US20110307690A1 - System and method for rapid boot of secondary operating system - Google Patents
System and method for rapid boot of secondary operating systemDownload PDFInfo
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- US20110307690A1 US20110307690A1US13/216,777US201113216777AUS2011307690A1US 20110307690 A1US20110307690 A1US 20110307690A1US 201113216777 AUS201113216777 AUS 201113216777AUS 2011307690 A1US2011307690 A1US 2011307690A1
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- operating system
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4406—Loading of operating system
- G06F9/441—Multiboot arrangements, i.e. selecting an operating system to be loaded
Definitions
- the present inventionrelates generally to systems and methods for rapidly booting secondary operating systems of computers.
- some computersare configured to execute functions that may otherwise be performed by special purpose devices.
- some notebook computersare configured to be used as simple DVD players, or as wireless telephones, or as email devices.
- the present inventionrecognizes that a simpler secondary operating system with correspondingly limited device drivers may be stored on the HDD to be booted in lieu of the computer's primary operating system. In this way, if all a user wishes to do is to use the computer for a relatively simple function and then shut the computer down, booting time can be reduced because only the relatively smaller secondary operating system associated with the desired function need be booted into memory.
- BIOSbasic input-output systems
- a method for reducing boot time of a secondary operating system of a computerthat includes a processor accessing a hard disk drive (HDD).
- the HDDincludes one or more disks storing the secondary operating system and a primary operating system.
- the HDDalso includes a non-volatile solid state memory (NVM).
- the methodincludes receiving a power on signal that indicates whether the primary operating system or the secondary operating system is to be booted. If the primary operating system is to be booted, the disk(s) are spun up and the primary operating system is booted from disk into the main memory of the computer. If the secondary operating system is in the NVM, the NVM is flushed such that the NVM can be used as HDD cache. When a power down signal is received, the secondary operating system is copied from disk to NVM and then the computer is powered down. In contrast, if the secondary operating system is to be booted, it is booted directly from the NVM without spinning up the disk.
- the NVMcan be a flash memory.
- the computercan include a first manipulable power on element and a second power on element.
- a power on signal indicating that the primary operating system is to be bootedis generated when the first power on element is manipulated.
- a power on signal indicating that the secondary operating system is to be bootedis generated when the second power on element is manipulated.
- a computer systemin another aspect, includes a processor, a computer memory accessible by the processor, and a hard disk drive (HDD) accessible by the processor and including at least one disk and a non-volatile solid state memory (NVM).
- a primary operating systemis stored on the disk for booting thereof under control of the processor into the computer memory in a first condition.
- a secondary operating systemis on the disk and is also on the NVM for booting the secondary operating system from the NVM under control of the processor into the computer memory in a second condition.
- a computerin still another aspect, includes processing means for booting and disk means for storing a primary operating system and a secondary operating system.
- Non-volatile solid state memory (NVM) meansare provided for storing the secondary operating system.
- the processing meansboots the primary operating system from the disk if a first power on signal is received. If, however, a second power on signal is received, the processing means boots the secondary operating system from the NVM means without spinning up the disk.
- FIG. 1is a schematic diagram of a non-limiting computer system
- FIG. 2is a flow chart of the present logic.
- a non-limiting computer systemis shown, generally designated 10 , which includes a hard disk drive (HDD) 12 having a housing 20 , and the housing 20 supports a HDD controller 22 .
- the controller 22is electrically connected to at least one hard disk 24 .
- the disk(s) 24store both a primary operating system 26 and at least one second operating system 28 . Additional secondary O.S. can be provided for booting from NVM in accordance with principles set forth further below.
- the controller 22also accesses a non-volatile solid state memory (NVM) 30 that can be, without limitation, a flash memory device.
- NVMnon-volatile solid state memory
- a host computer 32accesses the HDD 12 , and as set forth further below, when the host computer 32 remains in the off mode, the NVM 30 contains a copy of the secondary operating system 28 that is stored on the HDD. This copy is kept in the NVM 30 for easy accessibility during a secondary operating system boot but is deleted from the NVM 30 if the primary operating system 26 is booted, because the primary operating system 26 typically uses the NVM 30 for other purposes (e.g., as a cache) while the primary operating system is in use.
