The prerequisite checks ensure that the minimum system requirements to carry out the installation are met.
If you click Check Again, then you can run the prerequisite check again to see if the minimum requirements are met to carry on with the database installation.
Click Fix & Check Again, if you want the installer to fix the problem and check the system requirements again.
Note: The Fix & Check Again option generates a script (UNIX only) that sets some of the system parameters to Oracle-recommended values. You need to run the script as the root user. Oracle recommends that you do not modify the contents of this script.
From the list, select one of the following options:
Show Failed: To get a failed prerequirements list.
Show All: To get a list of all the prerequirement checks run.
Show Succeeded: To get a list of the prerequirement checks that were successful.
Note: You can check Ignore All to ignore all the errors and proceed with the database installation.