There was an issue, with IBM installation manager not able to install or start in RHEL 6.* series. This issue is fixed by IBM and is available in Fix central for download. The fix name is agent.installer.linux.gtk.x86_64_220.127.116.1120831_1216.
If you are using the old IBM installation manager, during install you may face errors like this.
[root@rhel64]# ./install bash: ./install: /lib/ld-linux.so.2: bad ELF interpreter: No such file or directory
Installation Manager is a 32-bit application and requires 32-bit versions of OS system libraries. These libraries are not installed on RHEL 6.0/6.1 x86_64 (64-bit) by default. You must install these 32-bit libraries on your system before you run Installation Manager.
Configure yum on your server, install the required 32bit binaries.
To configure yum on your server refer here http://www.technix.in/local-yum-setup-for-rhel/
after the yum configuration install the dependent 32bit binaries as shown below.
[root@localhost]# yum install gtk2.i686 [root@localhost]# yum install libXtst.i686 [root@localhost]# yum install compat-libstdc++
Once the install is complete. IBM installation manager installation can be proceeded as normal.