- NVMnon-volatile solid state memory
- the host computer 32includes a computer processor 34 and a non-limiting main memory 36 .
- the processor 34accesses the HDD 12 using an internal HDD controller 37 .
- the non-limiting memory 36may include any hardware associated with active computer memory, e.g. RAM memory, that is utilized by the host computer 32 to execute user commands.
- the host computer 32can include a first manipulable power on element 38 and a second power on element 40 . Both power on elements may be buttons. While separate buttons are shown, it is to be understood that instead of physically separate buttons the two elements 38 , 40 may be implemented by a single common button, toggle, or other element that may be manipulated differently depending on whether the primary or secondary O.S. is to be booted.
- the first power on element 38when manipulated, energizes the computer 32 and indicates to the processor 34 that the primary operating system 26 is to be booted from disk to main memory 36 .
- the second power on element 40when manipulated, the computer 32 is energized and it is indicated to the processor 34 that the secondary operating system 28 is to be booted from the NVM 30 to the main memory 36 .
- FIG. 2the logic for determining which operating system is initiated by the user is shown.
- FIG. 2is illustrated in flow chart format, it being understood that in actual implementation other logic types may be used, e.g., state logic.
- the systemreceives a power-on signal and determines whether the signal is received from the secondary boot element 40 . If the logic determines that the secondary boot element 40 has been manipulated, at block 44 the HDD does not initiate its disks to spin. Moving to block 46 , the secondary operating system 28 is booted from the NVM 30 to the main memory 36 of the host computer. Operation of the secondary O.S. from main memory 36 is conducted without spinning up the disks until such time as a shutdown signal is received.
- the systemturns off at block 50 , with a copy of the secondary operating system 28 remaining stored within the flash memory of the NVM 30 of the HDD.
- the shutdown signalcan be generated by, e.g., pressing a power button or by a software call in the operating system's “shutdown” module.
- block 52indicates that the secondary operating system stored in the NVM 30 is flushed so that the NVM 30 may be used as, e.g., a cache for the duration of the session.
- the primary operating system 26is booted from disk(s) 24 to the main memory 36 of the host computer. Operation of the primary O.S. from the main memory 36 continues until a shutdown signal is determined as being received at decision diamond 56 , at which time the logic flows to block 58 .
- the NVM 30 in the HDDis flushed to make room for a new copy of the secondary operating system, which, it will be recalled, has been flushed at power-on and boot of the primary O.S.
- a copy of the secondary operating systemis copied from disk(s) 24 into the NVM 30 so that it may be ready for use during the next system start should the secondary power on element 40 be manipulated.
- the disks 24 within the HDDspin down, closing the current session for the primary operating system. Concluding again at block 50 , the system is turned off and the logic ends.
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- Stored Programmes (AREA)
Abstract
Description
- This application claims priority from U.S. provisional application Ser. No. 60/693,633, filed Jun. 24, 2005.
- The present invention relates generally to systems and methods for rapidly booting secondary operating systems of computers.
- When a computer is “booted”, an operating system is loaded into memory from a hard disk drive. This means that the HDD must first be spun up and made operational, and then data transferred from disk to memory, lengthening the time to boot the computer.
- In addition to the conventional functions of a personal computer (such as, e.g., word processing, spreadsheet generation, etc.) that are afforded by the primary operating system (such as, e.g., Windows7), some computers are configured to execute functions that may otherwise be performed by special purpose devices. For example, some notebook computers are configured to be used as simple DVD players, or as wireless telephones, or as email devices. In each case, the present invention recognizes that a simpler secondary operating system with correspondingly limited device drivers may be stored on the HDD to be booted in lieu of the computer's primary operating system. In this way, if all a user wishes to do is to use the computer for a relatively simple function and then shut the computer down, booting time can be reduced because only the relatively smaller secondary operating system associated with the desired function need be booted into memory.
