Unable to install NBU client on Solaris 11.3 Unpacking VRTSnbclt package

[WikiDonor]

Hello 

We are trying to install nbu 8.1.1 client on a Solaris 11.3 and the install is getting stuck as per below details. 

Starting NetBackup Deduplication installer
testing: /tmp/pdde_pkg_dir_29067
NetBackup Deduplication preinstall check passed
Saving pack history as /usr/openv/pack.
Installing VRTSnbpck ...
Unpacking VRTSnbpck package.
Jun  6 17:03:32 servername sendmail[29188]: [ID 702911 mail.alert] unable to qualify my own domain name (servername) -- using short name
Installation of VRTSnbpck was successful. Check /tmp/install_VRTSnbpck.pkg_trace.29054 for details.
Installing VRTSpbx ...
Unpacking VRTSpbx package.
Jun  6 17:05:02 servername sendmail[29515]: [ID 702911 mail.alert] unable to qualify my own domain name (servername) -- using short name
Installation of VRTSpbx was successful. Check /tmp/install_VRTSpbx.pkg_trace.29054 for details.
Installing VRTSnbclt ...
Unpacking VRTSnbclt package.

I tried to use a different installation media but still same. Also tried to use nbu 8.1setup and same thing. 

Please suggest and thank you in advance.

[Genericus]

check your /etc/hosts file

make sure you have your system as fully qualified and shortname as well as loopback

127.0.0.1 localhost loghost

###.###.###.### system.domain system