Out of support This documentation supports the 8.1 version of BMC Atrium Single Sign-On, which is in "End of Version Support." However, the documentation is available for your convenience. You will not be able to leave comments.Click here to view the documentation for a supported version of Remedy Single Sign-On.

Resolving installation issues on LINUX operating system

You may face the following issues during installation of BMC Atrium Single Sign-On on the Red Hat Enterprise Linux computers.

Following topics are provided:

Installation failure due to missing libraries

If you are installing BMC Atrium Single Sign-On on Red Hat Enterprise Linux (RHEL) 6.x and the installer aborts suddenly, then the following 32-bit RPM packages must be installed to make 32-bit JRE support and the user interface available to the installer:

  • Glibc.i686
  • libXtst.i686

Installation failure due to low level of entropy

In computing, entropy is the considered as the randomness collected by an operating system or an application for use in cryptography or other uses that require random data. This randomness is often collected from hardware sources, either existing ones such as mouse movements or specially provided randomness generators. When the entropy level in an application decreases beyond a certain level, the linux operating systems running BMC Atrium Single Sign-On (SSO) installer may face the following issue.

During installation BMC Atrium Single Sign-On (SSO) logs the entropy level for maintenance purpose. For successful installation of BMC Atrium SSO, the entropy level should be substantially higher than 3000. If an installation or silent installation aborts suddenly, finishes very quickly, or takes a long time to complete, you may be facing low entropy issues. When the entropy level on the computers running BMC Atrium Single Sign-On installer is less than 3000, the installation fails with the following error message:

There is potential problem with performance on this computer. The level of entropy is 3000 and the random data generation time is 6 milliseconds. You may run the following command as root user: 'rngd -b -r /dev/urandom -o /dev/random' or prefer to restart the computer.

Info

You can verify the level of entropy at the following location on the linux computers using the following command: cat/proc/sys/kernel/random/entropy_avail.

Workaround

For restoring the level of entropy and installing BMC Atrium SSO, you can use any of the the following options:

  • Run the following commands as root user. This option is preferred as it helps in maintaining the entropy level after installation as well. If your server has a low entropy level, you should configure your server to run the following commands while starting up your server.

    rngd
    yum install rng-tools
    echo 'EXTRAOPTIONS="-i -o /dev/random -r /dev/urandom -t 10 -W 2048"'
    /etc/sysconfig/rngd
    chkconfig rngd on
    service rngd restart
  • Restart your computer. This option in not recommended and will increase the entropy level temporarily. This option can be used to identify if entropy is the only issue for installation failure.

 

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