Technology Errors

pfSense Install Package Could Not Unlink

Recently received a 1U IPSU NetGate ALIX Single to perform some testing with pfSense on this type of platform. I was looking for a way to track the device and hoping to use DMI information so needed to first install dmidecode. Anyhow ran into a couple issues which are noted below along with resolutions for those issues.

Technology Insights

Upgrade Dell PE2650 BIOS On A Server Running CentOS Linux

The other day I had attempted to use the Dell Linux BIOS upgrade utility on a Dell Poweredge 650 server however it wouldn’t run properly under CentOS Linux but I decided to give it another shot on a Dell Poweredge 2650 and this time it worked without issue. Below there are steps on how to upgrade the BIOS on a Dell PE2650 using the Linux BIOS .bin upgrade application from Dell.

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Obtain Dell Express Service Code & Dell Service Tag From Dell Server Running Linux

I wrote a previous article about obtaining the BIOS version on a Dell Poweredge 650 server which had the end goal of updating the BIOS version on the server if a new BIOS version was available. So after obtaining the BIOS version of the Poweredge 650 server I needed the Dell Service Tag from the server so I could use Dell’s web site to see if a new BIOS version was available. Below is information on how to obtain the Dell Service Tag as well as the Dell Express Service code for the server if it is running a Linux operating system.

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Dell Poweredge 650: Determine BIOS Version From Linux

I have a development server, which is a Dell Poweredge 650, running CentOS Linux that is used for testing PostgreSQL database replication via log shipping and recently the server has been crashing after only running for a couple hours from a kernel panic. One of the things I wanted to verify is if there is a new BIOS version available but first needed to verify the current BIOS version installed. Below is information on how to determine what BIOS version a Linux server is using while the server is running.

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Find The Ram Speed in Linux from a CLI Shell

Here is the next in my series of posts as I tweak the new tools server to reach its full potential. I recently added a Intel i7 965 Extreme chip to the server and I am trying to get all the kinks ironed out. One thing I suspect is that the ram is not operating at its full potential. Both the ram and the chip list that they are capable of reaching a 1600 MHz speed so I want to get them running at that speed. Normally these things are fairly easy in Windows where we have a GUI and all kinds of fancy oveclockers tools but as you know from previous articles this server is a extreme definition of hybrid and it also runs a server version of Cent OS so we have no GUI. This has brought me to discover many new and interesting Linux CLI tools. Today I will show two different ways to check your ram speed and also get some other useful information.