Queries related to changes in EMS 8.5+ version installation :
1) Why is the configuration directory absent?
2)Why is the TIBCO Universal Installer absent?
3) What if I cannot / do not want to run yum  ("yum install -y rpm/*.rpm") or zypper to install EMS on Linux?
4)How to change the default installation location?
5)On Linux and macOS, which tar.gz packages to use for server only or client only installations?
6)The installation log is not stored to disk anymore? If it is, where can I find it?
7)How about Linux installer for installation log file?
8)Why the C:\Users\user-name\.TIBCOEnvInfo\_envInfo.xml was not updated with the new EMS information?
9)Can I run old Universal Installer to remove files in TIBCO HOME?
10)Does the concept of TIBCO_HOME does not apply anymore for EMS?
11)With EMS 8.5 native installer on Linux, macOS or Windows, Does  all the folders inside my present EMS HOME folder are now not in use, except for the new D:\Tibco\EMS\ems\8.5 folder?

Some of changes and queries related to EMS 8.5.

ALL

Question 1. Why is the configuration directory absent?

=>EMS 8.5 native installers (on Windows, Linux, and macOS) do not support the TIBCO_HOME nor the configuration directory. Customers that need configuration file examples can use those provided under C:\tibco\ems\8.5\samples\config as documented in the 'Starting the EMS Server Using a Sample Configuration' section on page 91 of the EMS 8.5 User’s Guide.
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Question 2. Why is the TIBCO Universal Installer absent?

=>Starting with EMS 8.5.0, on Linux, macOS, and Windows, EMS no longer relies on the Universal Installer. On those platforms, it uses natives installers or compressed archives.In the new TIB_ems_8.5.0_linux_x86_64.zip archive there are ONLY rpm and tar files (the "TIBCO Universal Installer" is not present) Refer to the EMS 8.5 installation guide. However ,the Universal installer is still available on other platforms such as Solaris.
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Question 3. What if I cannot / do not want to run yum  ("yum install -y rpm/*.rpm") or zypper to install EMS on Linux?

=>In that case you can use tar.gz files, as documented in the 'Other Linux variants' table entry in the EMS Installation book.
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Question 4. What if the default installation location (/opt/tibco on Linux and macOS and C:\tibco\ems\8.5 on Windows) doesn't suit my needs?

=>There are four options you can go with:
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4.1) On Linux and macOS, refer to the 'Other Linux variants' table entry in the EMS Installation book, uncompress the tar.gz files into a temporary location and move the EMS 8.5 files to the desired location:

for f in tar/*; do tar -xvf $f; done

mv opt/tibco/ems target_installation_folder
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4.2) Instead, you could install EMS as root and then switch the ownership of the EMS software directories to match the required account and/or move those directories as needed.
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4.3) On Linux, you can install using the --prefix command as shown below (for each .rpm package):

rpm --prefix <tibco_home>/ems/8.5 -ivh <package_name>.rpm

The --prefix option lets you specify the location of the installation directory. It is called --prefix because it lets you give the prefix that appears in the paths to each of the directories where files from the program or library that you are building are to be installed.
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4.4) On Windows, you can use the following command to install EMS in silent mode and specify the installation location:

TIB_ems_8.5.0_win_x86_64.exe /S /D=target_installation_folder

For example:

TIB_ems_8.5.0_win_x86_64.exe /S /D=C:\tibco\ems
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Question 5. On Linux and macOS, which tar.gz packages to use for server only or client only installations?

=>Extract the TIBCO EMS archive to a temporary directory. For example:

Community Edition: unzip TIB_ems-ce_8.5.1_linux_x86_64.zip
Enterprise   Edition: unzip TIB_ems_8.5.1_linux_x86_64.zip

This will place installation rpm and tar.gz files in a temporary directory called TIB_ems_8.5.1, within the current directory.

#For Server Only installation, install the following files:

- TIB_ems_8.5.1_linux_x86_64-central_administration.tar.gz

- TIB_ems_8.5.1_linux_x86_64-server.tar.gz

- TIB_ems_8.5.1_linux_x86_64-thirdparty.tar.gz

 
#For Client Only installation, install the following files:

- TIB_ems_8.5.1_linux_x86_64-c_dev_kit.tar.gz

- TIB_ems_8.5.1_linux_x86_64-c_dotnet_client.tar.gz

- TIB_ems_8.5.1_linux_x86_64-java_client.tar.gz

- TIB_ems_8.5.1_linux_x86_64-thirdparty.tar.gz

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Question 6. Previously, the installation logs has always been put in the folder C:\Users\user-name\.TIBCO\, but I can not see any installation log file for EMS 8.5.1.  Is it true that the installation log is not stored to disk anymore? If it is, where can I find it?

=>The Windows native installer of EMS 8.5 does not output an installation log file. If you would like to preserve a trace of the installation process, you can click on 'Show details' at the end of a GUI-based installation, right-click in the central panel to show and select the 'Copy Details To Clipboard' dropdown menu, and paste the output to a file of your choice.
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Question 7. How about Linux installer for installation log file?
 
=>If installing rpm packages, please refer to the documentation of your rpm installation tool (e.g. yum or zypper). If installing tar.gz packages, you could simply redirect the installation set of commands into a log file.
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Question 8. We also noticed that the C:\Users\user-name\.TIBCOEnvInfo\_envInfo.xml was not updated with the new EMS information.
 
=>In the context of EMS, the Universal Installer files are mainly used to signal to other TIBCO products that EMS is present. If you are upgrading to EMS 8.5.x from an earlier version of EMS, there is no need to update any Universal Installer file since EMS is already marked as present.
 
If you are setting up a new installation from scratch on Linux, macOS or Windows, you should install EMS 8.5.1 first, apply EMS 8.5.1-HF01, which creates the Universal Installer file necessary, and then install other TIBCO products that rely on EMS.
 
If EMS 8.5 is not meant to be installed in the same TIBCO_HOME as other TIBCO products then the post-install.bat script provided in EMS 8.5.1-HF01 is irrelevant. 
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Question 9:  Can I run the 'old' D:\Tibco\Homes\EMS\tools\universal_installer\TIBCOUniversalInstaller-x86-64.exe file to clean up the TIBCO_HOME so that all the files that now are not in use are removed?

=>Yes.
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Question 10: With EMS 8.5 native installer on Linux, macOS or Windows, Does the concept of TIBCO_HOME does not apply anymore for EMS?

=>Yes, the concept of TIBCO Universal Installer TIBCO_HOME does not apply to EMS anymore, although only on Linux, macOS and Windows at this point. This is documented in detail in the EMS 8.5 Installation book.
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Question 11: With EMS 8.5 native installer on Linux, macOS or Windows, Does  all the folders inside my present EMS HOME folder are now not in use, except for the new D:\Tibco\EMS\ems\8.5 folder? See attached ems_folder_structure.png.
 
=>"Yes, your C:\tibco\"ems\8.5 folder holds all of the TIBCO EMS 8.5.1 artifacts and these don't depend on anything else. "
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