Posts Tagged ‘Linux’

Intel Xeon E5 Heads to Linux

March 12th, 2012

Linux server users won’t have to wait long to benefit from the new Intel Xeon E5 processor, announced earlier this week. Hardware vendors and Linux operating system vendors alike are ready to leverage Intel’s latest server chip architecture.

“The latest Intel server is significant in that it delivers higher density with low power consumption,” Jim Totton, GM and VP, Platform Business Unit at Red Hat told InternetNews.com. “In addition, the plans to support PCI-e 3.0 is important future-proofing so that customers will be able to take advantage of and fully realize the benefits of direct I/O with the data intensive workloads that are rapidly being deployed.”

Both Red Hat and SUSE are certified on multiple hardware vendor platform for the Intel E5, including servers from HP and Dell.

Jeff Carlat, director of Marketing, Industry Standard Servers and Software at HP, told InternetNews.com that HP has already added ProLiant Gen8 severs (BL460c Gen8, DL360p Gen8, DL380p Gen8, ML350p Gen8, SL230s Gen8, and SL250s Gen8) into its supported server lists for Red Hat Enterprise Linux 5, Red Hat Enterprise Linux 6, SUSE Linux Enterprise Server 10 and SUSE Linux Enterprise Server 11.

Kevin Noreen, director of Dell Systems Management Marketing also told InternetNews.com that Dell has been working closely with Red Hat and SUSE in the ramp-up for certifications for Dell’s 12G Intel E5 platform.

“Because of our tight collaboration with Red Hat, SUSE and Intel, all shipping device drivers on 12G are native to both RHEL and SLES,” Noreen said. “That has always allowed Dell to maintain a simplified approach to deployment and implementation of Linux on x86 architectures, including the E5 platforms.”

The road toward Intel E5 support is one that started long before this week’s official announcement from Intel.

“In addition to having several Intel engineers working with Red Hat, both companies extensively test code as it is being developed,” Red Hat’s Totton said. “So, by the time a system partner receives a beta or GA version of Red Hat Enterprise Linux, there has been a considerable amount of debugging that has already occurred. This allows our system partners to focus on peripherals and value-added software.”

There are also some specific optimizations that both the hardware and software vendors have been able to achieve for Linux running on the E5.

“Building on the foundation of open source contributions made by both companies, SUSE Linux Enterprise Server provides an enhanced and tuned Linux kernel that supports very large environments with performance,” Mark Blackwell, director, Alliance Relations and OEM at SUSE told InternetNews.com. “Advanced support for aspects of the hardware architecture such as NUMA (non- uniform memory access) help drive up throughput in the memory subsystem and enhance scalability.”

One of the key new features in the Intel E5 is the new Data Direct I/O, which delivers more LAN bandwidth. Red Hat’s Totton noted that the performance teams from Red Hat and Intel spent a lot of time testing and characterizing direct I/O, then tuning and optimizing it with various mission critical workloads.

SUSE’s Blackwell noted that SUSE Linux Enterprise Server (SLES) adds capabilities such as robust support for low-power states, power-usage profiles and other features of the Linux kernel and hardware platform to Intel’s E5.

“To add flexibility and room for innovation with regard to storage resources, SUSE Linux Enterprise Server 11 SP2 supports using swap-over NFS (network file system) over IP and Fibre Channel over Ethernet (FCoE) to pass storage traffic over shared Ethernet connections with LAN and management traffic,” Blackwell said. “Finally, advanced resource-management capabilities allow for fine-grained, centralized control of hardware resources.”

For the hardware vendors, Linux is a crucial market for its Intel E5 based server deployment, particularly in the cloud.

“20 percent of Dell mainstream servers run Linux today–and a much higher percentage in cloud environments,” Noreen said “It is extremely important that we meet the needs of our Linux install base.”