- As recognized herein, however, booting under such circumstances still requires the HDD to be spun up. Although booting time is reduced, it still requires some period of time, and furthermore spinning up a HDD consumes energy, which is particularly undesirable for battery-powered computers. Nevertheless, because existing basic input-output systems (BIOS) of computers (the small programs that initiate operating system booting and that are not borne on the HDD but instead are stored in relatively small solid state memory) typically are configured to access a HDD to obtain the operating system, it remains desirable to boot from a HDD, since that is where BIOS expects the operating system to be. With these recognitions in mind, the invention herein is provided.
- A method is disclosed for reducing boot time of a secondary operating system of a computer that includes a processor accessing a hard disk drive (HDD). The HDD includes one or more disks storing the secondary operating system and a primary operating system. The HDD also includes a non-volatile solid state memory (NVM). The method includes receiving a power on signal that indicates whether the primary operating system or the secondary operating system is to be booted. If the primary operating system is to be booted, the disk(s) are spun up and the primary operating system is booted from disk into the main memory of the computer. If the secondary operating system is in the NVM, the NVM is flushed such that the NVM can be used as HDD cache. When a power down signal is received, the secondary operating system is copied from disk to NVM and then the computer is powered down. In contrast, if the secondary operating system is to be booted, it is booted directly from the NVM without spinning up the disk.
- In non-limiting implementations the NVM can be a flash memory. The computer can include a first manipulable power on element and a second power on element. A power on signal indicating that the primary operating system is to be booted is generated when the first power on element is manipulated. On the other hand, a power on signal indicating that the secondary operating system is to be booted is generated when the second power on element is manipulated.
- In another aspect, a computer system includes a processor, a computer memory accessible by the processor, and a hard disk drive (HDD) accessible by the processor and including at least one disk and a non-volatile solid state memory (NVM). A primary operating system is stored on the disk for booting thereof under control of the processor into the computer memory in a first condition. Also, a secondary operating system is on the disk and is also on the NVM for booting the secondary operating system from the NVM under control of the processor into the computer memory in a second condition.
- In still another aspect, a computer includes processing means for booting and disk means for storing a primary operating system and a secondary operating system. Non-volatile solid state memory (NVM) means are provided for storing the secondary operating system. The processing means boots the primary operating system from the disk if a first power on signal is received. If, however, a second power on signal is received, the processing means boots the secondary operating system from the NVM means without spinning up the disk.
- The details of the present invention, both as to its structure and operation, can best be understood in reference to the accompanying drawings, in which like reference numerals refer to like parts, and in which:
FIG. 1 is a schematic diagram of a non-limiting computer system; andFIG. 2 is a flow chart of the present logic.- Referring initially to
FIG. 1 , a non-limiting computer system is shown, generally designated10, which includes a hard disk drive (HDD)12 having ahousing 20, and thehousing 20 supports aHDD controller 22. Thecontroller 22 is electrically connected to at least onehard disk 24. The disk(s)24 store both aprimary operating system 26 and at least onesecond operating system 28. Additional secondary O.S. can be provided for booting from NVM in accordance with principles set forth further below. - The
controller 22 also accesses a non-volatile solid state memory (NVM)30 that can be, without limitation, a flash memory device. Ahost computer 32 accesses theHDD 12, and as set forth further below, when thehost computer 32 remains in the off mode, the NVM30 contains a copy of thesecondary operating system 28 that is stored on the HDD. This copy is kept in theNVM 30 for easy accessibility during a secondary operating system boot but is deleted from the NVM30 if theprimary operating system 26 is booted, because theprimary operating system 26 typically uses theNVM 30 for other purposes (e.g., as a cache) while the primary operating system is in use. - As shown, in a non-limiting embodiment the
