There is small utility available in the installation media named prereqchk.exe which help us to find out the readiness details on the site server or remote site server. Make sure to use this utility from the same version of configuration manager which would be used to install site. It identifies and fix the issues which may cause site installation to fail.
It is not mandatory to run this utility before site installation, as at the time of installation it runs by default, but it is best practice to run this before site installation to fix any issues avoid any roadblock.
Up on starting this utility it first checks for any site is already exist and if yes, then it checks for upgrade reediness. And if it does not find any site then it performs all required checks.
It records all the information in the log file name ConfigMgrPrereq.log under root drive.
There are some commands line option which can be used to perform the readiness according to the site or site systems role we are going to install.
Here we see some command line options with their purpose in brief:
/CAS
This verifies the local computer meets all requirement for installing Central Administration Site server.
/MP
This verifies the local computer meets all requirement installing site systems role of Management point.
/DP (FQDN of Computer)
This verifies the local computer meets all requirement installing site systems role of Distribution point.
/SQL (FQDN of Computer)
This verifies the local computer meets all requirement to install SQL to host site database.
/PRI
This verifies the local computer meets all requirement for installing Primary Site server.
/INSTALLSQLEXPRESS
This verifies the local computer meets all requirement for installing SQL Server Express.
Note: This application or utility can be found in Configuration Manager Installation Media\SMSSETUP\BIN\X64 or Configuration Manager Installation Path\BIN\X64
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