Oracle database 12c (12.2.0.1.0) step by step installation guide on oracle linux 7.6

Installation document :

Oracle Database 12.2.0.1.0 step by step installation guide on oracle linux 7.6

Issue faced:

[root@dbhost1 ~]# xhost +
access control disabled, clients can connect from any host
[root@dbhost1 ~]# su – oracle
Last login: Mon Jun 17 14:36:55 +03 2019 on pts/1
[oracle@dbhost1 ~]$ cd /u01/install/database/
[oracle@dbhost1 database]$ ./runInstaller
Starting Oracle Universal Installer…

Checking Temp space: must be greater than 500 MB. Actual 35971 MB Passed
Checking swap space: must be greater than 150 MB. Actual 2047 MB Passed
Checking monitor: must be configured to display at least 256 colors
>>> Could not execute auto check for display colors using command /usr/bin/xdpyinfo. Check if the DISPLAY variable is set. Failed <<<<

Some requirement checks failed. You must fulfill these requirements before

continuing with the installation,

Continue? (y/n) [n] n

User Selected: No

Exiting Oracle Universal Installer, log for this session can be found at /tmp/OraInstall2019-06-17_02-39-33PM/installActions2019-06-17_02-39-33PM.log

solution :

[oracle@dbhost1 database]$ export DISPLAY=:0
[oracle@dbhost1 database]$ ./runInstaller