host computer 32 includes acomputer processor 34 and a non-limitingmain memory 36. Theprocessor 34 accesses theHDD 12 using aninternal HDD controller 37. Thenon-limiting memory 36 may include any hardware associated with active computer memory, e.g. RAM memory, that is utilized by thehost computer 32 to execute user commands. Additionally, thehost computer 32 can include a first manipulable power onelement 38 and a second power onelement 40. Both power on elements may be buttons. While separate buttons are shown, it is to be understood that instead of physically separate buttons the twoelements - In any case, the first power on
element 38, when manipulated, energizes thecomputer 32 and indicates to theprocessor 34 that theprimary operating system 26 is to be booted from disk tomain memory 36. In contrast, when the second power onelement 40 is manipulated, thecomputer 32 is energized and it is indicated to theprocessor 34 that thesecondary operating system 28 is to be booted from theNVM 30 to themain memory 36. Now referring toFIG. 2 , the logic for determining which operating system is initiated by the user is shown. For ease of exposition,FIG. 2 is illustrated in flow chart format, it being understood that in actual implementation other logic types may be used, e.g., state logic. - Beginning at
decision diamond 42, the system receives a power-on signal and determines whether the signal is received from thesecondary boot element 40. If the logic determines that thesecondary boot element 40 has been manipulated, atblock 44 the HDD does not initiate its disks to spin. Moving toblock 46, thesecondary operating system 28 is booted from theNVM 30 to themain memory 36 of the host computer. Operation of the secondary O.S. frommain memory 36 is conducted without spinning up the disks until such time as a shutdown signal is received. - When it is determined that the a shutdown signal has been generated at
decision diamond 48, the system turns off atblock 50, with a copy of thesecondary operating system 28 remaining stored within the flash memory of theNVM 30 of the HDD. The shutdown signal can be generated by, e.g., pressing a power button or by a software call in the operating system's “shutdown” module. - Returning to
decision diamond 42, when the primary O.S. power-onelement 38 is manipulated the logic flows to block52 to spin up the disk(s)24. Simultaneously, block52 indicates that the secondary operating system stored in theNVM 30 is flushed so that theNVM 30 may be used as, e.g., a cache for the duration of the session. - Moving to block54, the
primary operating system 26 is booted from disk(s)24 to themain memory 36 of the host computer. Operation of the primary O.S. from themain memory 36 continues until a shutdown signal is determined as being received atdecision diamond 56, at which time the logic flows to block58. - As shown in
FIG. 2 , atblock 58 theNVM 30 in the HDD is flushed to make room for a new copy of the secondary operating system, which, it will be recalled, has been flushed at power-on and boot of the primary O.S. Atblock 60, a copy of the secondary operating system is copied from disk(s)24 into theNVM 30 so that it may be ready for use during the next system start should the secondary power onelement 40 be manipulated. Atblock 62 thedisks 24 within the HDD spin down, closing the current session for the primary operating system. Concluding again atblock 50, the system is turned off and the logic ends. - While the particular SYSTEM AND METHOD FOR RAPID BOOT OF SECONDARY OPERATING SYSTEM as herein shown and described in detail is fully capable of attaining the above-described objects of the invention, it is to be understood that it is the presently preferred embodiment of the present invention and is thus representative of the subject matter which is broadly contemplated by the present invention, that the scope of the present invention fully encompasses other embodiments which may become obvious to those skilled in the art, and that the scope of the present invention is accordingly to be limited by nothing other than the appended claims, in which reference to an clement in the singular means “at least one”. For instance, while a secondary O.S. is discussed as being copied into NVM upon shutdown, more than one secondary O.S. may be copied into NVM and more than one secondary O.S. boot signal may be provided so that a select one of plural secondary O.S. may be booted from NVM without spinning up the disks. Moreover, it is not necessary for a device or method to address each and every problem sought to be solved by the present invention, for it to be encompassed by the present claims. Furthermore, no element, component, or method step in the present disclosure is intended to be dedicated to the public regardless of whether the element, component, or method step is explicitly recited in the claims. No claim element herein is to be construed under the provisions of 35 U.S.C. 112, sixth paragraph, unless the element is expressly recited using the phrase “means for”.
