyncjob.py",
line 127, in tmpcb
>>      callback(*args, **kwargs)
>>    File "/usr/share/virt-manager/virtManager/domain.py", line
1355, in
>> startup
>>      self._backend.create()
>>    File "/usr/lib64/python2.7/site-packages/libvirt.py", line
708, in create
>>      if ret == -1: raise libvirtError ('virDomainCreate()
failed', dom=self)
>> libvirtError: internal error: process exited while connecting to
monitor:
>> Failed to create chardev
>>
>>
>> What is this chardev error?
> Ensure you have correct permissions to allow QEMU to access disk images
> in your $HOME directory:
>
>      $ chmod o+rx $HOME
>
> I guess that should resolve it.
>

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