Practical Technology

for practical people.

November 26, 2008
by sjvn01
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The world’s fastest computers are Linux computers

There are fast computers, and then there are Linux fast computers. Every six months, the Top 500 organization announces “its ranked list of general purpose systems that are in common use for high end applications.” In other words, supercomputers. And, as has been the case for years now, the fastest of the fast are Linux computers.

As Jay Lyman, an analyst at The 451 Group points out, Linux is only growing stronger in supercomputing. “When considered as the primary OS or part of a mixed-OS supersystem, Linux is now present in 469 of the supercomputer sites, 93.8% of the Top500 list. This represents about 10 more sites than in November 2007, when Linux had presence in 91.8% of the systems. In fact, Linux is the only operating system that managed gains in the November 2008 list. A year ago, Linux was the OS for 84.6% of the top supercomputers. In November 2008, the open source OS was used in 87.8% of the systems. Compare this to Unix, which dropped from 6% to 4.6%, mixed-OS use which dropped from 7.2% to 6.2% and other operating systems, including BSD, Mac OS X and Windows, which were all down this year from the November 2007 list.”

Microsoft is proud that a system running Windows HPC Server 2008 took 10th place… behind nine supercomputers running Linux. Even then, this was really more of a stunt than a demonstration that the HPC Server system is ready to compete with the big boys.

You see, there are no Microsoft programming tools to write supercomputer compatible applications. That will come years from now with Visual Studio 2010 and when Microsoft’s F# is more than a research project language. In short, Windows HPC isn’t ready for prime-time.

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November 25, 2008
by sjvn01
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Red Hat’s winning Fedora 10 Linux arrives

What’s the difference between a cutting-edge and a bleeding-edge product? A cutting-edge product is the newest of the new and it works. A bleeding-edge product is the newest of the new and it ‘sort of’ works. You’ll end up making a bloody mess of yourself with most bleeding-edge programs. Fedora 10, however, is a true cutting-edge Linux distribution.

Paul Frields, Red Hat’s Fedora project leader, told me that this ‘decade’ release of Fedora was the best ever without any significant bugs. Yeah. I’ve heard that before.

You know what though? Based on my early work with Fedora 10, Frields’ right. This is one clean, mean cutting-edge Linux distribution.

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November 21, 2008
by sjvn01
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SimplyMEPIS: The best desktop Linux you haven’t tried

Nowadays, everyone uses Ubuntu, most people have used Fedora, and many folks have tried openSUSE. SimplyMEPIS … not so many. That’s a shame, because this relatively obscure Debian-based desktop distribution from Morgantown, WV, is an outstanding desktop operating system. With SimplyMEPIS 8 at beta 5 and closing in on release, I tested the distribution and found it to be a keeper.

I downloaded SimplyMEPIS from one of its mirror sites and burned the ISO file to a CD, then installed it on a Dell Inspiron 530s, powered by a 2.2GHz Intel Pentium E2200 dual-core processor with an 800MHz front side bus, 4GB of RAM, a 500GB SATA drive, and an Integrated Intel 3100 Graphics Media Accelerator.

On this system, I started by running SimplyMEPIS from its live CD. It ran without a hitch, so I moved on to installing the distribution. The SimplyMEPIS installation took approximately 15 minutes. I opted to use ext3 for my filesystem, rather than ext2 and ReiserFS; it’s not the fastest or most up-to-date journaled file system, but it’s about as stable as they come.

Like most modern Linuxes, SimplyMEPIS can use the entire hard dark for the distribution, or you can modify an existing partition table with GParted. I opted to shrink down the existing Windows NTFS partition, delete the factory-installed recovery partition, and create a main primary partition and a separate primary swap partition. GParted made it easy to do, and reminded me that not so long ago changing and configuring hard drive partitions required equal parts magic and hope.

single CD distribution, MEPIS offers a limited selection of KDE 3.5.* packages out of the box. To get other software choices, you’ll need to download them from the Debian and MEPIS software repositories. SimplyMEPIS boots into a KDE 3.5.9 desktop. SimplyMEPIS’s developer, Warren Woodford doesn’t care for KDE 4.x, so he’s elected to stick with classic KDE. The older software works just fine.

The distribution itself is built on top of Debian 5 (Lenny), which hasn’t yet been released. Even so, Woodford isn’t waiting on Lenny’s release to include newer software. For example, SimplyMEPIS uses the 2.6.27.5 kernel.

You’ll also find the newest software among SimplyMEPIS’s applications. The distribution includes the newest version of Sun’s VirtualBox virtual machine, virtualbox-ose 2.0.4; the latest OpenOffice.org office suite, 3.0.0-4; and Firefox 3.0.3-3. Curiously, SimplyMEPIS 8 doesn’t include Firefox’s email sibling, Thunderbird, in its basic package. Instead, its default email program is KMail.

Of course, since SimplyMEPIS comes with the Synaptic package manager and the Debian Lenny and SimplyMEPIS repositories ready to go, installing Thunderbird, or in my case, the GNOME Evolution mail client, is no trouble at all.

While working with the applications, I found one odd error. While the distribution came with the new Adobe Flash Player 10 browser plugin installed, it would not display Flash video in Firefox. I finally solved the problem by reinstalling Flash Player from the repository.

For all other purposes, over days of use, SimplyMEPIS worked flawlessly. I used my usual applications — Firefox, Evolution, OpenOffice.org, Pidgin for IM, Banshee for music, and Konqueror for file management — and everything went as smooth as silk.

Of course, I could have used any other KDE-based distribution and gotten pretty much the same results, but SimplyMEPIS’s greatest charm is that it works so well as a seamless whole.

While you might get similar results from any KDE-based distribution, SimplyMEPIS offers something extra in its collection of four system tuning tools: MEPIS Network Assistant, MEPIS System Assistant, MEPIS User Assistant, and MEPIS X-Windows Assistant. You can get to these from the main KDE menu’s System option.

Each of these brings together important Linux controls in a logical, easy-to-use way. For example, the Network Assistant gives you control over all your network interfaces, both Ethernet and Wi-Fi, as well as DHCP and DNS settings, and lets you stop and restart network interfaces. Sure, you can do that with other Linux distributions, but SimplyMEPIS puts all the network controls you need in one place so you don’t need to search for them.

Two of the other assistants add even more functionality. The System Assistant, besides enabling you to change your computer’s name, domain, and Samba/Windows workgroup/domain and repair your boot or partitions, also lets you clone your existing desktop to a bootable USB drive. Lots of distributions, including Fedora 9, let you set up a Linux desktop on a USB drive, but, to the best of my knowledge, SimplyMEPIS is the only one to make it duplicate the one you’re already using to take with you on the road.

The MEPIS User Assistant enables you to copy or sync between desktops. Your choices include copying or syncing your entire home directory or just your mail, Mozilla, documents, or configuration directories. It’s a pretty darn handy tool both for backups and for moving from one PC to another.

The overall impact of SimplyMEPIS’s smooth integration and its user-friendly utilities is to make it a truly outstanding Linux desktop. I’ve been using desktop Linux for more than a decade, and I keep coming back to SimplyMEPIS. Version 8 is good enough that I’m not taking it off my test machine. Instead, I’ve migrated all my files to the SimplyMEPIS PC and made it my main desktop system. That’s how good it is: good enough that SimplyMEPIS is now my number one desktop.

A version of this story first appeared in Linux.com.

November 21, 2008
by sjvn01
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Reliable Linux netbooks for Black Friday

like Linux netbooks. I like them a lot. They’re lightweight, they’re solid performers, they’re cheap, and it looks like they’re soon going to be cheaper than ever.

According to Mike Elgan, starting on Black Friday, the Friday after Thanksgiving, you’ll see new, solid brand-name netbooks going for as little as $199. We’re already seeing Best Buy offering the Asus Eee PC 900a for $299. Will we see the Asus Eee PC 1000, which I like, for $399? We just might.

So if you do see great Linux netbook bargains soon, which one should you buy? I can’t claim to have seen every netbook on the market, but I have seen and used a lot of them.

Before charging out the door to buy one, though you need to think this through. You don’t want to just rush out there and grab the first cheap machine you see. For example, if your ring size is ’11,’ than a 7″ display netbook isn’t going to be for you at any price. You’ll never be comfortable with the keyboard. Personally, I like my netbooks to have at least a 9″ display. It’s a perfectly usable size, and it should have a resolution of 1,024×600.

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November 21, 2008
by sjvn01
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Microsoft will end up buying Yahoo

I predicted recently that with Jerry Yang on his way out as Yahoo’s CEO, Microsoft CEO Steve Ballmer would end up buying Yahoo.

Since then, Ballmer has declared “Acquisition discussions are finished,” while leaving the door open to some kind of searching partnering deal. As you’d expect, Yahoo’s stock price dropped yet again. At around noon on November 21st, Yahoo’s stock price, $9.29, is about a buck above its 52-week low.

A lot of people are telling me that Ballmer really doesn’t have any interest in Yahoo and that the deal is as dead as a doornail. I don’t believe that for a minute.

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November 19, 2008
by sjvn01
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64-Bit Linux Adobe Flash Player: Surprisingly good

Talk about a change in priorities! When Adobe decided it was time to start work on a 64-bit Flash Player, they didn’t release the first test version on Windows or Mac OS X. No, they released it on Linux and Solaris. Wow.

What’s just as surprising is that this new alpha release of Adobe Flash Player 10 64-bit for Linux is both fast and stable. You just don’t expect that from alpha software. Usually, alpha programs run just long enough for you to say “Yeah, I see what they’re getting at,” which is then followed by, on Windows, a system crash or on Linux or Mac OS X, an application crash.

For me, this alpha program is actually running better than the released Adobe Flash Player 10 on Linux. I’m quite serious.

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