Linux

VMware – No volume groups found

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I recently P2V’d several RHEL and RHAS servers which failed to boot when powered on. They would begin booting and then report “No volume groups found” and “Kernel panic – not syncing: Attempted to kill init!”. After a lot of searching, I found the following link with the key information: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1002402 Resolution steps: Boot the […]

Linux

Cannot power on Red Hat in VMware

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I have a Red Hat system that I was recovering from backup into our VMware environment, but couldnt get it to power on properly. I tried everything I could to get it working, but as soon as I turned it on, GRUB would load and display Booting the kernelthen the system would power off. I […]

Linux

Identifying a disk bottleneck in Linux

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One of my DBAs simply asked for a virtual machine with 350GB disk space. Since he stated this was a “jump box” for accessing the other Oracle DB servers, I didnt think anything of it and simply built out a linux system with the appropriate space. It wasnt until a few days later that they […]

Linux

Converting DVDs to DIVX files under Linux

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I recently purchased an Iomega ScreenPlay device that allows me to copy a DVD to USB drive and then play it to my TV. Using a 500GB USB then allows me to access most of my DVD library without having to hunt for disks. However, I am not running in High Definition, I am not […]

Linux

Configuring VNC to auto-start

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http://www.walkernews.net/2008/06/20/configure-vnc-server-to-auto-start-up-in-red-hat-linux/ How to auto start VNC server in Red Hat Linux after system reboot? My testing environment is a machine running on Red Hat Enterprise Linux 4 Update 4, with the bundled VNC Server (i.e. vnc-server-4.0-8.1). Also assume that a Linux user account called “walker” needs the VNC server to start up automatically when Linux […]

Linux

Running Office 2007 in Ubuntu

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MS Office 2007 is the best in the world, and nobody (even openoffice) has come close to functionality of it. Now it looks like we can run it in Ubuntu without issue, thanks to the directions found here: http://www.programmerfish.com/roffice-2007-in-linux Quick breakdown of steps:1. From a command prompt, run the following commands:wget -q http://wine.budgetdedicated.com/apt/387EE263.gpg -O- | […]

Linux

Joining Linux to Active Directory

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In the computer world there is always a large number of pros and cons for every technology. Windows is very good for general purpose usage and works great in an every day workplace, but doesnt perform ideally in some high performance environments. Linux can be tuned like crazy to give some high performance, but is […]

citrix

Configuring Citrix on Ubuntu

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Installing the Citrix client is easy, just download and execute it Opening a connection however fails with the errorYou have not chosen to trust “/C=US/ST=/L=/O=Equifax Secure Certificate Authority/CN=”, the issuer of the server’s security certificate To fix this, we need to download the Root CA certshttp://www.geotrust.com/resources/root_certificates/index.aspDownload all Equifax certificates and rename them from .CER to […]