KR20050032902A - Data backup and recovery method - Google Patents

Abstract

A data backup and recovery method is provided to store an OS as an image file in a restoration hidden partition, and select the stored image file of the OS for the restoration when a user requests using a hot-key. If a hot key is inputted(700), a system management interrupt is generated for a system management service. If the hot key is not for a restoration hidden partition, the corresponding hot key is processed. If the hot key is for a restoration hidden partition, the existence of the restoration hidden partition is checked(703). If the restoration hidden partition is set, the user inputs a mode of the restoration hidden partition and the corresponding mode is performed(706,707). The system is shut-down and rebooted(708).

Description

Data backup and recovery method

The present invention relates to a method of backing up and restoring an operating system using a hot-key in a computer system including a hard disk and a basic input / output system (BIOS). Provides a way to save and recover the operating system or personal data currently being used at the time of the user's request in the hidden hidden partition area of the system.

Conventionally, if the system stops working while using the computer, it may be forced to shut down or catch a virus, or the computer may not be used at all without any reason. From time to time, you may have to spend hours or days trying to reinstall the device driver and necessary programs.

To eliminate this risk and inconvenience, a few years ago computer manufacturers bundled bundled operating system recovery CDs, known as master CDs, when they sold their computers, which stored the contents of the hard disk at the time of purchase. The information contained in this generally includes the operating system and office programs. The recovery CD is provided by installing the operating system and other necessary programs in the computer and saving them as they are on the CD. In order to recover the master CD to the hard disk, a specific program is required. It includes a recovery CD in the CD-ROM drive and simply boots up, automatically formatting the hard disk and restoring it to the state it was in when it was first purchased.

Also, if you don't purchase it from the manufacturer, you don't have such a recovery CD. If this happens, you can use a hard disk backup and recovery program such as Ghost (available from Symantec) to directly use your hard disk. Store it on or save it to a CD.

        After purchasing a computer, the general user can add new programs or delete unnecessary programs installed in the basic environment provided by the manufacturer.If a problem occurs in the system and the OS is reinstalled using the recovery CD, the user may additionally The installed program is also very inconvenient to reinstall, it is very likely to lose important information. In addition, if you have lost the recovery CD, you will need to obtain the recovery CD from the manufacturer, or purchase and reinstall the OS, and you will have to obtain and install the device driver. Therefore, it is inconvenient to reconfigure the environment settings that have been set up so far, for example, the e-mail setting environment, the bank's electronic certificate, the bookmark of the web browser, the applications that the company uses exclusively, and all the programs that were installed personally. This will be. And basically, there's always a risk that you won't be able to recover your previous OS environment or personal data.

In addition, saving the current operating system to the hard disk or saving it to CD through the CD-ROM writer makes it difficult for the general user to use the program to recover the current operating system. In addition, a recovery program and a CD-ROM writer are also required, and there is a difficulty in purchasing it at a cost. The risks can not be overlooked, because storing the recovery image on the hard disk can cause a virus failure and accidental erasure.

      The present invention has been made to solve the above problems, the object of which is the operating system currently in use in the hidden (Hidden) partition area of the special partition of the hard disk when a user's request through the hot-key (HOT-KEY) In the form of an image file, and when requested by a user via a hot-key, the user can select an image of the operating system stored in the hidden partition area for recovery and restore the image to the hard disk. That is, the present invention can save and recover the OS image or personal data without a special program and CDROM writer for storing and restoring the OS image or personal data, and at any time save and restore with one key without complicated steps. You can do it easily.

     In addition, it can be saved and restored regardless of the type of OS, and can be quickly restored to a recently saved state without the inconvenience of reinstalling the OS or driver application.

The present invention relates to the backup and recovery of the operating system by the system hot key (HOT-KEY), the storage of the operating system through the hot-key service provided by the system BIOS (System BIOS) It is to perform the mode and the recovery mode.

The recovery hidden partition (R-HP) hotkey setting step of setting a hotkey for backing up and restoring the recovery hidden partition (R-HP) space is performed as follows.

Hot-keys are programmed in the BIOS to be called by the SMI / SCI, a System Management Interrupt, to operate at any time and at any time.

