Opensource software, hardware, whateverware...

Sony Ericsson X8

2011-07-10T08:49:00.000-07:00

Be it after a long delay, I finally did catch up with Android by getting myself a Sony Ericsson X8 phone. Why X8, some may ask? I want to start by saying that I've a bias towards Sony devices. I like their sound quality more than anything else. I've used an SE phone before, a T610 and except for the battery, it was simply great. On Android, I do know that SE has been crawling releasing 2.1 Eclair on new launches, when the competition has moved beyond 2.2 Froyo onto 2.3 Gingerbread. X8 specifically has a low memory with its standard release giving only 128MB, while even LG's Optimus gives 512MB in a similar pricing! Then again, as they say... its a Sony! :) Worse yet, unless one gets a newer manufacture, 2.1 is available only as an upgrade to 1.6 Donut.

That said, I still chose SE X8 because it is a good phone and although SE has officially announced that there shall not be further upgrades to X8, XDA forum currently has both Froyo and Gingerbread releases for X8! There are many other flavours also, including one in between, called FroyoBread. The last one is supposed to be a well-tested release with Froyo's stability and Gingerbread's features. In this blog, I wish to mention some of the features of the standard SE release with the requirements to hack the phone for non-standard upgrades. Mind you, this voids the warranty [unless you can get the phone back to factory release before claiming warranty ;) ] I've bought an additional warranty of another 12 months from the seller beyond the standard 1 year by SE.

Initially, I liked the SE X8, with a decent 3" screen. Both GSM Edge as well as WiFi worked just fine. The still as well as video camera is great. One issue with 2.1 is that its applications soon fill up the memory and since Android has its own memory management, with hardly any applications having an "exit", Advanced Task Killer is necessitated as a first install from Android's market. Yet another hurdle with enjoying more apps on 2.1 is that it doesn't allow moving apps to SD card. So my buying a 16GB card didn't turn out much useful yet. Having seen my 2.3 GingerBread on my brother's HTC Wildfire S, I couldn't wait to root the phone. Further, I found out that Quadrant Advanced clocks 440 as a benchmark with SE Eclair. This is expected to turn out to be rock-bottom with other releases, which I'll talk of in upcoming posts.

MAC cloning

2010-12-26T23:46:00.000-08:00

I never thought that cloning MAC addresses was so simple, especially in Linux. But first I will digress as usual and start off as to what led me to cloning the MAC address. To skip all the blabber, goto to the bullets where it says skipblabber. :) Since my Toshiba laptop went out for service, it has started giving many problems in a row. First the heating issue led to a shutdown problem, then I messed up the alcohol used to clean the chips' heatsinks and conked my display off. The service guys fixed that but damaged all the navigation keys which almost need me to stand on them to move intermittently. With so many problems, how would I not suspect the laptop's networking when my ISP refused to connect?

My ISP kept on giving me errors on all flavours: Vista, Maverick and even downgrade installations to Jaunty! The error code indicated authentication problems, which may be protocol issues. I went ahead and got the ethernet and wifi checked elsewhere and all worked fine. Only then did I call my ISP and ask what the heck was going on. It turns out that my ISP has recently locked the account to a single MAC address for "security reasons". They wanted me to fill up a form to say that they should open my account to other MAC addresses and any misuse then would be my responsibility. I went straightaway looking for forms but they didn't tell me that Sunday their branch here is closed. I came back disappointed, but a search online landed me a simpler solution. Why go out at all signing forms when a few keystrokes get the job done?! :) So here goes:

skipblabber:

Get your source system (my PC thats locked with the ISP) MAC address by ipconfig /all if you're in Windoze or in good ol' Linux you check the entry for ether by ifconfig. This MAC is used further as xx:xx:xx:xx:xx:xx
Repeat the above for the target system (my laptop thats locked out from the ISP) so that I can jot it down in case something ever goes wrong. Contingency, that is. :)
To change the target MAC on Linux:

sudo ifconfig eth0 down
sudo ifconfig eth0 hw ether xx:xx:xx:xx:xx:xx
sudo ifconfig eth0 up (Goes off on reboot)
OR in recent Ubuntu systems, just right click on network ->Edit Connections -> Eth0 -> Edit -> add xx:xx:xx:xx:xx:xx to Clone MAC. (Stays on reboot)

To change the target MAC on Windoze:

Go to LAN properties -> General -> Configure (LAN card) -> Advanced -> Network Address (Property) -> add xx:xx:xx:xx:xx:xx to Value -> OK
Disable & enable the LAN or reboot (the Windoze way) :)
OR regedit/ regedit32 and expand HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\ Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}
While there, check all subkeys 0001, 0002... till you get your LAN card in DriverDesc.
Add xx:xx:xx:xx:xx:xx to NetworkAddress value.
Reboot.

