Native installation requirements
In NetBackup 8.2, a change was made to initial installs such that the answer file is now required. This change may have some negative effect on users who want to use the native packages to create VM templates or otherwise install the NetBackup packages without configuring the product. On Linux, one possible way of obtaining the previous behavior is with the - noscripts option of the RPM Package Manager. Providing this option when installing the VRTSnbpck package avoids the configuration steps. This option does not need to be provided when you install other packages. The answer file must still exist, but the only value that must be provided is the role of the machine, either a client or a media server. For example:
echo "MACHINE_ROLE=CLIENT" > /tmp/NBInstallAnswer.conf rpm -U --noscripts VRTSnbpck.rpm rpm -U VRTSpbx.rpm VRTSnbclt.rpm VRTSpddea.rpm