Claims (15)
1-4. (canceled)
5. A computer system, comprising:
at least one processor;
at least one computer memory accessible by the processor;
at least one hard disk drive (HDD) accessible by the processor and including at least one disk and at least one non-volatile solid state memory (NVM);
at least one primary operating system stored on the disk for booting thereof under control of the processor into the computer memory in a first condition; and
at least one secondary operating system on the disk and on the NVM for booting the secondary operating system from the NVM under control of the processor into the computer memory in a second condition, wherein the disk is not spun up when the secondary operating system is booted from NVM.
6. (canceled)
7. The system ofclaim 5 , wherein the first condition is initiated by a first power on signal and the second condition is initiated by a second power on signal.
8. The system ofclaim 5 , wherein the NVM is flash memory.
9. The system ofclaim 5 , wherein the computer includes at least a first manipulable power on element and a second power on element, a power on signal indicating that the primary operating system is to be booted being generated when the first power on element is manipulated, a power on signal indicating that the secondary operating system is to be booted being generated when the second power on element is manipulated.
10. The system ofclaim 9 , wherein the power on elements are buttons.
11. (canceled)
12. The system ofclaim 5 , wherein the secondary operating system is copied into the NVM as part of power down from the first condition.
13. A computer, comprising:
processing means for booting;
disk means for storing a primary operating system and a secondary operating system; and
non-volatile solid state memory (NVM) means for storing the secondary operating system, the processing means booting the primary operating system from the disk if a first power on signal is received, the processing means booting the secondary operating system from the NVM means without spinning up the disk if a second power on signal is received.
14. The computer ofclaim 13 , wherein the processing means includes a processor, the disk means includes at least one disk in a hard disk drive (HDD) housing, and the NVM means includes at least one NVM in the HDD housing.
15-16. (canceled)
17. The computer ofclaim 14 , wherein the NVM is flash memory.
18. The computer ofclaim 14 , wherein the computer includes at least a first manipulable power on element and a second power on element, a power on signal indicating that the primary operating system is to be booted being generated when the first power on element is manipulated, a power on signal indicating that the secondary operating system is to be booted being generated when the second power on element is manipulated.
19. The computer ofclaim 18 , wherein the power on elements are buttons.
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| US11/357,279US7469336B2 (en) | 2005-06-24 | 2006-02-16 | System and method for rapid boot of secondary operating system |
| US12/197,501US8099589B2 (en) | 2005-06-24 | 2008-08-25 | System and method for rapid boot of secondary operating system |
| US13/216,777US20110307690A1 (en) | 2005-06-24 | 2011-08-24 | System and method for rapid boot of secondary operating system |
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| US13/216,777AbandonedUS20110307690A1 (en) | 2005-06-24 | 2011-08-24 | System and method for rapid boot of secondary operating system |
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| US12/197,501Expired - Fee RelatedUS8099589B2 (en) | 2005-06-24 | 2008-08-25 | System and method for rapid boot of secondary operating system |
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Also Published As
| Publication number | Publication date |
|---|---|
| US7469336B2 (en) | 2008-12-23 |
| EP2426602A1 (en) | 2012-03-07 |
| JP5054682B2 (en) | 2012-10-24 |
| US20080313454A1 (en) | 2008-12-18 |
| US8099589B2 (en) | 2012-01-17 |
| EP1896936B1 (en) | 2014-08-27 |
| EP1896936A2 (en) | 2008-03-12 |
| CN101714097A (en) | 2010-05-26 |
| US20060294357A1 (en) | 2006-12-28 |
| WO2007002035A2 (en) | 2007-01-04 |
| JP2009501365A (en) | 2009-01-15 |
| WO2007002035A3 (en) | 2007-03-22 |
| EP1896936A4 (en) | 2009-11-04 |
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| STCB | Information on status: application discontinuation | Free format text:ABANDONED -- AFTER EXAMINER'S ANSWER OR BOARD OF APPEALS DECISION |