Making Ubuntu Server Work in Sun's VirtualBox

Here’s a quick fix if you’re interested in installing a VM running Ubuntu Server in Sun‘s OSS virtualization tool, VirtualBox.

After installing the 32bit version of Ubuntu Server 8.10 in VirtualBox 2.0.4 on my MacBook Pro (OSX), I was faced with the following error message when starting the VM, which I found also happens on other platforms:

This kernel requires the following features not present on the CPU: pae

From Wikipedia:

Physical Address Extension (PAE) refers to a feature of x86 and x86-64 processors that allows more than 4 gigabytes (GB) of physical memory to be used in 32-bit systems, given appropriate operating system support.

Fortunately, the fix was as easy as pie:

  • Once VirtualBox is up and running, select your Ubuntu Server VM.
  • Go to the “General” configuration screen and select the “Advanced” tab.
  • Check the “Enable PAE/NX” option.

Here’s a screenshot:

Ubuntu Server in VirtualBox: PAE/NX option selection

Try starting your VM again, and all should go as planned. It did for me.

Rogers Canada Wireless Data Plan Update: Good vs. Bad

It’s no secret that I have one of the infamous 1.3 million missing iPhones with me, here in Montreal.

I only recently activated the phone features though, then found out that it took special (though widly published) credentials to be able to use Rogers’ EDGE network from the device.

So I tried the latter a few days ago, and got somewhat of a nasty surprise after trying to load one (yes, only one) Facebook page through Mobile Safari: it ended up costing me around $8.00… Ooops, I guess I won’t be doing that under my pay-as-you-go account…

I did find this a bit dishonest puzzling, since the same account (and SIM) allowed me to browse the mobile web for $0.05 per page from my older Motorola phone. Of course, there’s a difference between quasi-text-only pages vs. a standard page and all the attached media elements, but still…

The obvious conclusion was that I’d wait to use EDGE until I could score a decent data plan, since gaining the voice and SMS features was really what I was looking for when unlocking my device.

Looking for signs of such a plan, I found out that Rogers in fact recently released an unlimited data plan, without much fanfare, now matching Bell Canada’s $7.00/month offering. Details are very scarce and I’m not entirely sure this truly applies to my needs or if some types of weird partnership-based limitations are involved, but it’s definitely worth looking into. Unfortunately, the plan excludes anything but what Rogers wants to peddle, which still makes Bell’s offer a much better choice, but is unfortunately incompatible with the iPhone GSM capabilities (vs. CDMA)…

Now to top it all off, here is what happened to me this morning and what every iPhone-totting Canadian must be aware of: I was waiting for the bus, browsing the web from my iPhone while connected to a public hotspot (hence why I’m not really in a rush to get EDGE browsing activated). Reception wasn’t great though, being a bit far from the source, and what ensued led me to find out that Rogers has indeed tweaked/opened their network for increased and simplified data access: even though I had cleared out the credentials previously required to access the web through EDGE, it turns out that my iPhone did switch from wifi to EDGE in the middle of my session.

Of course, the reason I realized the latter fact was that my account quickly went from $7.00 left to $0.00… So unless you do have a ([un]limited) data plan, be very careful if you run an unlocked iPhone in Canada: the usual trick to disable EDGE (ie: not entering the special credentials) will not work anymore, and you might end up with a pretty bad surprise on your bill. Turning off Data Roaming (Settings -> General -> Network -> Data Roaming = off) won’t help either, since Rogers is my carrier. Just be sure that Mail.app doesn’t automatically checks for new messages (Settings -> Mail -> Auto-Check = manual), and avoid using network-based apps unless you have a good wifi connection.

We’re getting We’ll hopefully get there… At a somewhat totally depressing rate, given countries like Iran and Estonia have better data rates and networks than we do…

TUAW's 1.1.3 iPhone Update Liveblog

From: “1.1.3 iPhone Update Liveblog“:

It’s time to kiss my beautiful jailbreaked iPhone goodbye and to surrender to the inevitability of the 1.1.3 update. Goodbye delightful shell access. Goodbye beautiful 3rd party applications. I’m upgrading for the sake of my readers–and hopefully downgrading soon after! Read on for the liveblog…

I salute you, Erica, for taking a bullet for the team once more. :)

OpenMoko Back on the Horizon

From “User-modifiable Linux phone upgraded“:

Open source phone company OpenMoko will ship a new version of its user-modifiable Linux-based mobile phone next year. The “Neo FreeRunner” resembles OpenMoko’s original Neo1973 model, but with WiFi, 3D accelerometers, and a faster processor, as well as a consumer market focus, according to the company.

OpenMoko (com, org) had kind of fallen off the map after not meeting their October 2007 deadline for launching the consumer version. Gladly, they now seem to be back on track with their newly announced FreeRunner, a Samsung 500MHz SoC-based device.

I did win an iPhone in the meantime, but I still love OpenMoko. Even though Android and Nokia are now arguably also riding on the Open tagline.

Via Digg.

Update: Ouch… It’s supposedly priced at US$600… Hopefully, they’ll get enough volume to lower prices with the new consumer market focus.

Sandy Pentland's Reality Mining

From “Technology Review: What Your Phone Knows About You“:

Sifting through cell-phone data to get at the truth of people’s social interactions falls under the umbrella of an emerging field that Pentland has dubbed “reality mining.” And he thinks that social networks are just the beginning. The same techniques can be applied to other sets of cell-phone data to help people communicate more effectively, manage their time better, and even make their neighborhoods more livable. And it’s all thanks to the ubiquity of cell phones–the ultimate data-collection machines.

Via ReadWriteWeb.