Lentes, Bernd
2020-Sep-20 11:09 UTC
can't define domain - error: cannot open /dev/null: Operation not permitted
Hi, 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. On the other node domains are defined and started without problems. 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
Martin Kletzander
2020-Sep-21 08:01 UTC
Re: can't define domain - error: cannot open /dev/null: Operation not permitted
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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