In addition, the storage mode may be performed according to the failure prediction of the hard disk by the smart function of the hard drive disk, and may also be included in the setup of the system BIOS. All of this is done in the system BIOS, so you can do it without any special programs. In addition, the recovery hidden hotkey (HOT-KEY) may designate a specific key according to the manufacturer, and can be arbitrarily set by the user during BIOS setup.

        The hard disk must be equipped with a special recovery hidden partition (R-HP) area, and the recovery hidden partition (R-HP) is an OS image defined in the present invention. Special hidden partitions for storage, hidden areas that are invisible to the average user or OS, and inaccessible. Of course, if you use a tool like FDISK, you can see that it is set.

       The hard disk master boot record (MBR-Master Boot Record) is information stored in the first sector of a hard disk or diskette that identifies where and how the operating system is located so that it can be loaded into the main memory of the computer.

The Master Boot Record is also called the "partition sector" or "master partition table" because it contains information about the location of each partition that is divided when the hard disk is formatted.

In addition, the Master Boot Record contains a program that can read the boot sector record of the partition where the operating system to be loaded into memory is stored. The boot sector record contains the rest of the operating system in memory. Contains the program to load.

Table 1 shows the structure of the Master Boot Record of the hard disk.

As shown in Table 1, the master boot record of the hard disk consists of a boot loader and a partition table. Since four partition tables are defined, four partitions can be set. The boot loader is code generated by a tool such as Fdisk that contains code for reading the boot recorder from the first sector of the specified partition.

address Contents size + 000H Boot Loader (Partition Code) CODE +1 BEH First entry in partition table 16BYTE +1 CEH Second entry in the partition table 16BYTE + 1DEH Third entry in partition table 16BYTE + 1EEH Fourth entry in the partition table 16BYTE + 1FEH ID CODE (AA55H) 2BYTE

Table 2 shows the structure of the partition table.

As shown in Table 2, the Partition Table shows the Partition Status (PS), which indicates whether a partition is active for booting, and the Partition Type, which indicates the type of each partition. (PT)) and consists of information about the physical start and end positions of each partition. In general, since the OS knows which partition type it can support, it cannot support other partition types, so it cannot be read and the partition is not recognized. Of course, you can use a tool like FDISK to see the partition type for each partition. Therefore, if a partition type that is not recognized by the current OS is set, the OS does not recognize the partition at all, and thus a special hidden partition that is not accessed by the OS can be configured. In this case, A4H, which is not currently used by any OS, is used as a partition type for the hidden hidden partition (R-HP). Therefore, a partition having a partition type may be referred to as a recovery hidden partition (R-HP).

A number of hidden partitions can be defined in addition to this type. The status of the recovery hidden partition (R-HP) used in the present invention is to compare and display whether this value is A4H. In addition, the set size and position are displayed using information on the number of sectors of the partition and head / sector / cylinder information corresponding to the start and end of the partition.

address Contents size + 001H Partition Status (PS) OOH = inactive80h = Boot Partition 1BYTE + 01H Read / Write Head with which the partition begins 1BYTE + 02H Sector and Cylinder, with which the partition begines 1WORD + 04H Partition Type (PT) OOh = Entry not allowed, 01h = DOS with FAT1202h / 03h = XENIX, 04h = DOS with FAT1605h = Extended DOS Partition (DOS 3.3) 06h = DOS-4.0 (> 32MB) DBh = Concurrent DOS 1BYTE + 05H Read / write Head, with which the partition ends 1BYTE + 06H Sector and Cylinder, with which the partition ends 1WORD + 08H Removal of first sector of the partition (Boot sector) of partition sector in sectors 1DWORD + 0CH Number of sector in this partition 1DWORD

The partition of a typical hard disk (HDD) is shown in FIG.

Alternatively, you can use the single partition structure to store the OS and personal data together.You can also split two or more partitions and install the operating system on the first partition (C: Drive) and the rest of the partition (D: or Beyond that, there are ways to store personal data and manage them separately.

The position of the recovery hidden partition R-HP is located at the last position of the hard disk HDD as shown in FIG. 6A.

The reason for this is that data is usually written from the beginning of the hard disk (HDD), so in order for the partition to be allocated dynamically without the recovery hidden partition (R-HP) set up, Should be set.

For systems with multiple hard disks, the recovery hidden partition (R-HP) can be located anywhere.

Table 3 shows an example of a recovery hidden partition configuration menu.