Source:http://www.serverwatch.com/server-news/intel-xeon-e5-heads-to-linux.html

IBM puts secure Windows, Linux in the cloud via USB

March 8th, 2012

IBM designed the Secure Enterprise Desktop technology for businesses that want to secure employee-owned devices while making sure that all the company’s data is backed up to a corporate or IBM-operated datacentre. Bring your own device (BYOD) is an thorny topic for IT managers under pressure to allow corporate use of devices owned by employees.

IBM’s Secure Enterprise Desktop technology was shown to ZDNet UK at CeBIT in Hanover on Wednesday. It uses a USB stick with its own HTTPS stack, bootloader and proprietary code to create a secure connection between a partitioned drive on the client computer and a remotely located server. IBM was hoping to find businesses at the show to test the prototype and ultimately buy the service.
USB device

The bootloader is run from a processor on the USB device. If the client PC is compromised at a deep level, the user is protected, according to IBM. The technology cuts out the host operating system and hardware, and authenticates directly to a secure server.

“You take a computer, you boot from this device, this device establishes via its own processor a connection to the server, then there’s a two-way authentication so the server knows who you are and you know the server is the server,” Paolo Scotton, a computer security scientist at IBM’s research labs in Zurich, told ZDNet UK. “Once you establish this connection you download a small [kernel-based virtual machine] hypervisor.”

Once the hypervisor is downloaded, the computer lets the user select a Linux or Windows operating system to be provisioned from the remotely hosted server. IBM has developed a driver for the kernel-based virtual machine (KVM) hypervisor that “monitors access from the OS to the disk and brings down only the blocks that are needed”, Scotton said, which helps the operating system be more responsive.

As the user performs actions on the client device data is written in an AES-256 encrypted format to the partitioned disk and any changes are replicated back to the cloud-hosted operating system. If the USB stick is removed, the operating system instantly shuts down as the connection to the remote server has been cut. If this happens, the person can re-insert the stick, which then re-authenticates with the server and lets the person use the OS again.

There is also an option to download the host operating system from the cloud so the person can use the client PC without an internet connection. Over a gigabit connection a full download of a populated Windows 7 operating system should take around 10 minutes, Scotton said.

On the infrastructure side, the technology requires a Linux server with Apache and OpenLDAP, an open-source implementation of the Lightweight Directory Access Protocol, which can be hosted either in an IBM or private datacentre. The client side requires a Windows or Linux computer with a 64-bit processor.

IBM is experimenting with a BitTorrent-based method for letting multiple distributed servers collectively pass the OS image to the client computer. This speeds loading times and adds redundancy, Scotton said. The technology is innately scalable, he said, as the OS is accessed on a block-by-block basis.

IBM hopes to release the technology as a commercial product within a year, and is looking for businesses to carry out test pilots, ZDNet UK understands.

Source:http://www.zdnet.co.uk/news/security-management/2012/03/07/ibm-puts-secure-windows-linux-in-the-cloud-via-usb-40095212/

Hackers print tiny Linux box to net up your home

March 5th, 2012

The Raspberry Pi is a tiny computer designed to get you writing programs. Here’s a tiny computer designed to get things done in your home and out of it without writing a single line of code.

Called the Ninja Block, it’s an open source hardware gadget running Linux that’s designed to accept feeds from external sensors – it has some on board too, including a thermometer and an accelerometer – and route the data to the web.

Prototype Ninja Block (right) with a motion sensor
You use the web-hosted control system, called Ninja Cloud, to set up simple rules to trigger web services and devices connected to a Ninja Block, based on the incoming signals. It’s largely done with drag and drop.

Inputs can come from the web too – Xbox Live sign ins, files arriving in your Dropbox, incoming Tweets, Facebook mentions – and even from Apple’s Siri voice control tech.

Each Ninja Block has an Ethernet port for connectivity and a simple LED for feedback. Reference schematics for the hardware have been posted online under a Creative Commons licence. It’s based on the Beagle Bone board.

The Block connects to other sensors through its four expansion ports, and there are specs for that too. The guys behind Ninja Block are working on an initial array of humidity, motion, light, sound and distance sensors, plus a simple push button trigger.