If all went well, ipconfig /all or ifconfig should show you xx:xx:xx:xx:xx:xx as your new MAC. You need to try connecting to your ISP after the MAC change. In case of Linux, this would mean:

sudo poff -a dsl-provider
sudo pon dsl-provider
OR sudo pppoeconf (if not already done earlier)

Note: In case your pppoeconf is stuck at 100% and goes nowhere, you're fast and lazy at the same time like me. :) You didn't read all that pppoeconf throws and pressed enter, enter,... If that, pppoeconf is likely stuck searching other network interfaces for announcements; this is a guess, by the way. Best way to get ahead immediately now is to unplug the LAN cable and replug it. :) Don't worry, its at 100% on eth0 search, so it will have those settings.

Using Linux for Windows fix!

2010-12-16T01:51:00.000-08:00

I downloaded the trial version of BitDefender antivirus for my XP today and in its scanning during the installation itself, it found some 3 issues with Windows files and quarantined them. It asked for a reboot to continue installation. On reboot, it resumed or started the scan afresh without even really giving me my desktop; it was a blank screen with BitDefender scanning in the foreground. Meanwhile, a pop-up box told me that SYSTEM is going for a shutdown as the explorer.exe or some other service crashed. Well, okay, hardly a choice! However, on restart this time, I got a command line message on NTOSKRNL.EXE missing. Obviously, BitDefender knocked it off for a virus or something and am stuck with a command line. Worse yet, I can't restore it because I don't have a DVD/CD ROM drive. (It *burnt* a couple of months back).

So much for background. Next, I rebooted in Ubuntu Maverick and searched my system for an XP install ISO dumped. Maverick is awesome, because it opened .iso as is. Within that I386 folder, there was this NTOSKRNL.EX_ that needed to be expanded. I sent it straight down to my pen drive, ran an expand on it from Vista on my laptop and got it back here. All I needed now is to get the expanded NTOSKRNL.EXE (renamed from expanded NTOSKRNL.EX_) into C:\Windows\System32\. Phew.

Windows is mighty sick but my bank webpages and software unfortunately works only with Windows. :(

Maverick Meerkat 10.10 beta

2010-09-03T01:37:00.000-07:00

I installed the Maverick beta today and had device string error or something like that as soon as I ran off the install from the USB drive. I went to the expert mode and installed it using the old CUI interface.

I also have an XP for dual boot on my PC and chose Grub instead of Grub 2 for boot loader. Everything went well till I tried to boot XP, which too failed with an "Error 11: Unrecognized device string". On edit, I found that the boot string for XP had (hd0, msdos1). This is wrong and works with (hd0, 0) which is Grub language for /dev/sda1. Looks like this same error had caused the install failure. I'm not sure if any or all of this is mentioned in known issues; I didn't read through them in the excitement of getting things go. :)

I'm happy with installing Maverick beta over Lucid instead of an upgrade because my Lucid had some unresolvable issue of taking the entire RAM immediately on boot up. I wasted enough time finding what was taking so much memory, but didn't succeed there! Maverick doesn't hog as much memory.

Getting hands dirty

2010-03-07T22:12:00.000-08:00

Its been a while since I played with any core hardware. I've been postponing my temptations to get a beagle (now more options of hawk/leopard) board since over a year for reasons best known to me in my sleep. ;) I've been itching to get my hands dirty with one thing or the other. Last I held my soldering gun was when my ADSL was screwed up due to line static. I went around checking the cause for noise in the internal wiring and hunted it down to the rosette box. I tried bypassing that seeming balloon and that needed manhandling of the delicate telephone wire onto a rugged external line. I managed to solder it out. Its a penny job if you look at it, but the pleasure of holding the solder gun with the 60-40 melting is indescribable. :)

This time around, I was pissed off with how my Toshiba A100 laptop dies off due to overheating. Since the past 2-3 Ubuntu releases, long usages have been shutting off the laptop with the touchpad almost burning. I've tried to get a laptop cooling pad in vain, but what use are external set of fans when Toshiba overheats to death on its own? Its a shame. Vista, the junk that came loaded with the A100, used to keep the laptop booted for longer hours than Ubuntu as per my usage. That, however, doesn't solve my problem. My earlier experience with trying to pull the DVD drive off the laptop or pulling the HDD didn't seem userfriendly with the Toshiba. I'm a fan of Japanese products, but all the Jap products I've used are really service unfriendly! Sadly, I tried my hands to get to the internal fan yesterday not wanting to travel to a service centre which is quite far from here, not to mention that I hardly trust any of those people to do a good job and in time.

