Pre-boot Loader Bypassing OS Steps to Reduce Boot Time
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Solution Overview
Problem
The existing boot process for computer operating systems is time-consuming, requiring users to wait for the operating system to complete booting before they can use the computer, due to the sequential loading of multiple programs and dependencies on system firmware initialization.
Innovation Solution
A pre-boot loader is introduced that bypasses part or all of the steps performed by the OS loader, allowing it to load the operating system directly and reducing dependency on system firmware functions, thereby shortening the boot time by performing necessary initialization and loading tasks more efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the traditional boot process is used with multiple-stage boot loaders and system firmware initialization, then the system can ensure reliable operating system loading, but the boot time becomes excessively long
Solution Approach 1:
The pre-boot loader performs preliminary actions by pre-loading critical operating system components and initializing essential system parameters before the traditional boot process begins. This includes pre-configuring memory structures, loading kernel segments, and setting up device drivers in advance, so that when the OS loader executes, the system is already partially prepared, significantly reducing boot time while maintaining reliability
Solution Approach 2:
The invention extracts and separates time-consuming initialization tasks from the traditional boot process. The pre-boot loader isolates critical initialization functions and performs them independently before the main OS loading sequence, removing bottlenecks from the critical path while ensuring that all necessary system firmware functions are still executed in proper sequence
2Loss of time
If the pre-boot loader bypasses OS loader steps to reduce boot time, then the boot time is significantly reduced, but the dependency on system firmware functions is reduced
Solution Approach 1:
The pre-boot loader performs preliminary initialization of system firmware functions before bypassing the OS loader, ensuring that all necessary firmware routines are properly set up and validated in advance. This includes initializing interrupt controllers, memory management units, and device interfaces beforehand, so that the bypassed OS loader steps can be safely skipped without compromising system reliability
Solution Approach 2:
The invention implements a dynamic boot process where the pre-boot loader adaptively determines which OS loader steps can be bypassed based on system configuration and hardware detection. The system dynamically adjusts the boot path, performing necessary firmware initializations only when needed, and bypassing redundant steps, thereby optimizing the balance between boot time reduction and firmware function dependency
Data Source
AI summary
A pre-boot loader reduces the boot time of an operating system (OS). An OS is typically loaded by its own OS loader. A pre-boot loader is typically a software module in the system firmware or the pre-boot environment that loads the OS loader, which in turn loads the OS. In one embodiment, the pre-boot loader bypasses part or all of the steps performed by the OS loader, which shortens the loading time of the OS loader and the OS. In another embodiment, bypassing the steps of the OS loader reduces dependency on the system firmware functions. The system firmware takes advantage of this to further reduce boot time, by executing the pre-boot loader earlier instead of waiting until the full completion of system initialization by the system firmware.