Oracle Enterprise Linux 5 Update 4 available on ULN

Oracle Enterprise Linux 5 Update 4 has been added to Unbreakable Linux Network (ULN) Customers with Linux support from Oracle may download and install OEL 5.4 packages for i386 and x84_64 architectures. Itanium packages are coming soon. Also coming soon: OEL 5.4 on and installation media on

As for the rumors that OEL is based on CentOS? Only in a universe where time flows backward. Hint: Centos 5.3 was announced on April 3rd, 2009 and OEL 5.3 was announced on January 28th, 2009, more than two months earlier. We have no relationship with CentOS and do not rely on them.

Update:Installation media now available via


Thanks Sergio. Actually all OEL 5.x users are able to upgrade to 5.4 by using yum update. Regarding OEL and CentOS, the commonsense is that OEL is based on RHEL (or rebranded RHEL). Never heard anything like OEL is based on community maintained CentOS;-) I think it's a good idea to put a topic in the OEL FAQ on the homepage to avoid misleading customers.

Posted by Terry on September 16, 2009 at 02:48 PM PDT #

Hi The oracle enterprice is so reliable and suit my enviroment perfectly for tco

Posted by Oupa on September 17, 2009 at 04:33 PM PDT #

I use Fedora for my desktop but worry about security. I want to switch to Redhat but I keep hearing about Oracle. Is is good OS for daily desktop use?

Posted by Steve on September 20, 2009 at 01:13 AM PDT #

@Steve: With the Unbreakable Linux support program and the Oracle Enterprise Linux software, we focus on servers, not desktops. OEL is based on Red Hat Enterprise Linux Advanced Platform, which doesn't include productivity software such as Openoffice. We do provide some of these tools via Unbreakable Linux Network (ULN) for support customers. Sergio

Posted by Sergio on September 20, 2009 at 10:58 AM PDT #

Good news and I wanted to ask if after x86, x86_64 and now ia46 is there any plan for OEL s390x for IBM z or not? @Steve: I prefer Ubuntu as a desktop linux!

Posted by Mehdi on September 20, 2009 at 08:19 PM PDT #

@Mehdi: I'm not aware of any plans for OEL s390x. I'll send you an email to find out more about your needs. Sergio

Posted by Sergio on September 20, 2009 at 09:14 PM PDT #

I don't think that's fair to compare OEL and CentOS. Whether both are free to use, OEL is built by full-time paid development staff, this is not the case of CentOS. So what's the point to compare the date release between them ? Of course, CentOS has no chance to be the first, and don't want, since it is not a race. The usage and targeted customers also are differents, probably the shops which use CentOS are smaller and/or don't want to pay a support to get fixes (eventhough I have no stats) : since OEL and CentOS are based on same RHEL, then why pay (OEL bugs fixed) something you can have for free (CentOS bugs fixed) ? You should better to look for arguments for the RHEL clients (and other paid OS). The following link could be interesting to read : Nicolas.

Posted by Nicolas Gasparotto on October 02, 2009 at 07:04 PM PDT #

@Nicolas, I'm not comparing OEL to CentOS or suggesting there is any sort of race. I'm merely dispelling the rumor I've heard from several sources, that OEL is based on CentOS by pointing out that it is impossible based on the release dates of each. You are probably right that CentOS has a distinct customer base and that's great. This is one of the advantages of open source. Sergio

Posted by Sergio on October 03, 2009 at 02:48 AM PDT #

Hi All, I've downloaded Enterprise Linux Release 5 Update 4 Media Pack for x86_64 (64 bit) on DVD a number of times now. When unzipping, I continually receive a CRC error or something indicating that the archive is corrupt. I've been able to download and unzip the 32 bit version. Has anyone else experience this problem? Know the fix? Mark