I've this addictive habit of taking a task to its very end knowing the risks at most times. So I opened the laptop which was a painful effort. I almost assumed that I will break a couple of plastic locks and then they won't fit back easily needing a bit of gluing together. To my surprise that didn't happen, but I was shocked out enough to write off 45k (cost price) worth of my laptop because the fan was way difficult to get to and all the cables between the top and bottom of laptop came off loose! This design sickens me to no end. All the cables are half my finger's length-- no exaggeration there-- 3 buses on the main board were held on to the connectors with latching locks. (Sadly, these connectors are new to me). It scared the hell out of me when they came off due to some tagging on to them when pulling the panels apart. Not only is the distance insufficient to put them back together but now I need to push the bus in the lock putting my thick hands between the panels and then push the lock to latch in the bus with the other hand. Crazy freaks! 3 of them!! Putting them together brought out other end of one of these sick buses. That was pathetic. After I got them together, somehow, there were 2 more button type grounding-like pins. What were they thinking making those dumb gold pin button connectors? To put these back on and keep them in place while playing with other connectors was an add-on pain. When I got all this together, I was good to go... Oh! I did not mention the reason I opened the laptop was the fan, which got taken care of. Before this mess of wiring got put together, I'd pulled off the fan and pulled the parts apart, blown away a ton of dust and washed the fan, save the coils. :)

Hmm, I was saying I was good to go... or so I thought. While closing the panels together I saw that there was this flat connector which I suspected to be the display cable. Now, believe you me when I say that this Toshiba design bottoms off even those sick main board connectors! This weirdo cable was half my nail's length from the panel, loosely changing its angle, and I'm supposed to fit this onto the main board while closing the panel! Barely a forcep's flat side was reaching into this gap! No press fit this one. I closed the panels praying that maybe they are press-fitting each other... high hopes. :) The laptop booted up, but without display, a much expensive problem to fix. Well, at least I was sure that its the display cable. I tried much and gave up yesterday. Now, I'd a bigger problem to look at: find a good service centre and somehow convince them to take an open laptop without display for a fan problem! An impossible proposition, very expensive, if possible. Just for a fan, I was quoted 2k+approx 1k labour. 3k there. Add the cost of explaining an open laptop without display! Hah! I realized I wrote off 45 grands, possibly.

Today I took the issue in broad daylight. Why the hell is the cable so short? I got no answers, not even dumb ones. I opened more parts around the cable to no avail. Then I decided to pull onto the cable with all my forcep-strength. I got another half a nail's length. Whoa! More pulling risked the cable/connector/display.. God knows whats at the other end of that cable. With multiple forceps, crushed fingers and God's will I got the connector in. And the A100 is working... to what cooling benefit I do not know. If I find a powerful fan, I will likely open it again. :D

Why such excruciating details, you may ask and I'll say fair question indeed. How else do you expect me to share my pain of accepting burning 45 grands due to many sick unthought designs into an otherwise good Japanese brand called Toshiba?! :D

--

BBC's 24 hours with Ubuntu! Really?

2009-10-24T10:01:00.000-07:00

This is in response to BBC's review of Ubuntu on its blog, spending only 24 hours with it, that too after they made erroneous statements about Ubuntu while advertising Windows 7 on their breakfast show. This follow-on for reviewing Ubuntu by BBC, after that faux pas on the show, was initiated by Canonical.

Most of it has been said, I'll try to say some things that got left out. Not one person made a point about how simple Ubuntu install can be for a Windows user who wants to try his toe in the water: wubi (ubuntu installer for windows)! Just download wubi.exe, run it from Windows, define how much space to use for Ubuntu, choose login creds, take a coffee/ lunch break, return to your comp with a dual install! Days of Linux install have become simpler since Knoppix launched a live CD that announced vocally on what devices are detected and installed! Just when I thought it doesn't get any simpler than that, Ubuntu gets better with each release.

