How to create an Oracle VirtualBox host-only network adapter in Windows 7

Yesterday I have downloaded Sample Application OVM for OBIEE 11.1.1.5 and while I was configuring SampleApp_V107 with Oracle VirtualBox, I have noticed VirtualBox host-only network adapter was not created. And I got below error message, when I add an VirtualBox host-only network adapter thru VirualBox console(GUI)

"Failed to create host-only network interface"

To solve this problem, I have to create an Oracle VirtualBox host-only network adapter with following steps

1. From Control Panel, Add New Hardware  (New network adapter)

2. Click Have Disk; (point it to C:\Program Files\Oracle\VirtualBox\drivers\network\netadp\VBoxNetAdp.inf)

3. Select VirtualBox Host-only Ethernet Adapter

4. OKay to install the unsigned driver

After completed instation, go to Oracle VM VirtualBox console and choose Preference network and add an VirturalBox host-only network adapter.

Again I have started SampleApp_V107 through OVM, its coming up without having any problem and working fine my OBIEE 11.1..5 sample applications

Cheers!!!

Error While Loading Shared Libraries: libdb.so.2 on RedHat Linux 5

After clonning (or installing) an Oracle Applications Release 12.0 or 12.1 instance on Linux 5, an error may occur while starting up the Apache service. The error would be this: 

You are running adapcctl.sh version 120.6.12000000.4
Starting OPMN managed Oracle HTTP Server (OHS) instance ...
adapcctl.sh: exiting with status 204


After review the HTTP log file. The error is very clear about the missing soft link. It would show this error:

/u01/apps/AJI_apps12/ora/10.1.3/Apache/Apache/bin/apachectl startssl: execing httpd
/u01/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

Soft link libdb.so.2 is missing.


To solve this issue, Shut down all Oracle Application Services

As root user, create a soft link as follows:
# ln -s /usr/lib/libgdbm.so.2.0.0 /usr/lib/libdb.so.2

Start up all Oracle Application Services

Cheers!!!