Posted by Mark on October 05, 2009 at 09:24 AM PDT #

@Mark, I've seen a handful of reports like yours so far, but I don't believe there any conclusions yet. Can you review this thread on the OTN OEL forum and add details such as: -- O/S w/version -- Browser w/version -- Download Manager (if any) w/version -- Connection (wireless, DSL, LAN, ...) Also, where are you on the planet? Sergio

Posted by Sergio on October 05, 2009 at 09:45 AM PDT #

I use both centos and oel in my environment. The only reason to use oel were screams from all management and IT/oracle support than centos is not supported by Oracle. That's why OEL is for oracle db servers and centos is for everything else (coherence, weblogic etc servers) I do not see a big difference between both except that installation is less than pleasant with OEL and it took some time to figure out how to update packages etc.

Posted by Oleg on October 21, 2009 at 11:15 PM PDT #

@Oleg I'm curious why you say that "installation is less pleasant with OEL." Can you elaborate? Sergio

Posted by Sergio on October 21, 2009 at 11:51 PM PDT #

How do you install centos? Download iso file with wget, burn dvd (or mount for network installation) and proceed to installation. How do you install OEL? Login into edelivery site, go through several pages of lawyer's stuff, click button to download zip file. Forget using cli, have to have a graphical interface - pain. Since commonly used zip utility does not support more than 2GB files, you have to install a custom zip utility just to unzip iso file. This "oracle" zip utility is packed as well, more installation pain without reason. Installation is trouble free as it should be after you get iso file. I also got crc errors, I think because I used standard zip utility instead of oracle's one. I work with linux systems for 10 years or so and OEL has the most inconvenient way of delivering installation files. BTW I sit some 2500 miles away from production network, and production servers do not have graphical interfaces. It means I had to download iso file to my office desktop, then to production servers. It all takes a lot of time to transfer over office t1 line. Most of the problems will disappear when you stop archiving iso images. I bet it will not increase your Internet bandwidth bill. I also wish there will be an option to download file using a direct url. You can generate a temporary path to the file that will expire after certain time of inactivity easily if needed.

Posted by Oleg on October 22, 2009 at 12:31 AM PDT #

Sergio, We're running Oracle Financials on OEL 4. How do I upgrade it to OEL 5? Is there a ML Note that you can suggest? I've tried up2date, but it only does OEL 4 packages. Thanks, Eugene

Posted by Eugene on October 27, 2009 at 07:46 AM PDT #

@Eugene, While upgrading from, say, OEL4 update 4 to OEL4 update 8 is supported, there is no supported upgrade path from OEL4 to OEL5. We recommend a re-install. Sergio

Posted by Sergio on October 27, 2009 at 08:14 AM PDT #

Hello, I tried to download OEL 5 DVD couple of times from As the size of the file is 2.6GB, I lost internet connection in between and I received 403 error. Every time I tried to download, I failed. Country where I reside at the moment is not listed in oracle store's country list. So I am not sure what to do now? Any input is highly appreciable.

Posted by ponic on March 10, 2010 at 06:04 PM PST #

@ponic: Please contact Oracle E-Delivery Customer Service and describe your problem in detail. Sergio

Posted by Sergio on March 10, 2010 at 10:46 PM PST #

I am trying to install RAC on a windows 7 desktop. so I did install VMware 2.0.2 and started to create virtual machine on this VMware server. What I did is as following, from desktop/vmserver host/virtual machine/create virtual machine/type a name for this new vm/then it asked what OS you would install on this vm in the future/ I selected linux, then it asked for version of this Linux. the problem was I will use Oracle enterprise Linux 4 or 5 update 5 etc. so which version I should select from this pulldown list? it has ubuntu, Debian, suse, Red hat etc. I am a DBA, not familiar with these versions of Linux, please help. thank you very much. Robin

Posted by robin dong on November 14, 2010 at 12:07 PM PST #

I am trying to install oracle 10g on Linux Sabayon 5.4.. How can i install .exe files in Linux..... Do help me..

Posted by george fernandis on February 11, 2011 at 07:41 PM PST #

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