“Check if the DISPLAY variable is set” error – Installing Oracle Forms from a Mac

While installing Oracle Forms and Reports 11gR2 (  from a Mac (OS/x Mountain Lion) the following error occurred executing the runInstaller installation script:

$ ./runInstaller

Starting Oracle Universal Installer…
Checking Temp space: must be greater than 270 MB.   Actual 40478 MB    Passed
Checking swap space: must be greater than 500 MB.   Actual 4094 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. (more...)

Oracle VM

Oracle VM is now available for download.

You can read the news here.

Oracle VM Homepage.

11g on Windows (32-bit) is out!

Thanks to OTN Headlines. I’m downloading Oracle 11g for windows at this moment.

But only the client version, since all Oracle servers I managed runs on Linux.

With the Windows client, I will be able to use cool new features like errorlogging.

11g on Linux x86_64 is out!

This morning, I was surprised to learn that the Linux x86_64 announcement release was not in this Oracle New Downloads RSS Feed. I got aware of the news reading Niall Litchfield Blog. I guess news travels faster via the Oracle blog community! , also, I thought Oracle would have normally released 11g for other o/s prior to releasing the Linux x86_64 version. In any case, I will download this release now.

It is now available here: Oracle 11g on Linux x86_64.

I have been waiting for this release for a while since two of my databases are stuck to 32 (more...)

Oracle Validated Configuration RPM for OEL5

In the Oracle® Database Installation Guide for 11g there was a mention of Oracle Validated Configuration RPM.

When I first installed OEL5, the RPM’s for that o/s version were not yet released.

But since Oracle has now released the oracle-validated RPM’s for OEL5 on Unbreakable Linux Network. I decided to give it a try.

I installed OEL5 with the default installation. I then registered my machine with the up2date utility.

Do not forget to register to the proper channel on Unbreakable Linux Network or the following error will happen:

[root@oracletest ~]# up2date oracle-validated

Fetching Obsoletes list for channel: el5_i386_latest…

Fetching (more...)

Oracle 11g Documentation

Since reading the documentation is always a good idea when a new Oracle release is out, I decided to read Oracle® Database Upgrade Guide and the Oracle® Database New Features Guide before getting into the 11g installation guide.

It is funny how I haven’t yet downloaded the new Oracle 11g database and I am already using one of its new features!

Oracle 11g now enables users to send out comments, making it faster and easier to everyone to enhance the documentation.
This new feature have also been discussed here:
IT-eye Weblog
OTN TechBlog

While reading through the 2 guides, (more...)

Recovering Corrupted Data Blocks

Last Week, I experienced a kernel crash using Oracle on my Oracle Enterprise Linux 4 sandbox server. There was not a single reaction from the server, I had to reboot the box by pressing the reset button.
I happened to have a backup of this sandbox database, which gave me the opportunity to perform a media recovery.

The situation was that the undo Tablespace had a corrupt block.

Here is the alert log content:

Mon Aug 20 08:54:44 2007
SMON: enabling cache recovery
Mon Aug 20 08:54:45 2007
Errors in file /opt/oracle/app/oracle/admin/orcl/udump/orcl_ora_6733.trc:
ORA-01578: ORACLE data (more...)