KR100515651B1 - Renewal Process of Bootloader for Personal Digital Assistants - Google Patents

Renewal Process of Bootloader for Personal Digital Assistants Download PDF

Info

Publication number
KR100515651B1
KR100515651B1 KR10-2003-0076915A KR20030076915A KR100515651B1 KR 100515651 B1 KR100515651 B1 KR 100515651B1 KR 20030076915 A KR20030076915 A KR 20030076915A KR 100515651 B1 KR100515651 B1 KR 100515651B1
Authority
KR
South Korea
Prior art keywords
boot loader
ram
personal portable
portable terminal
rom
Prior art date
Application number
KR10-2003-0076915A
Other languages
Korean (ko)
Other versions
KR20050041667A (en
Inventor
황병호
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR10-2003-0076915A priority Critical patent/KR100515651B1/en
Publication of KR20050041667A publication Critical patent/KR20050041667A/en
Application granted granted Critical
Publication of KR100515651B1 publication Critical patent/KR100515651B1/en

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00Arrangements for program control, e.g. control units
    • G06F9/06Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44Arrangements for executing specific programs
    • G06F9/4401Bootstrapping
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00Arrangements for software engineering
    • G06F8/60Software deployment
    • G06F8/65Updates

Abstract

The present invention relates to a method of updating a boot loader of a personal portable terminal, comprising the steps of: a) a boot loader update application and a boot loader image are transmitted to the personal portable terminal, and copied to the RAM of the personal portable terminal, and b) the Comparing the boot loader image stored in the RAM with the boot loader currently stored in the ROM in the personal portable terminal; c) copying the boot loader image to a predetermined area of the RAM; d) controlling the system. Moving to a boot loader in the ROM, and e) executing the RAM after the boot loader is copied to the RAM area, and f) updating the boot loader in the ROM area with the boot loader image stored in the step c). do.

Description

How to renew the bootloader for your personal mobile device {Renewal Process of Bootloader for Personal Digital Assistants}

The present invention relates to a method for updating a bootloader of a personal portable terminal, and more specifically, to provide an easy and safe bootloader upgrade function to ensure the convenience and stability of a personal portable terminal user, and to authenticate an image. The only way to upgrade is to provide a way to ensure the stability of personal handheld devices.

Personal portable terminals, which have been mainly used for business purposes in conventional companies, are now widely used by general users. In addition to personal schedule management, various functions such as e-books, digital music players, and game consoles are utilized.

However, there are more problems to be solved in the use of personal portable terminals. Unlike general computers, personal digital assistants come preloaded with an operating system and basic applications. In the past, mask ROMs were used, and once they were written, they could not be modified, but now flash ROMs are used to allow future upgrades.

1 is a structure of a ROM and a RAM of a general personal portable terminal.

In the above embodiment, the ROM stores the boot loader 101, the operating system and the application 102, and the system specific information 103 in a predetermined area, and the RAM includes the boot loader RAM area 104, the system and the storage RAM area ( 105, a conserved RAM region 106 is included.

Referring to FIG. 1, when the personal portable terminal is powered on, the boot loader 101 is executed. The boot loader 101 is responsible for initializing personal portable device hardware and transferring control to the operating system and the application 102. The operating system and the application 102 boot and execute in a general order when control is passed.

Information unique to the hardware or personal digital assistant is recorded separately on the ROM. RAM serves as a general RAM in which a personal mobile terminal program is executed and as a file storage performed by a hard disk in a computer. The RAM area includes the boot loader RAM area 101 used by the boot loader, the system and storage RAM area 102 for storing the system and predetermined files, and the reserved RAM area 103 reserved for other purposes. Divided into

In order to fix bugs or improve performance of personal portable terminal software, there is a need for a method of easily upgrading and backing up the ROM and boot loader 101 of a personal portable terminal already on the market or being used by consumers. In particular, since the boot loader 101 performs an important role such as operating system execution and ROM update, a method for safely and easily updating the user is required.

An object of the present invention is to provide a method for safely updating the boot loader of a personal portable terminal to solve the above problems.

Another object of the present invention is to provide a method for allowing a boot loader image to be upgraded only in a specific product or a specific version.

