CentOS - Sep 2005 - install not recognizing RHEL

I am trying to install ArcServe 11 for Linux

[root at linserv1 cdrom]# ./install

Much license gibberish removed...

ENTER NO (N) TO HALT THE INSTALLATION PROCESS.

Please enter your choice:[Y|N] (default: N)Y

Do you want to view the installation notes? (y/n):(default: y) N

Cannot identify your Linux distribution or it is not yet supported.

[root at linserv1 cdrom]# cat /etc/issue
Red Hat Enterprise Linux ES release 3 (Taroon Update 5)
Kernel \r on an \m

[root at linserv1 cdrom]# cat /etc/issue.net
Red Hat Enterprise Linux ES release 3 (Taroon Update 5)
Kernel \r on an \m

[root at linserv1 cdrom]# uname -a
Linux linserv1.mullenpr.com 2.4.21-32.0.1.ELsmp #1 SMP Wed May 25
14:26:33 EDT 2005 i686 i686 i386 GNU/Linux

Any suggestions?

(this is a centOS 3.5 system)...

# cat /etc/issue.bak
CentOS release 3.5 (Final)
Kernel \r on an \m

Craig


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> [root at linserv1 cdrom]# cat /etc/issue
> Red Hat Enterprise Linux ES release 3 (Taroon Update 5)
> Kernel \r on an \m
> 
> [root at linserv1 cdrom]# cat /etc/issue.net
> Red Hat Enterprise Linux ES release 3 (Taroon Update 5)
> Kernel \r on an \m
> 
> [root at linserv1 cdrom]# uname -a
> Linux linserv1.mullenpr.com 2.4.21-32.0.1.ELsmp #1 SMP Wed May 25
> 14:26:33 EDT 2005 i686 i686 i386 GNU/Linux
> 
> Any suggestions?
> 
> (this is a centOS 3.5 system)...
> 
I've not installed arcserve, but this is what I've
done for others....

/etc/redhat-release

changed from...
CentOS release 3.5 (Final)

changed to...
Red Hat Enterprise Linux ES release 3 (taroon)