You can also connect by USB, or reserve that for a Wi-Fi dongle. You can add controllers too, such as infrared beamers.

And just to keep the tech cutting edge, the Block and its sensors come in a 3D printed casing. It’s driven by a 5V power supply, but could be rigged up with batteries for outdoors and mobile applications.

The Ninja team is currently taking orders for Ninja Blocks through pledges made on find-me-funding site Kickstarter – the more you pledge, the more kit – and other goodies – you get. Ninja Blocks ship their kit internationally.

Source:http://www.reghardware.com/2012/03/02/ninja_blocks_do_for_home_automation_what_raspberry_pi_does_for_programming/

Linux micro-computer is nine shades of cool

February 29th, 2012

FXI is preparing to launch the Cotton Candy, a tiny computer that is so small it looks like a USB thumb drive.

It runs either Ubuntu or Android 4.0, has a dual-core 1.2GHz ARM Cortex-A9 CPU, 1GB of RAM, and a Mali 400MP GPU stuffed under the bonnet. The configuration allows it to decode high-definition video which makes it useful as an entertainment machine.

It has a USB plug on one side, which is used to power the system, and an HDMI plug on the other which allows it to be plugged into a display. Other connections can be made using a built-in WiFi and Bluetooth system.

According to the company, it can be booted as a standalone and operate as a complete computer when plugged into a display. If you plug into a conventional computer it is possible to boot from as if it were a regular USB mass storage device.

The gadget is up for preorder and it is expected to ship in March. The standard retail price is $199 plus tax and shipping, which is a bit more expensive than entertainment hubs but it appears that it can do a lot more.

Source:http://news.techeye.net/hardware/linux-micro-computer-is-nine-shades-of-cool

Details Emerge About the Spark Linux-Based Tablet

February 6th, 2012

There’s a new tablet in town (well, on its way to town, at least) called the Spark. The Linux-based tablet, based on the Zenithink C71, was announced several days ago, but the fellow behind the project, KDE developer Aaron Seigo, released more details on his blog in a convenient Q&A format.

He revealed that the tablet (about $265 USD) will be available for pre-order this week and will start shipping worldwide in May. In terms of specifications, the 7-inch (800×480) multi-touch tablet will run a 1GHz AMLogic ARM processor and Mali-400 GPU and sport 512MB of RAM, 4GB of internal storage (with a microSD slot for expandability), 802/11b/g WiFi, a pair of USB ports, a front-facing 1.3MP webcam, and an audio jack.

There are plans to add 3G and GPS functionality in later versions of the tablet, as well as beefed-up hardware specs. The UI of choice is Plasma Active, and there will apparently be a content store where developers can peddle their wares and users can snag software.

The Spark project isn’t just some cheap tablet being churned out half-heartedly by a company looking to cash in on the latest tech craze. This looks to be a labor of love for Seigo and others behind Spark, and it’s rooted in their ideology.

“The people who get to use these tablets will have in their hands a device that is more than an application bucket that sees them as a consumer,” said Seigo in the original blog post announcing Spark. “They will have a device that places value on who they are and what they are doing. This lies at the heart of Activities in Plasma Active and the open software stack will drive that trend further. Perhaps best of all: there’s no walled garden to get locked into or which can be taken away.”

Spark isn’t likely to suddenly glom tablet market share away from Apple and Google, but competition of any kind is good for consumers, and this particular project presents an attractive tablet alternative to those who chafe at what industry behemoths offer.

Seigo also noted that the tablet will indeed blend, although that would void the warranty.

Source:http://hothardware.com/News/Details-Emerge-About-the-Spark-LinuxBased-Tablet/

How to set up Linux on your computer

February 2nd, 2012

Are you fed up with Microsoft Windows and ready to give Linux a try? Here’s how to get started. This guide for Linux discusses who the Linux OS is right for, what you need to get started, and how to turn your Windows PC into a dual-boot computer so you can have the best of both worlds – Linux and Windows.

Why try Linux?
Linux will never be as popular a desktop operating system as Microsoft Windows or Mac OS X, but there are some good reasons to give Linux a try.

For starters, you can download and install Linux for free. Applications that run on Linux machines tend to be free as well, and they include PC essentials such as office productivity suites, image editing software, and video editing tools. Though Linux is not immune to viruses, malware is rarely a concern in the Linux world, especially for home users. And because Linux is less of a PC resource hog than Windows and the Mac OS, it’s ideal for use with a laptop, a netbook, or an older desktop.

Finally, as Web services and HTML5-based apps play an increasingly dominant role in our computing lives–from music services such as Pandora to Yahoo Mail to Google Docs to Bing Maps to countless games–the operating system begins to play second fiddle to the Web. Linux is a dirt-cheap alternative to dropping $500 on PC that can run Windows 7.

Who should use Linux?
Linux can be a good choice for anyone, but two types of users are likely benefit most from Linux: power users and nontechnical users.

Power users will enjoy Linux, because it’s a flexible, highly customisable OS that they can adapt to suit their needs in such areas as the look of the desktop or the ability to prevent any extra software from adding bloat to the system.

Linux is also great for nontechnical users who just want a computer that’s easy to use, has many applications available for download, and doesn’t require a lot of maintenance. Thanks to Linux distributions such as Ubuntu that are easy to install and use, Linux is no longer “difficult to use.”

What is Linux?
Linux is a Unix-like open-source operating system that uses the Linux kernel as its base and comes packaged with basic software, including a lot of components from the GNU (pronounced Guh-new) project.

There is some debate among Linux users about whether it’s correct to call the open-source operating system Linux or GNU/Linux to reflect the fact that Linux distributions are loaded with software from the GNU Project. GNU is another Unix-like operating system, but one that lacks a usable kernel. Typical pieces of GNU that you’re likely to come across in Linux include the Bash shell and assorted command-line utilities, GNU Emacs, Gnu Image Manipulation Program (GIMP), GNOME, and GNASH (a Flash player replacement).

Know your components
Three main elements of a Linux operating system come up often in discussions of Linux: the distribution, the desktop environment, and the Linux kernel. These components, along with software from GNU, constitute the basic parts of your Linux distribution.

Distribution

The all-important decision in the Linux world involves figuring out which version (called a distribution or distro) you want to use. Options include popular distributions such as Ubuntu and Linux Mint that are relatively easy to install, as well as more-complex and customizable distros such as Arch Linux. To figure out what each distribution looks like and what it offers, consult the website DistroWatch, which offers screenshots, download links, and reviews for more than 300 Linux distros. According to DistroWatch, the five most popular Linux versions at this writing are Linux Mint, Ubuntu, Fedora, OpenSUSE, and Debian.

Take some time to poke around DistroWatch and read the descriptions of various Linux distributions to see what each offers, what they look like in a default configuration, and what others think of the OS. Linux newbies will probably do best with Ubuntu or Mint, as these distributions are easy to install and offer the fewest problems for first-time users.

You should also be aware that many distributions in the Linux world are built using other distributions as a base. Mint, for example, is based on Ubuntu, which is a variant of Debian.

To see whether any known problems exist for running Linux with your PC model, check out the user forums for your distribution. Though this usually isn’t an issue, it does come up from time to time, just as it does with Windows.

If you’re buying a new computer, check to see which hardware runs best with the distribution you want to use. Ubuntu, for example, has a certified hardware page that details which desktops, laptops, and notebooks are known to work well with Ubuntu.

The desktop environment

Your desktop environment is your system’s user interface. It determines how windows and icons are styled and how you navigate through your system. Among the many different desktops available in the Linux world are Gnome, KDE, Xfce, and LXDE. Ubuntu maker Canonical released a new desktop interface in April 2011 called Unity, which is based on Gnome.

The desktop contains various components, but at this point it’s enough to know that you are free to choose pretty much whichever desktop environment you want to use. Distributions such as Ubuntu, Mint, and OpenSUSE provide an array of different desktops that you can easily install. Ubuntu 11.10, for example, offers Unity, but you can easily install variants of Gnome. Another alternative is to use KDE in Ubuntu–either by downloading Kubuntu (a variation on the Ubuntu system that installs KDE as your default desktop) or by installing KDE in the standard version of Ubuntu.

The best choice for beginners is to stay with the default desktop environment for your distribution. But desktops in Linux are interchangeable; so as you become more comfortable using Linux, you can try out different desktops to see which one you like best.

Linux Kernel

The kernel – the software layer that acts as the go-between for your applications and your PC hardware – is the core of any Linux system. This is the component that you are least likely to have to deal with as part of maintaining your system, especially if you choose a beginner-friendly system such as Ubuntu or Mint. But as you delve into the Linux world, you’ll probably find people talking about the kernel on forums and help sites, so it’s helpful to know what the term refers to.

The stable version of the kernel at this writing is version 3.2.2. If you choose, you can update your kernel as new versions come out, but it’s much simpler to wait for your particular distribution to roll out kernel updates.

Time to try Linux
Now that you have a sense of how some of the Linux distributions differ, it’s time to try out a few and see what you think. Unlike with Windows, you don’t have to buy a CD or purchase an access code; instead, you can just hop online and download any distro you want to try, for free. And if you don’t have the bandwidth to download Linux, many distros will send you an installation CD by mail (usually for a nominal fee).

Many distros – including Debian, Fedora, OpenSUSE, Linux Mint, and Ubuntu – also offer downloadable live CDs. Live CDs let you run the operating system without installing it on your hard drive. That way you can get a better sense of what it will be like to use a particular distro. Live CDs tend to be less responsive (and to run slower) than the actual operating system. The main thing to focus on with live CDs is the look and feel of the interface and the way the system is organised.

To create a live CD you must download the OS and then create a disc image on a blank CD, external hard drive, or USB flash drive. If you’ve never copied or burned a bootable disc image, try Ubuntu first before moving on to other distros. Canonical has a convenient step-by-step online guide for downloading and creating an Ubuntu live CD using Windows or OS X.

Let’s get serious
Okay, you’ve tried out a bunch of live CDs, and now you’re ready to install Linux on your PC. Let’s assume that you’ve decided to go with Ubuntu and that you’re installing it on a Windows machine (yes, some people do install Linux on a Mac). If you are new to the Linux world and still rely on Windows for certain programs, or if you need to use Windows for your job, you can install Linux alongside Microsoft’s OS in a dual-boot configuration. This way, each time you boot up your system, you can choose to run either Windows or Linux.

Ubuntu comes with a handy feature called Wubi (Windows-based UBuntu Installer) that lets you access Ubuntu inside Windows as if it were an application. Like a live CD, Wubi may cause Ubuntu to run a little bit slower than it normally would, but it will give you the chance to acclimate to Linux if you aren’t willing to jump in right away.

Once you learn your way around the system, Linux is just as easy to use as Windows or Mac OS. But Linux differs from those systems, and consequently it takes some getting used to. For this reason, you may want to take your Linux transition slow.

The alternative is to adopt what my colleague Tony Bradley calls the scorched-earth option: Wipe out Windows and install your Linux distribution as the sole OS on your machine. This is the method I chose when I moved to Linux full-time, and I found that going this route was fairly easy. The only major drawback of this approach involves needing to run a piece of custom software built on Windows or OS X for your job. If that’s your situation, you should probably go with a dual-boot solution.

Creating a dual-boot environment doesn’t require much heavy lifting. Many Linux distributions provide step-by-step instructions for installing Linux on a Windows PC in a way that supports peaceful coexistence. Ubuntu offers dual-boot setup directions, as does OpenSUSE. Also, consult PCWorld’s “How (and Why) to Partition Your Hard Drive” for advice on how to lay the groundwork for creating a dual-boot PC.

The terminal (mostly optional)
You can spend your whole computing life inside Linux and rarely have to open a command line prompt to get things done. Nevertheless, learning at least a few basic operations can be helpful, though doing so is entirely optional.

Bash (Bourne again shell) is the standard command line interpreter for most Linux distributions (as well as for Mac OS X), and it’s a lot easier to use than you might think. Among the helpful commands that you may wish to learn are how to create empty files and directories (folders), how to search for and kill a running process on your system, how to view hidden directories, how to switch between directories, how to open files and applications, the ‘locate’ command, the ‘find’ command, and the ‘grep’ command. At some point you may also want to learn how to install an application from the command line; but with a system such as Mint or Ubuntu, that method should rarely be necessary.

You can find many novel uses for the command line, too. For instance, you can use Bash to run a text-only Twitter client called TTYtter, learn to use command-line text editors such as Vi or Emacs, try a simple to-do list program called Todo.txt, use Python as a handy calculator, browse the Web with the text-only browser Lynx, run system backups using Rsync, create text shortcuts (called aliases) for executing daily tasks, and automate tedious or repetitive tasks (such as backups) using Cron. All of these operations and programs are much simpler to use than you might think, and learning them will greatly enhance how you use your computer.

Even if you’re not interested in the command line, you may need to access the Terminal to deal with occasional (but increasingly rare) hardware problems such as adjusting a laggy mouse driver. Otherwise, you can live happily inside Linux without ever opening the Terminal program.

Ubuntu Software Center
If you decide to go with Ubuntu as your distribution, you’ll pick up most of your applications from the Ubuntu Software Center, an online store for downloading and installing applications and utilities. The Ubuntu Software Center began shipping with Ubuntu in 2009 and subsequent Ubuntu releases have included incremental improvements. The store currently offers numerous free software packages as well as some paid apps. Using the USC is as simple as searching for a program and clicking Install.

By default, Ubuntu comes with a lot of great software, including Mozilla Firefox and Thunderbird (email client), the Libre Office suite, Gedit text editor, and GIMP. Those applications also come with many other Linux distributions; or you can install them after initial setup. You can get a lot of popular third-party software for Linux, just as you can for Windows and OS X; examples include Google’s Chrome browser, Skype, Spotify, and Scrivener – a popular word processor designed for professional writers. Much of this software, including Skype, Spotify, and Scrivener, tends to be marked “beta.” But don’t let that scare you off: All three work very well in Linux.

If you can’t find a Linux version of the software you need, you can try running Windows apps in WINE, a program designed to handle that task inside Linux. WINE may not be able to run every program you throw at it. But if you absolutely need a piece of Windows software, and no Linux alternatives are available, give WINE a try.

Finding help
If you run into problems while using Linux – whether hardware issues, software installation problems, or something else – you can turn to numerous online forums for help. Typically each distribution maintains its own forum where you can seek out assistance, and many third-party sites are full of solid advice, too.

The best way to find help is to start with a simple Web search for the problem you’re having. Searches often lead Ubuntu users to the official Ubuntu user forums, but Stack Exchange’s Ask Ubuntu is also a good source for information.

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When researching problems, you may find that the first few sites you visit may offer complex and over-the-top solutions that require 15 lines of code or mucking about with some file buried deep in your operating system. But chances are that any issues you come up against as a beginner will be comparatively trivial and easy to solve.

Consequently, the best way to research your problem is to assume that it can be solved with a few simple mouse clicks or less than one line of code entered at the command line. There are exceptions to that rule, of course; but if you begin by assuming that the answer to your problem is simple and exhaust all of the straightforward possibilities before moving on to far more complex solutions, you’ll save yourself a lot of time and hassle.

These basic tips should help you get started with Linux. So give a few live CDs a try, and see what you think. You’ll be surprised at just how useful a Linux system can be.

