Installation of SYMCnbclt is failing while creating SRT, saying pkgadd: ERROR: cannot find sadm directory.

Master Server:Solaris X86_10

Netbackup version 7.6.0.4

Boot Server:Solaris 10 Sparc
Oracle Solaris 10 8/11 s10s_u10wos_17b SPARC
SunOS <boot server> 5.10 Generic_150400-10 sun4u sparc SUNW,SPARC-Enterprise

Client :Solaris 10 Sparc

Patch level same as boot server

While creating SRT on Boot server, following issue is seen. Any help would be appreciated. 

Checking for pre-existing SYMCnbclt package.
Installing SYMCnbclt package.

ERROR: Failed to install SYMCnbclt on <boot server>.
Cannot complete the install.
Aborting...


========== Unpacking package ==========
x SYMCnbclt.pkg, 504479232 bytes, 985311 tape blocks
x .pkg_defaults, 184 bytes, 1 tape blocks

== Checking for pre-existing package ==
package SYMCnbclt is not installed

========= Installing package ==========

Processing package instance <SYMCnbclt> from </tmp/nb_pkg/SYMCnbclt.pkg>

NetBackup Client(sparc) 7.6.0.4
## Executing checkinstall script.
Copyright 1993 - 2014 Symantec Corporation, All Rights Reserved.
pkgadd: ERROR: cannot find sadm directory

A failure was detected running /tmp/bmrsrtadm.21519.mnt/NBClients/anb/Clients/usr/openv/netbackup/client/Solaris/Solaris10/cp_to_client <master server> <boot server> /tmp/install_trace.2941


File /tmp/install_trace.2941 contains a trace of this install.
That file can be deleted after you are sure the install was successful.
[Error] V-125-346 NBU Client install script did not run successfully
[Error] V-125-447 Unable to install Symantec NetBackup Client software into the SRT.
Do you want to retry install of Symantec NetBackup Client? (y/n) [y] :

In some of the posts, they were referring to umask, in this case its fine on all the three servers.

# umask
0022

Also, I do not see this file /tmp/install_trace.2941 to look at what is going wrong.

Thanks in advance.