Microsoft is so greedy, that when I bought my Toshiba laptop, I was forced to buy it with Vista, with a caveat that said "Installing any other OS voids the warranty". Even if I wanted to have dual boot, I couldn't do that in warranty. Funnily enough, any reinstall of Vista and other Windows flavours arrogantly overwrites any other OS! Why?

For almost everything that Linux can do with a command line for a desktop user, Ubuntu can do with GUI. Another thing about people who just hate to use keyboards are missing a loud point even in Windows GUI: all those menus have keyboard 'short'-cuts! Sometimes, keyboard is faster than the mouse.

If you've tried detecting and transferring files between XP and Vista on your network, that would tell you why expecting all your Windows machines to just popup on your Ubuntu map, without any protocol setups, is plain bias.

MrFaulty talks of WiFi install issues as a techie. WiFi on Vista has been a pain for me; it gets some godforsaken IP on a DHCP mode and I need to hardcode it to work well! Windows should have perfected it by now, but no; OTOH, it works smoothly in Ubuntu. And he also talks of RAID 0 when the article is about a layman desktop user. What you can do with Win for RAID, a similar experienced person on Ubuntu can do it in a jiffy too. But then again, if you are a technology person, you ought to mention developers, rate at which bugs get fixed on Ubuntu and umpteen development tools that come free, all of these things beat down Windows to death.

Getting hold of Wine to run Spotify is not as much of a bother as needing to get hold of Win7 pro version to do something as simple as getting an XP app/ device to work! The latter means shelling more money out to get Win7 do something that your XP did initially, which you'd already paid for, and MS made you buy Win7 instead. The former means installing Wine with a couple of steps and you're ready to go... simpler than buying local wine! :)

Finally, Rory, I think Ubuntu survived your 24 hours with it. Had you been a Linux user as long as you were using Windows and had to spend 24 hours with Windows 7 instead, I'm certain you'd have flushed the Windows netbook/laptop by now! :)

Getting Firefox backspace work on Ubuntu

2009-09-11T22:49:00.000-07:00

For some like me who love the keyboard, more than mouse at times, Firefox on Ubuntu could get a little irritating to navigate between already surfed pages. On WinDoze, Firefox by default allows backspace to take you back to last visited page (while shift+backspace takes you one page forward). Of course, this is only with default settings and mostly everything is customizable. However, being the lazy me, I didn't do anything about it thus far.

Today, I did the following simple change to get it working and it didn't even need a browser-restart :)

i) Go to about:config by typing the same in the URL.
ii) Promise to be careful with it :)
iii) Type backspace in the filter-bar.
iv) Change the value of browser.backspace_action to 0 (by default, its 2)

You're done. No need to close the browser. Just press backspace and go back to where you left off before irritating yourself because backspace didn't work! ;)

Firefox Shiretoko

2009-09-11T22:21:00.000-07:00

Firefox 3.5, code-named Shiretoko, has a brand new feature called private browsing. Its very useful if you share the laptop with some visitors every now and then, but not often enough for them to have a Firefox profile.

This feature, as some might think, is not proxy-browsing which hides and translates your IP into something else. Its also not really a setting which deletes all your history, cache and cookies when you close the browser. Its some of it and a little more. With Shiretoko, you can privately browse while keeping your old tabs intact. So if your friend drops by and wants to check his mail on your laptop, you just give him private browsing, without actually logging out of your mail and other accounts, while he gets a clean browser and leaves it clean too. Shiretoko continues just where you left off when he's done browsing privately!

Matrix in Windows!

2009-03-11T10:45:00.000-07:00

You've to watch this if you liked Matrix and/ or like Ubuntu and/ or dislike Windoze: "Ubuntu. I'm going to learn Ubuntu".

Epson TX101 installation

2009-03-10T01:42:00.000-07:00

Update, Jaunty onwards: Epson has a new release with libtdl7 support. Try that first instead of wasting your time doing the following. The following works only for Intrepid 8.10 and perhaps, Hardy 8.04 release with an Epson driver for libtdl3.