In order to achieve the above object, a method of updating a personal portable device boot loader of the present invention may include: a) a boot loader updating application and a boot loader image are transmitted to the personal portable device, and copied to the RAM of the personal portable device, b) comparing the boot loader image stored in the RAM with the boot loader currently stored in the ROM in the personal portable terminal; c) copying the boot loader image to a predetermined area of the RAM; d) system. Moving control of the ROM to a boot loader in the ROM, e) executing the RAM after the boot loader is copied to the RAM area, and f) updating the boot loader in the ROM area with the boot loader image stored in the step c) Steps.

In the present invention, step b) preferably further includes the step of ending the step if the version of the boot loader image stored in the RAM is the same as or lower than the version of the boot loader currently stored in the ROM in the personal portable terminal. Do.

In the present invention, step b) preferably further includes the step of ending the step if the personal portable terminal does not support the boot loader image stored in the RAM.

In the present invention, the method for transferring the control of the system of step d) to the boot loader in the ROM is preferably initialized by resetting the personal portable terminal.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

2 is a flowchart illustrating a method of updating a personal portable terminal boot loader according to an embodiment of the present invention, and FIGS. 3A to 3F are conceptual views for explaining each step of FIG. 2.

The above embodiment schematically shows a process in which the boot loader 101 is updated to a new version.

A method of updating the boot loader 101 of the personal portable terminal will be described with reference to FIGS. 2 and 3 as follows.

Step 201 is a process in which the boot loader update application 301 and the boot loader image 302 are copied to RAM.

Referring to FIG. 3A, a boot loader update application 301 and a boot loader image 302 are transmitted from a host computer (not shown) to a personal portable terminal, and the transmitted boot loader update application 301 and a boot loader image. 302 is copied to a predetermined area in the RAM in the personal mobile terminal. The boot loader update application 301 and the boot loader image 302 are preferably stored in the system and storage RAM area 105.

The personal mobile terminal can be used in various ways, it is preferable to use a PDA in the present invention.

Steps 202 to 205 compare the boot loader image 302 with the current boot loader 101.

In operation 201, the boot loader image 302 stored in the RAM system and the storage RAM area 105 of the RAM is compared with the boot loader 101 currently stored in the personal portable terminal.

Referring to FIG. 3B, the boot loader updating application 301 determines whether or not it is possible to proceed by comparing the version of the boot loader image 302 with the version information of the current personal portable terminal and then moves to a predetermined area in the RAM. Copy boot loader image 302. The bootloader image 302 is preferably copied to the preserved RAM region 106 of RAM.

By this step, it is possible to allow the boot loader image 302 to be upgraded only in a specific product, a specific version.

Step 206 is a process of switching the system control to the boot loader 101.

Referring to FIG. 3C, in step 205, the bootloader image 302 is copied to the preserved RAM area 106, and the personal portable terminal is reset, which transfers system control to the current personal portable terminal.

The reset process is preferably performed by rebooting the personal portable terminal.

Step 207 is a process of copying the boot loader 101 to the boot loader RAM region 104 and executing the same.

Referring to FIG. 3D, the boot loader 101 executes itself in RAM after copying itself to the boot loader RAM region 104.

Step 208 is a process of updating the boot loader 101 with the boot loader image 302.

Referring to FIG. 3E, the boot loader 104 running in the RAM area updates the boot loader 101 of the ROM with the boot loader image 302. After the update of the boot loader 101 is finished and reset is performed, the updated boot loader 101 is operated as shown in FIG. 3F.

As described above, it has been described with reference to the preferred embodiment of the present invention, but those skilled in the art various modifications and changes of the present invention without departing from the spirit and scope of the present invention described in the claims below I can understand that you can.

As described above, according to the present invention, it provides an easy and safe boot loader upgrade function has the effect of ensuring ease of use and stability for users of personal portable devices.

In addition, it is possible to upgrade only the authenticated image has the effect of ensuring the safety of the personal portable terminal.

1 is a structure of a ROM and a RAM of a general personal portable terminal

2 is a flowchart illustrating a process of updating a boot loader according to an embodiment of the present invention.

3A to 3F are structures of a ROM and a RAM for explaining each step of FIG.