Source:http://howto.techworld.com/operating-systems/3334504/how-set-up-linux-on-your-computer/?intcmp=ros-md-hwt

Windows 8 hardware rules ‘derail user-friendly Linux’

January 19th, 2012

The question of whether Secure Boot technology in UEFI firmware could exclude Linux from PCs running Windows 8 has taken a fresh twist.

Red Hat engineer Matthew Garrett, one of the first to flag up the Unified Extensible Firmware Interface issue, has blogged that Microsoft’s rules for certified Windows 8 hardware do not make it easier to boot Linux despite what some have claimed.

Redmond’s requirements mention the existence of a boot option for PCs that can fire up a digitally signed Linux kernel. This custom boot-mode would allow the user to modify the contents of the machine’s Secure Boot signature database and the platform key (PK) that verifies kernels during system start-up.

This, according to Garrett, implies the user can install their own keys, including ones provided by Linux vendors, to run whatever operating system they want. While this sounds conceptually simple, Garret points there are lot of practical details missing, a fact that will make working with Microsoft’s key infrastructure harder.

Garrett wrote that this might dissuade people from bothering to install Linux on a Windows 8 PC:

People have spent incredible amounts of time and effort making it easy to install Linux by doing little more than putting a CD in a drive. Asking them to go into the firmware and reconfigure things adds an extra barrier that restricts the ability to install Linux to more technically skilled users.

Garrett adds that among the details missing from Microsoft’s documents is a description of a user interface to enable people to install and manage keys, meaning they must fiddle around by hand in the firmware settings. This lack of definition also makes it possible for competing PC makers to confuse the situation further by coming up with their own vendor-specific UIs. Also, the key format itself has not been described and there’s no description on how to use custom mode for unattended remote or automated installs of Linux on a Windows 8 machine.

Garrett first blogged about Microsoft’s Windows 8 Secure Boot in September last year. The normally non-communicative executive leading Windows 8, Steven Sinofsky, actually responded with a blog post claiming the “customer” would be in control of their PC with UEFI Secure Boot. Garrett shot back saying that by “customer” Microsoft must mean the PC manufacturer because there’s no guarantee ordinary punters would get the signing keys.

It’s the keys that are critical to thwarting hackers by stopping them from installing unauthorised malware – such as rootkits – that start before the operating system and undermine a computer’s security. It will be left to PC and device makers to follow Microsoft’s UEFI requirements; they have the power to decide whether to go with custom or standard boot-mode on their machines. That said, Microsoft’s hardware certification requirements don’t offer the option of custom mode to makers of ARM devices. On page 116 of the requirements:

On an ARM system, it is forbidden to enable Custom Mode. Only Standard Mode may be enabled.

21. MANDATORY: Enable/Disable Secure Boot. On non-ARM systems, it is required to implement the ability to disable Secure Boot via firmware setup. A physically present user must be allowed to disable Secure Boot via firmware setup without possession of PKpriv. Programmatic disabling of Secure Boot either during Boot Services or after exiting EFI Boot Services MUST NOT be possible. Disabling Secure MUST NOT be possible on ARM systems.

By targeting ARM, Microsoft hopes to punt its Windows operating system onto tablets. Some have said this might mean Windows 8 will be locked to specific hardware, and therefore only OEMs can do the fiddling. Microsoft is not commenting.

It’s a reasonable line of thought and reinforces the thinking that Windows 8 on ARM will be for specific-use tablets such as readers – like the Kindle – that are typically deliberately and firmly locked down by the maker for various commercial and technical reasons.

Another possibility is this: Microsoft is taking no chances on those first Windows-8-on-ARM machines falling over, thereby avoiding embarrassment and backlash. Lockdown is a policy Microsoft has implemented elsewhere – notably on the first Windows Phone 7 phones, which were blocked to third-party apps on version 7.0 and only opened up with 7.5, codenamed Mango.

Source:http://www.theregister.co.uk/2012/01/18/windows_8_linux_secure_boot/

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