(In case you hit this page to find how-to install, skip blabber, jump straight to end of this weblog for stepwise instructions)

I bought Epson TX101 printer-scanner-copier a few days back and was waiting for the Epson chap to install it due to warranty issues that the seller told me of. Needless to say, when he turned up yesterday, not only didn't he know Ubuntu installation, but he hadn't even heard Ubuntu or Linux for that matter! He did some basic Vista install and looking at his "expertise", I had to ask him to just make the installation report and leave.

My efforts on getting it to work on Ubuntu took long U-turns due to my stupidity. First of all, I tried things yesterday night when I was barely keeping myself awake on the chair! Back to technicality, I tried gutenprint, iscan, xsane, CUPS and pips, when things didn't work by default when I plugged in the USB. Of course, I made the mistake of typing in xane instead of xsane earlier on. But today, I started afresh when iscan install cried for libltdll3 in the night! Later I found out that iscan was (perhaps) installed by default on Kubuntu, with a dependency error; same thing as libltld3.

Intrepid, possibly Hardy too, uses libltdl7. So a simple fix is to make a soft link to libltdl3 and I should have been on the way, but it didn't work. It needed a simple replug of USB cable and not only iscan, xsane worked too!

Steps:

Download the correct package from http://www.avasys.jp/lx-bin2/linux_e/spc/DL1.do.
Make sure you have sane and sane utils installed. Use sudo synaptic to find out.
Also make sure you have libltdl7. (Of course, you can't get a libltdl3! :) )
Install Image Scan and Print system by running sudo dpkg -i --ignore-depends=libltdl3 iscan_2.17.0-3_i386.deb (or whatever the name/version is).
Do a sudo find / -name libltdl.so.7. cd there. (Of course, one level higher!!!)
Create soft link by ln -s libltdl.so.7 libltdl.so.3.
For some reason (read above blabber), I did the following too. Do it if you need to.
Do a sudo find / -name libltdl7. cd there. (Of course, one level higher!!!)
Create soft link by ln -s libltdl7 libldtl3
Create soft link by ln -s libltdl7 libldtl3-dev
Plug-out (if plugged in) and plug-in the TX101 USB cable. I didn't do this and wasted a lot of time finding out why iscan and/ or xsane wasn't working. Both were needing me to replug the TX101!
You're done.
Test printer: Go to http://localhost:631 for CUPS, check if you've the printer right. Do a test print. You'll get the print below.
Test scanner: Open iscan or xsane. Scan works as below. :)

Intrepid Ibex on laptop

2009-03-05T21:42:00.000-08:00

I've managed to get to Kubuntu on my Toshiba laptop, downloading a wubi based install throughout the day yesterday. Kubuntu kept me awake nearly till 0200 with its vibrant GUI and new apps. I was trying to get all work at once, but succeeded with some till sleep took over.

This morning, I found out that although I got the latest version 8.10 running, I've stumbled upon a non-LTS (Long Term Support) release post Hardy Heron 8.04. The next LTS release is Kubuntu 9.10 way ahead in Oct 2009, while another non-LTS Jaunty Jackalope is scheduled for April 2009.

A few days back, I made a wubi shift on my 64-bit dualcore AMD Anthlon XP2 desktop too, of course on NTFS now, but intend to make it a pure ext3 Linux machine. I want to continue shuffling WinDoze Vista for a while on the laptop alongside Kubuntu, just because I was forced to buy it in the laptop price! ;)

Why's Ubuntu special?

2009-02-26T03:15:00.000-08:00

Ubuntu's very special due to simplicity, and absolute simplicity at that, has 32/ 64 bit versions, support for almost all the devices/ peripherals and speedy fixes. But I've a single reason above all those reasons. Its based on the best of the distributions: Debian. I'm not sure I'm loud and clear here, so I'll go on...

Debian was once the most complicated installation, with hardly any other flavor than the German. Its installation was in German, all docs, everything. Not many could install it back then and therefore, very few got to use it. It was still the best distribution then. What is interesting to note is that the makers of Ubuntu built on Debian, the best distribution available then, available in the least user-friendly way and turned it the most user-friendly distribution without messing up the best things.

Whats more, you get to pick between plain vanilla Ubuntu with Gnome, Kubuntu with KDE, Xubuntu which is packaged for speed, Edubuntu for education and Gobuntu thats totally GNU/ FSF!

Not BSNL, Vista blues!

2009-02-26T00:52:00.000-08:00

One thing about blogging about Linux is that it contrasts against Microsoft way of doing things. That is, Linux does things in a standard way but Microsoft keeps on contradicting itself.

