Getting error while updating client through update_client script

Hello Everyone,

 

While updating linux. clients to 7.6.0.1 from 7.1 , i am getting below error:

Checking for SYMCpddea package...
   Package SYMCpddea found.

NetBackup Deduplication software is installed.

NetBackup Deduplication is not yet configured.

ERROR:   Detected an attempt to install incorrect platform and/or
         operating system and version client binaries on xxxxx.

client_config_failed

INF OTHER - EXIT STATUS = 1
EXIT STATUS = 1

We have below client binaries available on media server:

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bash-4.1$ ls /usr/openv/netbackup/client/Linux
Debian2.6.18  IBMpSeriesRedHat2.6  IBMpSeriesSuSE2.6  IBMzSeriesRedHat2.6.18  IBMzSeriesSuSE2.6.16  RedHat2.6.18  SuSE2.6.16

bash-4.1$ cd RedHat2.6.18
bash-4.1$ ls
client_bin.tar.gz  cp_to_client  ftp_to_client   installpbx  nbcheck         nbj.conf    pddeagent.tar.gz  sftp_to_client  tar
client_config      extract_java  install_client  JRE.tar.gz  NB-Java.tar.gz  PBX.tar.gz  pdinstall         ssh_to_client   version
bash-4.1$ cat version
NetBackup-RedHat2.6.18 7.6.0.1

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i have created a test_update file with below entries.

bash-4.1$ cat /tmp/test_update
Linux   RedHat2.6.18  xxxxx

This is uname o/p of the client

bash-3.00$ uname -a
Linux xxxxx 2.6.9-106.ELsmp #1 SMP Tue Dec 16 11:23:56 EST 2014 x86_64 x86_64 x86_64 GNU/Linux

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Please let me know how can i proceed fot the update