That doesn't look good... After stopping and starting EBS by using adstpall.sh and adstrtall.sh step adapcctl.sh showed an error:
--> Process (index=1,uid=1191665904,pid=28020)
failed to start a managed process after the maximum retry limit
And at HTTP_Server~1.log:
/opt/oracle/VIS/apps/tech_st/10.1.3/Apache/Apache/bin/httpd: error while loading shared libraries: libdb.so.2: cannot open shared object file: No such file or directory
On metalink there is a note (879522.1) to create a symbolic link to libgdbm.so.2.0.0: ln -s /usr/lib/libgdbm.so.2.0.0 /usr/lib/libdb.so.2
But after double checking note 761566.1, at the Other Requirements section, there is small note:
Download and apply the patch 6078836 from My Oracle Support to fix an issue with the Oracle HTTP Server (missing libdb.so.2) bundled with the
E-Business Suite technology stack.
Note that this patch (which includes a required operating system library) must be applied before installing Oracle E-Business Suite.
EBS went smooth after installing this small patch.