Going into Control Panel to change the audio playback device, and saw that “ATI HDMI Output” device showing “Not plugged in“, and unable to be selected.

Solution: I googled the problem, browsed a few solutions in various forums, opened up the HTPC case to make sure everything is plugged in properly (which they are, as it’s actually an all-in-one motherboard), updated to the latest ATI driver, etc. Nope. Nothing works.

Then it turns out that it’s just a matter of getting into the BIOS (pressing [DEL] when the computer boots), going into “Advanced BIOS feature”, and changing “Onboard VGA Output Connect” to “D-SUB/HDMI”. It is usually “D-SUB/DVI” as default setting.

Booting back into Windows, and the audio would just work :)

That sucks.

Here’s a trick to run multiple OpenOffice.org instances concurrently, all from one single installation, on Windows. Assuming the latest OpenOffice.org 3.x is installed. It’s actually pretty simple — just change the USERPROFILE environment variable! Or HOME on Linux/Solaris.

For example, in Java

ProcessBuilder pb = new ProcessBuilder("c:\\Program Files\\OpenOffice.org 3\\program\\soffice.exe",
    "-accept=socket,host=localhost,port=7999;urp;StarOffice.ServiceManager",
    "-invisible", "-headless", "-nologo", "-nofirststartwizard");
Map<String, String> env = pb.environment();
if (windoze) {
    env.put("USERPROFILE", "c:\\temp\\12345");
} else {
    env.put("HOME", "/tmp/12345");
}
Process ooo = pb.start();

Yeah I am putting this here because the search result on Google is pretty junky. And I just realised that I have not blogged for yonks. Busy buys busy.

It does have a small display panel though, showing 4 different flight instruments to both pilots. When you pull, push or rotate the control column, the display actually changes — like a real plane! However only the set on the left hand side works. The instruments would not update when you move the control column on the RHS. Upon close inspection reveals why the displays fail to update.

When you zoom in…

Now, that’s something you definitely don’t want to see on a real plane!

Why? Simple. I just want a browser. Wireless works out of the box. I didn’t have to screw around with configuring my network.

Great. Now I am not sure which OS should I switch to next.

Daylight saving time changes to standard time on last Sunday of March, 2007. Therefore, computers that have the KB 912475 update installed will not show the correct 2007 daylight saving time transition date for the affected time zones in Australia. These computers will change from daylight saving time to standard time a week late, on April 1, 2007.

I have previously blogged about that KB 912475 change, which was caused by Commonwealth Game 2006 in Melbourne finished on the same day of DST change. Apparently Microsoft Windows is not capable of managing DST change exception just for one year. Therefore in order to display the correct time in 2007, Microsoft is pushing out another automated update to revert back to the old behaviour.

I think it must be very confusing to software packages that keeps internal data in GMT/UTC, and apply the local time when it needs to be displayed. For example a diary/event scheduler. An event created between 26 March and 2 April 2006 will have the correct local time offset with KB 912475 applied — but after KB 913670 has been applied it will use the wrong offset.

I guess it is not uncommon for MS to break one patch with another patch.

At least Linux timezone file is unaffected as it takes care of the exception years.

Me. I am stuck. On Windows.

Well, not really by choice. My work relies on running Windows XP Professional on this Dell laptop. It runs a few important applications that I need (Internet Explorer, Outlook), and the user interface is “reasonable” in classic mode.

However, I also would like to run Linux on the lappy, as all my tool chains for work were coded for posix environment. With the things I do, I find myself doing faster on command-lines. The shared Linux boxes at work were overloaded by the developers (no one seem to like working on Windows), and cygwin just does not feel like the “real thing”.

VMWare Inc released its free VMWare Player last week. It provides ability to run a guest operating system inside another OS, which would be perfect for my needs — running Linux inside a virtual machine, on top of my existing Windows XP system.

And here is my guide on how to get it working.

Problem

You cannot use VMWare Player to create virtual machine images — VMWare requires you to get their Workstation or Server version to do that. It can be overcome by downloading an existing VM, and then re-install it with the OS of your choice. Or alternatively, use QEMU to create VM images in VMWare’s virtual disk file format.

Operating Systems

My host operating system is Microsoft Windows XP SP2. Installed by techies at work, and I don’t even have Administrator password for it. It is running on a Dell Latitude D600 notebook with 1Gb of RAM and 60Gb on IDE0.

I chose Gentoo Linux as my guest operating system. It is the operating system I use on this server box. It is very versatile, easy to upgrade, has huge number of packages, very well supported and Gentoo just gives you that “cool” factor. Doesn’t real man compile his operating system?

At the same time, Gentoo might not be the best choice for a VMWare guest OS, as a simple emerge world inside the virtual machine is going to put heavy tax on the CPU. I will recommend Ubuntu Linux if compiling the OS is not your thing.

We are also assuming the guest OS will be installed on “C:\linux\gentoo.vmdk“, where the VMWare configuration file will be called “C:\linux\gentoo.vmx“.

Downloads

Get these ready before starting out.

• VMWare Player
• QEMU — we actually just need qemu-img.exe to create the VM image.
• Gentoo Linux — you will need:
  • /releases/x86/2005.1/installcd/install-x86-minimal-2005.1.iso — LiveCD to boot the VM into Gentoo Linux.
  • /releases/x86/2005.1/stages/i686/stage3-i686-2005.1.tar.bz2 — Stage 3 to bootstrap installation.

