Frode Sandholtbråten

Author's details

Name: Frode Sandholtbråten
Date registered: June 23, 2008
URL: http://www.sandholtbraaten.com

Biography

I have a Master of Science in Computer Science from the Norwegian University of Science and Technology. I am currently working as a Systems Engineer for Basefarm AS. Playing around with technologies such as Linux, Apache, MySQL, VMware, KVM, Netapps, IPv6 and more.

Latest posts

  1. Memory hotplug in Linux — January 21, 2012
  2. Ubuntu boot issues — January 21, 2012
  3. Playing around with Citrix XenServer — October 3, 2011
  4. VMware ESXi 5.0 — August 22, 2011
  5. Recovering data from MySQL InnoDB files — August 16, 2011

Most commented posts

  1. Dell PowerEdge R200 — 21 comments
  2. Whitebox ESXi — 11 comments
  3. VMware ESXi available — 5 comments
  4. VMware ESXi for free — 3 comments
  5. Serial console over IPMI — 3 comments

Author's posts listings

Jan
21
2012

Memory hotplug in Linux

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memory

VMware has a nice feature where you can add memory and CPUs on the fly without rebooting the server. It works like a charm in Windows, but it did not work out of the box in Linux.

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Jan
21
2012

Ubuntu boot issues

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ubuntu

One issue I ran into while upgrading from Ubuntu 10.10 to 11.04 was the infamous “nuking initramfs contents: directory not empty”. At that time I did not do much about it as the previous kernel worked fine. However, today my router refused to boot any of the installed kernels. As the issue has been there …

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Oct
03
2011

Playing around with Citrix XenServer

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XenServerLogo

I recently had the pleasure of playing around with Citrix XenServer/XenCenter. I tried to mimic another setup based upon VMware to compare features and see whether we could use XenServer instead of V Mware. Although it might not be a fair comparison since VMware is at least 2-3 times more expensive, I have become a …

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Aug
22
2011

VMware ESXi 5.0

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A few brief notes on the new VMware ESXi 5.0 release that are probably not covered elsewhere yet.

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2 comments

Aug
16
2011

Recovering data from MySQL InnoDB files

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mysql1

Databases are usually not something that you play around with. Especially not when they are over 700G in size and can make-or-break a huge company. However, it might be clever to use hexedit on the data files once in while!

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Aug
09
2011

Dirty mod_cache hack

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apache

Let us say that you have a couple of Apache HTTPd servers in front and a number of machines running Windows IIS in the backend, all connected through a number of load balanced addresses. Say that said setup is running Apache HTTPd 1.3.x, which is getting pretty old, and that you want to upgrade it …

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Aug
07
2011

Getting WordPress to behave

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First of all, a little disclaimer: I believe that WordPress is a nice Open Source project – and it is awesome that they are giving it away for free. It makes it easy for anyone to publish content on the internet. However, it has a couple of issues that makes it a bit of an …

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Aug
07
2011

Multi-monitor setup

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desktop

I promised that I should write about more than just virtualization systems, so I figured I might share my current desktop setup.

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1 comment

Aug
07
2011

Installing ESXi 4.1 from an USB stick

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usb_stick

As I wrote in the previous post, I recently bought a mini-iTX card with an Intel Core i3 to replace my aging firewall/router. It so happens that it fully supports VMware ESXi as well, so I loaded it up and are running the router/firewall as a virtual machine. Now, installing VMware ESXi 4.1 from an …

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Aug
07
2011

Whitebox ESXi

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asush67itx

I remember the first time I got my hands on VMware ESXi. It was the 3.5 version and it quickly became apparent to me that this was the feature. Long gone was the chubby ESX COS which I used before. Of course, having a full COS (Linux) had its benefits, but it did little to …

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11 comments

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