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Fwd: can't define domain - error: cannot open /dev/null: Operation not permitted





Von: "Lentes, Bernd" <bernd lentes helmholtz-muenchen de>
Datum: 21. September 2020 um 18:38:48 MESZ
An: Martin Kletzander <mkletzan redhat com>
Betreff: Aw:  can't define domain - error: cannot open /dev/null: Operation not permitted

Hi Martin,

after configuring the logging and a restart of the service the problem dissapeared !?!

Bernd

Bernd Lentes

> Am 21.09.2020 um 10:02 schrieb Martin Kletzander <mkletzan redhat com>:
>
> On Sun, Sep 20, 2020 at 01:09:51PM +0200, Lentes, Bernd wrote:
>> Hi,
>>
>
> Hi, I'll start with the usual...
>
>> i have a two-node cluster running on SLES 12 with pacemaker.
>> The cluster refused to start the domains on one node.
>> So i took some of the domains out of the cluster and tried to start it manually.
>> This is what happened:
>>
>> virsh # define /mnt/share/vm_documents-oo.xml
>> error: Failed to define domain from /mnt/share/vm_documents-oo.xml
>> error: cannot open /dev/null: Operation not permitted
>>
>> Same with another domain.
>>
>
> What does the XML look like? What do the logs[0] say?
>
>> On the other node domains are defined and started without problems.
>
> Are the configs (libvirtd.conf and qemu.conf) the same on both nodes?
>
> Have a nice day,
> Martin
>
> [0] https://libvirt.org/kbase/debuglogs.html
>
>> Permissions on /dev and /dev/null are the same:
>>
>> ha-idg-1:/mnt/share # ll -d /dev
>> drwxr-xr-x 25 root root 5420 Sep 17 20:47 /dev
>> ha-idg-1:/mnt/share # ll /dev/null
>> crw-rw-rw- 1 root root 1, 3 Aug 24 14:39 /dev/null
>>
>> ha-idg-2:/mnt/share # ll -d /dev
>> drwxr-xr-x 25 root root 5340 Sep 9 10:31 /dev
>> ha-idg-2:/mnt/share # ll /dev/null
>> crw-rw-rw- 1 root root 1, 3 Aug 24 15:48 /dev/null
>>
>> ha-idg-1 is the one causing trouble.
>> Both systems SLES 12 SP4, same patchlevel.
>> livirt is:
>> ha-idg-1:/mnt/share # rpm -qa|grep -i libvirt
>> libvirt-daemon-driver-storage-iscsi-4.0.0-8.15.2.x86_64
>> libvirt-libs-4.0.0-8.15.2.x86_64
>> python-libvirt-python-4.0.0-2.34.x86_64
>> libvirt-daemon-driver-nwfilter-4.0.0-8.15.2.x86_64
>> libvirt-glib-1_0-0-0.2.1-1.2.x86_64
>> typelib-1_0-LibvirtGLib-1_0-0.2.1-1.2.x86_64
>> libvirt-admin-4.0.0-8.15.2.x86_64
>> libvirt-daemon-driver-storage-4.0.0-8.15.2.x86_64
>> libvirt-daemon-driver-storage-core-4.0.0-8.15.2.x86_64
>> libvirt-daemon-driver-storage-scsi-4.0.0-8.15.2.x86_64
>> libvirt-client-4.0.0-8.15.2.x86_64
>> libvirt-daemon-driver-nodedev-4.0.0-8.15.2.x86_64
>> libvirt-daemon-driver-storage-logical-4.0.0-8.15.2.x86_64
>> libvirt-daemon-driver-qemu-4.0.0-8.15.2.x86_64
>> libvirt-daemon-driver-secret-4.0.0-8.15.2.x86_64
>> libvirt-daemon-driver-storage-rbd-4.0.0-8.15.2.x86_64
>> libvirt-daemon-driver-interface-4.0.0-8.15.2.x86_64
>> libvirt-daemon-4.0.0-8.15.2.x86_64
>> libvirt-daemon-driver-network-4.0.0-8.15.2.x86_64
>> libvirt-daemon-driver-storage-mpath-4.0.0-8.15.2.x86_64
>> libvirt-daemon-qemu-4.0.0-8.15.2.x86_64
>> libvirt-daemon-config-network-4.0.0-8.15.2.x86_64
>> libvirt-daemon-driver-storage-disk-4.0.0-8.15.2.x86_64
>>
>> Any ideas ?
>> Maybe a restart would help, but it's Linux, not Windows ...
>> I'd like to understand what's going wrong.
>>
>> Thanks.
>>
>>
>> Bernd
>> --
>>
>> Bernd Lentes
>> Systemadministration
>> Institute for Metabolism and Cell Death (MCD)
>> Building 25 - office 122
>> HelmholtzZentrum München
>> bernd lentes helmholtz-muenchen de
>> phone: +49 89 3187 1241
>> phone: +49 89 3187 3827
>> fax: +49 89 3187 2294
>> http://www.helmholtz-muenchen.de/mcd
>>
>> stay healthy
>> Helmholtz Zentrum München
>>
>> Helmholtz Zentrum München
>>
>>
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