Now, this one is about setting up the BSNL provided router to let wired access for PC and wireless access for laptop. I suspected BSNL and/ or UTStarcom's stupid router to be the culprit when I'd trouble with DHCP. (I did mention that I moved my PC to Ubuntu yesterday, but I'm still stuck on Vista for my laptop). The wireless adapter on the laptop wasn't getting a DHCP IP 192.168.1.x and somehow got some funny IP 169.254.205.173! Ergo, no LAN or WAN access. Instead, I'd to force a static IP on the laptop to access the router settings, force it to bridge mode and then dial up PPPoE from laptop! This pathetic setting would also mean that I can use either the laptop or the PC, basically one client at a time and also means on-demand connection from that client! I tried almost every setting with the router, including adding MAC filter for wireless access, but made no progress.

I knew there was something fishy about DHCP but didn't know what. So I began on that thread of thinking: why the hell does Vista get me a nonsense IP? Whats 169.254.205.173? Then I searched online on network classes to find that this is a fallback IP if everything else fails! How can DHCP fail for wireless/ Vista and still work for wired/ XP or wired/ Ubuntu? It turns out Vista was the culprit here with the wireless adapter not getting DHCP, it was falling back on 169.254.205.173 which was its autoconfiguration IP, a zeroconfig! More search online led to http://support.microsoft.com/kb/928233 which says "Windows Vista cannot obtain an IP address from certain routers or from certain non-Microsoft DHCP servers"... hmm, interesting, very interesting, note the words "non-Microsoft". What do you mean non-MS DHCP servers? Shouldn't you be saying Vista is non-DHCP OS in some way instead? Be as it may. :) The MS suggested solution is to add a DWORD32 DhcpConnEnableBcastFlagToggle flag set to 1 under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{GUID} where GUID is the network adapter that you want to Vistafy or Vis**-up! :)

I blog this only as a reference for some or even me if I go mad to come back and use Vista ever again. This might work for some, it didn't work for me. But taking hint from the MS article, I'd to finger wireless network properties to "connect even if the network is not broadcasting". This worked, yes! I got a clean DHCP IP and things seem good.

IDE and debuggers

2009-02-25T02:12:00.000-08:00

Since the time I started programming, I've been using printfs for debugging. For some reason, I found it much easier, better and concrete overall compared to any tools. So my programming tools have almost always been vi and printfs. Of course, when I was forced into using Visual Studio, I did use the VS debugging tools, but they were limited only to looking up values in runtime than anything, something that you'd do with gdb or printfs. IDEs and debuggers do make life easier in the short run but they *help* build bad habits, quite similar to relying on word processors that correct your language even if you write syntactically incorrect stuff. A bad coder, similarly, tends to rely on IDEs to help the syntax and debuggers to assist fix an unthought piece of code already written!

Today, all that came back when I was looking up to tune the Ubuntu install to see what all I'm missing that I may use once in a while. Not that I'm doing any coding, but I began looking up IDEs that came up on Linux since Anjuta. Looks like KDevelop and Anjuta are still going good. Funnily enough that led me to some pros-and-cons debate of using IDE, which had a link to what Linus Torvalds feels about debuggers, more clearly kernel debuggers, aka "I'm a bas****" mail. :)

Goodbye Windoze!

2009-02-25T02:09:00.000-08:00

(Shifted from anythingwise blogged yesterday)

I'm up and running on Ubuntu 8.04 for my 64 bit system and looks like I've already fallen in love with it. :)

Of course, my installation may have been non-standard first time in all these years because after cleaning up one drive and before beginning an Ubuntu installation, I did the following:
--Searched Ubuntu 64 bit binaries on the system. I found the ones I'd downloaded. Unzipped them. Was thinking of burning a CD and starting Ubuntu installation, but...
--While going through them I found a Windows executable, perhaps wubi.exe. Running it just installed everything in an NTFS partition without removing anything, moreover, from within Win XP! Ubuntu really believes in simplicity, doesn't it? :)
--A reboot led to installation and I switched on the DSL just in case it needs it. Everything done.
--Then it asked me if I wanted to get a proprietary Nvidia driver for my graphics card and downloaded them without hiccups.
--The programmer within me tested cc first, which was working. So I tried c++ which it asked to confirm, downloaded and installed!!!

No wonder, Ubuntu stands for: Linux for humans. :D