rEFInd is a fork of the rEFIt boot manager. Like rEFIt, rEFInd can auto-detect your installed EFI boot loaders and it presents a pretty GUI menu of boot options. rEFInd goes beyond rEFIt in that rEFInd better handles systems with many boot loaders, gives better control over the boot loader search process, and provides the ability for users to define their own boot loader entries.
Alternative PE to rescue, hack or troubleshoot your machine or network
TeutonPE is inspired by PortableApps.com combined with a PeBuilder compiled Boot USB / CD. Programs can be used, even when there is no OS installed. BB4win is used for Live Menu and as the default Shell.All Plugins are also BartPE & XPE compatible
Operating system project from scratch to design and implement all components from boot strapping,hardware interrupts , memory manger ,file system , etc .
The Trion Object Oriented Operating system is an OS that is designed to meet the needs for the 21st century, with a kernel written in C++ and modelled in UML, and lots of features. The project is run by a team of OSDev.org community members.
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Agnix is an educational, network operating system kernel. It is ideal starting point to learn about operating systems. The main goal of the project is to provide a network kernel fully compatible with the Linux Kernel in the system call layer
Committed to the development of fundamental ACPI (Advanced Configuration and Power Interface) components for Linux. This includes a generic ACPI table parser, AML interpreter, bus and device drivers, policy, user interface, and support tools.