Installation

1. Install both VMWare Player and QEMU. You will need to restart Windows afterwards.

2. Assuming you have installed QEMU in “C:\Program Files\QEMU”, fire the following command inside a Windows console to create the virtual machine image allocating 10Gb of space:

   C:\> "C:\Program Files\Qemu\qemu-img.exe" create -f vmdk c:\linux\gentoo.vmdk 10G
   Formating 'c:\linux\gentoo.vmdk', fmt=vmdk, size=10485760 kB
   C:\>
   

   It actually does not create a 10Gb file in that directory, as space will only be allocated when needed. So it might be wise to create something a bit bigger, depending on your need.

3. Create a virtual machine configuration file (using notepad.exe will do), and save it as “C:\linux\gentoo.vmx“:

   config.version = "8"
   virtualHW.version = "4"
   memsize = "256"
   ide0:0.present = "TRUE"
   ide0:0.fileName = "c:\linux\gentoo.vmdk"
   ide1:0.present = "TRUE"
   ide1:0.fileName = "c:\linux\install-x86-minimal-2005.1.iso"
   ide1:0.deviceType = "cdrom-image"
   ethernet0.present = "TRUE"
   ethernet0.connectionType = "nat"
   usb.present = "TRUE"
   sound.present = "TRUE"
   sound.virtualDev = "es1371"
   displayName = "Gentoo Linux"
   guestOS = "other26xlinux"
   nvram = "gentoo.nvram"
   scsi0:0.redo = ""
   ethernet0.addressType = "generated"
   uuid.location = "56 4d d9 96 08 47 ef ee-bf f2 48 a8 ce 89 7f 68"
   uuid.bios = "56 4d d9 96 08 47 ef ee-bf f2 48 a8 ce 89 7f 68"
   ide1:0.autodetect = "TRUE"
   ethernet0.generatedAddress = "00:0c:29:89:7f:68"
   ethernet0.generatedAddressOffset = "0"
   checkpoint.vmState = "gentoo.vmss"
   tools.remindInstall = "TRUE"
   ide0:0.redo = ""
   

   You should also save Gentoo Linux’s LiveCD ISO image inside C:\linux (referred by ide1:0.fileName in the configuration file). Now it is almost ready to go!

4. Double click on the VMX file. Windows might prompt you, asking which application it should use to open the VMX files. Associate that with VMWare Player. VMWare might ask you about the UUID — just create a new one as it is a new image. You’ll then see the virtual machine POSTs, booting off the CD, and eventually give you a root prompt!

   Now, you can just install Gentoo Linux like installing it on any other PC’s. Preparing the disk (it would be /dev/hda), unpacking the installation stage tarball, chroot, and start emerge sync && emerge system!!

Well, I know this installation guide is sort of incomplete, as it stops at the stage where the OS is not even on the partition. I guess the important part is just documenting the hack using qemu-img.exe to create virtual machine image, and Linux is now ready to be installed inside this prepared VM. However, if you have not installed Gentoo Linux before, I will recommend their quick installation guide which contains almost everything you need to get bootstrapped (if you already know Linux). There are other documentations on Gentoo’s website worth checking out.

Frequently Asked Questions

Err. Actually, no one has asked any question yet. However I will just share some notes here in a dialogue manner.

Q: How do I copy the stage 3 tarball onto a running virtual machine?

A: Although the minimal LiveCD has smbfs included as kernel module, I could not seem to mount my Windows share. You can however,

• Use wget inside the VM to pull the tarball from Gentoo mirrors, or
• Start sshd,

  livecd root # /etc/init.d/sshd start
  

  And then use scp to copy the tarball over.

I am sure there are plenty of ways, but these are the two I used.

Q: Is there an easier way?

A: Apparently you can just download the VMWare Workstation evaluation version, create as many images you want (you really only need 1 if you are running Gentoo) within its 30 days evaluation period, and then use VMWare Player to run those images afterwards.

I should have done that. Doh.

Elsewhere on the Net

• Slashdot story on free VMWare Player
• Hack a day story on using FreeDOS and an existing image
• VM image templates — a bit ZIP file that contains all the operating systems that you might want to install (except a Gentoo image).
• VM Builder — creating a VMX file for you using web form.
• VMXWizard — a desktop VMX file creator written in .NET.

To be Continued…

Yeah. I will try to clean up this post, after emerge has finished…

Fun.

Search-wise I prefer Google, however Konfabulator/Yahoo! Widgets look nicer, Konpose really makes sense (even though an Apple rip-off), it is easier to develop (only need to do Javascripting), and also integrates better with Yahoo’s international service. Google Desktop Sidebar is currently a bit useless to me at the moment as I cannot keep track stock prices on ASX, nor weather report in anywhere outside the North America. And I have no desire to develop for it either — as I would not touch COM with a 6 foot long pole.

Not sure whether MSN would join the party. That will be even more interesting.

However, after inspecting Secunia’s code and understands how it works, exploiting this vulnerability does not seem to be an easy task in real life. You have to open the legitimate site as a new window from the malicious site, and retain the window of that malicious site to keep the Javascript code running. Why would someone rely on a third party untrusted site to open a window to access the site that you trust and rely on is beyond me – that is what “bookmarks” are for.

Anyway, it has already been reported as a bug on Mozilla, and thanks to Open Source it would probably be rectified soon.