During the prerequisite checks in EBS 12.2 installation, you may encounter the following problem ..
"not able to run DB installer. check staging area.."
I checked the permission of staging area it's full permission then I run the database installation script under below directory. Actually, it was swap space problem..So I added swap space and resolved this issue.
/ora/12stage/TechInstallMedia/database/database
[oracle@oraebs1 database]$ ./runInstaller
Starting Oracle Universal Installer...
Checking Temp space: must be greater than 500 MB. Actual 4136 MB Passed
Checking swap space: 0 MB available, 150 MB required. Failed <<<<
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]
User Selected: No
Exiting Oracle Universal Installer, log for this session can be found at /ora/oracle/oraInventory/logs/installActions2018-06-17_06-45-10PM.log
[oracle@oraebs1 database]$
[oracle@oraebs1 database]$
[oracle@oraebs1 database]$
[root@oraebs1 ~]# dd if=/dev/zero of=/swapfile bs=1024 count=5242880
5242880+0 records in
5242880+0 records out
5368709120 bytes (5.4 GB) copied, 54.3324 s, 98.8 MB/s
[root@oraebs1 ~]#
[root@oraebs1 ~]#
[root@oraebs1 ~]# sudo mkswap /swapfile
mkswap: /swapfile: warning: don't erase bootbits sectors
on whole disk. Use -f to force.
Setting up swapspace version 1, size = 5242876 KiB
no label, UUID=1dd8f97c-bf63-4437-a393-90deb23c29c4
[root@oraebs1 ~]#
[root@oraebs1 ~]# sudo swapon /swapfile
[root@oraebs1 ~]#
[root@oraebs1 ~]#
[root@oraebs1 ~]# sudo vi /etc/fstab
[root@oraebs1 ~]#
[root@oraebs1 ~]# cat /proc/swaps
Filename Type Size Used Priority
/swapfile file 5242872 0 -1
[root@oraebs1 ~]# swapon -s
Filename Type Size Used Priority
/swapfile file 5242872 0 -1
[root@oraebs1 ~]#
[oracle@oraebs1 database]$ ./runInstaller
Starting Oracle Universal Installer...
Checking Temp space: must be greater than 500 MB. Actual 16626 MB Passed
Checking swap space: must be greater than 150 MB. Actual 5119 MB Passed
Checking monitor: must be configured to display at least 256 colors
Some requirement checks failed. You must fulfill these requirements before
continuing with the installation,
Continue? (y/n) [n]