{Description of Major Symbols in Drawings}

101: boot loader 102: operating system and applications

103: system specific information 104: boot loader RAM area

105: system and storage RAM area 106: reserved RAM area

301: boot loader update application

302: bootloader image

Claims (5)

  1. In the method of updating the boot loader of the personal mobile terminal,
    a) a boot loader update application and a boot loader image are transmitted to a personal portable terminal and copied to the RAM of the personal portable terminal;
    b) The boot loader update application compares the version of the boot loader image and the related information with the version information of the current personal portable terminal to determine whether to continue, and then re-boots the boot loader image into a predetermined area of the RAM. Copying;
    c) transferring control of the system to a boot loader in the ROM;
    d) running in RAM after the boot loader is copied to the RAM area; and
    e) updating the boot loader of the ROM region with the boot loader image stored in the step c).
  2. The method of claim 1, wherein step b) further comprises the step of ending the step if the version of the boot loader image stored in the RAM is the same as the version of the boot loader currently stored in the ROM in the personal portable terminal. A boot loader update method for a personal portable terminal characterized in that.
  3. The method of claim 1, wherein the step b) further comprises the step of ending the step if the version of the boot loader image stored in the RAM is lower than the version of the boot loader currently stored in the ROM in the personal portable terminal. A boot loader update method for a personal portable terminal characterized in that.
  4. The method of claim 1, wherein the step b) further comprises the step of ending the step if the current personal portable terminal does not support the boot loader image stored in the RAM.
  5. The method of claim 1, wherein the method of transferring the control of the system to the boot loader in the ROM in step d) is performed by resetting and initializing the personal portable terminal.
KR10-2003-0076915A 2003-10-31 2003-10-31 Renewal Process of Bootloader for Personal Digital Assistants KR100515651B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR10-2003-0076915A KR100515651B1 (en) 2003-10-31 2003-10-31 Renewal Process of Bootloader for Personal Digital Assistants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2003-0076915A KR100515651B1 (en) 2003-10-31 2003-10-31 Renewal Process of Bootloader for Personal Digital Assistants

Publications (2)

Publication Number Publication Date
KR20050041667A KR20050041667A (en) 2005-05-04
KR100515651B1 true KR100515651B1 (en) 2005-09-20

Family

ID=37243105

Family Applications (1)

Application Number Title Priority Date Filing Date
KR10-2003-0076915A KR100515651B1 (en) 2003-10-31 2003-10-31 Renewal Process of Bootloader for Personal Digital Assistants

Country Status (1)

Country Link
KR (1) KR100515651B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100778293B1 (en) * 2005-10-10 2007-11-22 삼성전자주식회사 Digital tv and upgrade method of bootloader for the same
KR100849212B1 (en) 2006-10-12 2008-07-31 삼성전자주식회사 Memory card and method for updating of memory card program
CN107608702A (en) * 2017-10-25 2018-01-19 迈普通信技术股份有限公司 Bootloader program modules update method and device

Also Published As

Publication number Publication date
KR20050041667A (en) 2005-05-04

Similar Documents

Publication Publication Date Title
US8825994B2 (en) Atomic switching of images in desktop streaming over wide area networks
CN102999369B (en) The method and device of virtual machine upgrading
DE112004001605B4 (en) Computer system in which a secure execution environment is applied and in which a memory controller is formed, which is designed to erase the memory
AU722146B2 (en) A device driver for accessing computer files
US7107441B2 (en) Pre-boot interpreted namespace parsing for flexible heterogeneous configuration and code consolidation
US7062764B2 (en) System and method for manipulating offline software
US7549042B2 (en) Applying custom software image updates to non-volatile storage in a failsafe manner
US5355490A (en) System and method for saving the state for advanced microprocessor operating modes
EP1984824B1 (en) Computer operating system with selective restriction of memory write operations
US7657886B1 (en) Mobile device with a MMU for faster firmware updates in a wireless network
CN101517536B (en) With the function level instant translation engine of Multiple Optimization
JP3330569B2 (en) Computer control method, computer, and recording medium
KR101963912B1 (en) Application compatibility with library operating systems
US7730295B1 (en) Updating firmware of a peripheral device
US20140115316A1 (en) Boot loading of secure operating system from external device
TWI314703B (en) Using system bios to update embedded controller firmware
US8527728B2 (en) Management of multiple software images with relocation of boot blocks
US6859925B2 (en) Method for software installation and pre-setup
US8370835B2 (en) Method for dynamically generating a configuration for a virtual machine with a virtual hard disk in an external storage device
TWI459294B (en) Bios update method and computer system for using the same
US8069343B2 (en) Computer with bootable restoration
US8209290B1 (en) Generic granular restore of application data from a volume image backup
JP5655677B2 (en) Hypervisor replacement method and information processing apparatus
US7873960B2 (en) Generic packaging tool for packaging application and component therefor to be installed on computing device
CA2640390C (en) Method and system for installing portable executable applications

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee