Category Archives: Xen

Using KVM for virtualisation, why?

A month ago I wrote already in my previous post that hosthuis.nl is using KVM for there servers. Now that we moved our first server as well to a new datacentre, we are currently installing KVM on that server as well. A lot people think KVM is something complete else as virtualisation, and actually they are both correct as wrong. They are thinking its a KVM Switch, what means you can control serveral server/PC s with 1 keyboard or mouse (Locally, or with a special device via internet). However, this KVM stands for Kernel-based Virtual Machine, something complete else 🙂 Continue reading Using KVM for virtualisation, why?

Installing freedos

The data from the BIOS update official requires DOS to work. Iam now going to try it with install freedos, and running it then.

Firstly to do this I needed to install syslinux from the debian repo. With this ramdisk I will be able to boot with freedos later.

After installing it, I copy some files to /boot/, where grub everything excepts:
cp -a /usr/lib/syslinux/memdisk /boot/.
Now we download and extract freedos:

devbox:~# wget http://www.fdos.org/bootdisks/autogen/FDOEM.144.gz
--15:43:34-- http://www.fdos.org/bootdisks/autogen/FDOEM.144.gz
=> `FDOEM.144.gz'
Resolving www.fdos.org... 65.254.250.110
Connecting to www.fdos.org|65.254.250.110|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 109,795 (107K) [application/octet-stream]

100%[=====================================================================================================================================>] 109,795 128.41K/s

15:43:36 (128.13 KB/s) – `FDOEM.144.gz’ saved [109795/109795]

devbox:~# zcat FDOEM.144.gz > /boot/biosupd.fdd

and after that edit the menu.lst to include it.
Here we add this piece:
title BIOS update
kernel /boot/memdisk
initrd /boot/biosupd.fdd
And now we are going to test this thing first 🙂
The first time after rebooting I made a small mistake, what caused a grub error, but after fixing that it works 😀

After doing this I mount the biodupd.fdd and copy the files from the bios update. Lets hope it works :mrgreen: