Disable any profiles that affect the login and root accounts. The installation and root accounts should have a "clean" login meaning that the login should be free of any special processing before a shell prompt is displayed.
Make sure you have write permissions for the $HOME and $HOME/BMCINSTALL directories.
Note
The installation utility supports only Bourne shells. A Korn shell, C shell, or Bash shell is acceptable, but these shell types are not supported and, on rare occasions, may cause intermittent issues during the installation; for example, the installation utility may be unable to access the root account to perform the installation. Installing from the root account causes issues with the operation of the utility. BMC recommends that you install from an account other than root.