[ovirt-users] Problem installing hosted engine on CentOS 7 host

[Justin Clacherty]

Hi,

I'm just trying to set up ovirt 3.5 for testing and am unable to get hosted engine installed.  The problem appears to be something to do with multipath iscsi setup.  I run 'hosted-engine --deploy' and answer all the questions.  See the config preview below.

          --== CONFIGURATION PREVIEW ==--

          Engine FQDN                                          : ovirt.domain.local
          Bridge name                                           : ovirtmgmt
          SSH daemon port                                 : 22
          Firewall manager                                  : iptables
          Gateway address                                 : 192.168.42.254
          Host name for web application      : hosted_engine
          iSCSI Target Name                               : iqn.2014-10.storage.domain.san0:iscsi0
          iSCSI Portal port                                    : 3260
          Host ID                                                     : 1
          iSCSI LUN ID                                           : 0
          Image size GB                                       : 25
          iSCSI Portal IP Address                      : 10.50.0.200
          iSCSI Portal user                                  : myuser
          Console type                                        : vnc
          Memory size MB                                : 4096
          MAC address                                       : 00:16:3e:23:b4:c2
          Boot type                                              : cdrom
          Number of CPUs                                : 2
          ISO image (for cdrom boot)          : /tmp/CentOS-7.0-1406-x86_64-DVD.iso
          CPU Type                                              : model_Nehalem

At the iscsi target question it shows both target names (for each of the multipath options) but you only seem to be able to choose one.  After confirming the settings above I get the following.

[ INFO  ] Generating answer file '/etc/ovirt-hosted-engine/answers.conf'
[ INFO  ] Stage: Transaction setup
[ INFO  ] Stage: Misc configuration
[ INFO  ] Stage: Package installation
[ INFO  ] Stage: Misc configuration
[ INFO  ] Configuring libvirt
[ INFO  ] Configuring VDSM
[ INFO  ] Starting vdsmd
[ INFO  ] Waiting for VDSM hardware info
[ INFO  ] Creating Volume Group
[ ERROR ] Failed to execute stage 'Misc configuration': Failed to initialize physical device: ("['/dev/mapper/36001405fbaac4f30dd647b083c6a0116']",)
[ INFO  ] Stage: Clean up
[ INFO  ] Generating answer file '/etc/ovirt-hosted-engine/answers.conf'
[ INFO  ] Answer file '/etc/ovirt-hosted-engine/answers.conf' has been updated
[ INFO  ] Stage: Pre-termination
[ INFO  ] Stage: Termination

The /dev/mapper leads me to believe it's a multipath issue.  I noticed this Bugzilla entry when looking into the issue so it appears at least one other person is experiencing the same issue.

https://bugzilla.redhat.com/show_bug.cgi?id=1154353

Cheers,
Justin.