Linux 3.3 Release

Linux Torvalds announced the release of Linux Kernel 3.3 on the 18th of March: So after the extra -rc release last weekend, now the final 3.3 is out there in the usual locations. Things did indeed calm down during the last week, and the shortlog looks pretty boring. The diffstat from -rc7 is dominated by the arch/tile defconfig changes, the rest is pretty small, although there are changes spread out in various subsystems (drivers, filesystem, networking, perf tools). … And obviously, the 3.3 release means that the merge window for 3.4 is now open, although I may keep of pulling stuff for a day or so to encourage people to test the actual release. Linux 3.2 brought ext-4 and btrfs file system improvements, support for Qualcomm Hexagon processor, an improved profiling tool (perf top), and better CPU and network bandwidth management. Linux 3.3 brings the following key changes: Android merge: As announced at the end of last year, the Android …

Support CNX Software – Donate via PayPal or become a Patron on Patreon

Online Petition Requesting to Allow Linux Installation on Windows 8 Devices

Back in September, some concerns emerged about UEFI secure boot requirement for Windows 8 and its possible consequences on Linux and other open source operating systems: it may be impossible to install such systems on computers or devices shipped with Windows 8, either by replacing Windows 8 or in a dual boot installation as the bootloader (UEFI) would prevent such installation for security reasons. Microsoft has already replied to those concerns and stated that: At the end of the day, the customer is in control of their PC. … We work with our OEM ecosystem to provide customers with this flexibility. The security that UEFI has to offer with secure boot means that most customers will have their systems protected against boot loader attacks. For the enthusiast who wants to run older operating systems, the option is there to allow you to make that decision. So there should be an option to disable/enable “Attempt Secure Boot” as shown below (UEFI …

Support CNX Software – Donate via PayPal or become a Patron on Patreon

Embedded MasterClass Conference Schedule in Cambridge, UK

Embeded MasterClass will take place in Cambridge on the 5th of October 2011. This conference will give you the chance to meet with embedded systems engineers from many of the world’s leading vendors and you’ll be able to attend presentations and workshops free of charge. Here’s the presentations’ schedule for the event: Time Stream 1 Stream 2 8.30 – 9.30 Tea/Coffee – Meet the Exhibitors 9.30 – 10.15 1: Leveraging the Performance of Intel® Architectures in low power, fan-less solutions with the latest Intel® Atom™ processor-based platform. Regis Cheval CEng MIET, Intel® Atom™ Platform Application Engineer – Intel 10.30 – 11.15 2: Proving your code quality. Barry Lock – Lauterbach 3: Developing reliable embedded systems using COTS and custom processors. Michael Pont, CEO – TTE Systems 11.15 – 11.45 Coffee and Exhibition 11.45 – 12.30 4: Strategic Research Agenda. Helen Finch – Artemis and Infineon 5: Safely from Conception to Completion. Chris Hills – Phaedrus Systems Ltd 2.30 – 13.30 …

Support CNX Software – Donate via PayPal or become a Patron on Patreon

UEFI Secure Boot – Windows 8 vs Linux

Last week, Microsoft showcased Windows 8 PCs with super fast boot thanks to the Unified Extensible Firmware Interface (UEFI). The latest UEFI standard, released on April 8, includes a secure boot protocol which will be required for Windows 8 clients. Secure UEFI is intended to thwart rootkit infections by requiring keys before allowing executables or drivers to be loaded onto the device. Problem is, such keys can also be used to keep the PC’s owner from wiping out the current OS and installing another option such as Linux. It all started with slide 11 in one Powerpoint presentation entitled “Delivering a secure and fast boot experience with UEFI”  presented by Arie van der Hoeven, Principal Lead Program Manager Microsoft Corporation during Build conference: Secure boot Current issues with boot Growing class of malware targets the boot path Often the only fix is to reinstall the operating system UEFI and secure boot harden the boot process All firmware and software in …

Support CNX Software – Donate via PayPal or become a Patron on Patreon

Bootloader to OS with Unified Extensible Firmware Interface (UEFI)

Unified Extensible Firmware Interface (UEFI) is a specification detailing an interface that helps hand off control of the system for the pre-boot environment (i.e.: after the system is powered on, but before the operating system starts) to an operating system, such as Windows or Linux. UEFI aims to provides a clean interface between operating systems and platform firmware at boot time, and supports an architecture-independent mechanism for initializing add-in cards. UEFI will overtime replace vendor-specific BIOS. It also allows for fast boot and support for large hard drives (> 2.2 TB). There are several documents fully defining the UEFI Specification, API and testing requirements: The UEFI Specification (version 2.3.1) describes an interface between the operating system (OS) and the platform firmware. It describes the requirements for the following components, services and protocols: Boot Manager Protocols – Compression Algorithm Specification EFI System Table Protocols – ACPI Protocols GUID Partition Table (GPT) Disk Layout EFI Byte Code Virtual Machine Services — Boot …

Support CNX Software – Donate via PayPal or become a Patron on Patreon