As shown in Table 3, the recovery hidden partition (R-HP) defined in the present invention is configured to recover hidden hidden partition status and recover hidden partition in the BIOS setup menu of a computer system without a special program. It can be set up with the menu (Recovery Hidden Partition Control Menu). The Recovery Hidden Partition Status item displays the setting status of the recovery hidden partition (R-HP) and the number of OS images stored. And the description of each image.

Then, through the Recovery Hidden Partition Control Menu (Recovery Hidden Partition Control Menu), the main menu that determines whether or not to set up the recovery hidden partition (R-HP), the setting of the recovery hotkey, the SMART (Self Monitoring and Reporting of the hard disk) Technology) can be divided into sub-menus to set the size of hidden partition and whether to enter recovery mode automatically during BIOS POST.

BIOS Setup Menu Option Recovery Hidden Partition Status Present / Not Present Number of OS Image () Images List of OS Image Recovery Hidden Partition Control Enable / Disable Hot Key Select SMART cause Recovery process Yes / No Recovery Hidden Partition Size                    MB

In the present invention, in a computer system using at least one hard disk,

A recovery hidden partition (R-HP) hotkey setting step of setting a hotkey for backing up and restoring the recovery hidden partition (R-HP) space;

A recovery hidden partition (R-HP) setting step of setting a space for storing data for recovery; will be presented a data storage and recovery method comprising a.

Referring to Figure 1 will be described in detail the data storage and recovery method proposed by the present invention.

In the present invention, the data stored in the recovery hidden partition is composed of a header file and an image file including an image description, date information, and file size, and the image file is an operating system or user data. The present method is described in detail below.

1 is a flowchart illustrating a process of setting a recovery hidden partition (R-HP). If you enter the Recovery Hidden Partition setup menu in BIOS Setup (100), all currently installed hard disks (HDDs) will be checked and the existence of the Recovery Hidden Partition (R-HP) will be displayed. In addition, it shows how many recovery OS images exist and the description contents / date information / file size stored in the header file of each image and the location information on which hard disk (HDD) is shown as shown in FIG. 8 (101). ).

The recovery hidden partition (R-HP) setting step is

Adding a recovery hidden partition (R-HP) to add the recovery hidden partition (R-HP);

Deleting a recovery hidden partition (R-HP) capable of deleting the recovery hidden partition (R-HP);

A recovery hidden partition (R-HP) changing step of changing the size of the recovery hidden partition (R-HP); data storage and recovery method comprising a, it will be described in detail with reference to the drawings. .

The recovery hidden partition (R-HP) addition step, where you can add a recovery hidden partition (R-HP), does not exist (102) and the recovery hidden partition (R-HP) does not exist. HP (103), first, the size of the recovery hidden partition (R-HP) is input from the user (104), and performs the recovery hidden partition (R-HP) addition mode (105).

If there is a hidden hidden partition (R-HP), and you only want to change the size of the previously set hidden hidden partition (R-HP) (107), enter the size of the hidden hidden partition (R-HP). 108) receive, perform the recovery hidden partition (R-HP) resize mode (109), and if you want to delete the recovery hidden partition (R-HP) (106), delete the recovery hidden partition (R-HP) Perform mode 110.

The additional mode 105 of the recovery hidden partition R-HP is shown in FIG.

First, the master boot record (MBR) is read for each hard disk (200), and if it is a normal partition sector as shown in Table 1, the ID code should be AA55H (201).

If not, an error message is displayed because there is a problem with the partition configuration or the partition is not configured.

Each entry in the partition table is checked sequentially until the end (202) .If the partition type (Partition Type-PT) is 00H (203), it means that no partition is set. 205) Also, if the PT is A4H (204), an error message is shown to the user since the recovery hidden partition (R-HP) has already been set.

   This checks four partition table entries for each hard disk (HDD) so that no partitions are in use (206) or none are not in use (207), i.e. four partitions. When both tables are in use, each will display an error message. Before setting up a recovery hidden partition (R-HP), it is first necessary to resize the currently valid partition (208).

As shown in Fig. 5, there may be N partitions in general (where N is 1 to 4), and as shown in Fig. 6-1, the location of the recovery hidden partition (R-HP) is set to the corresponding size from the rear of the hard disk. Since it is defined to be the size of the last partition, the size of the recovery hidden partition (R-HP) must be reset to the reduced size.

The reset capacity is then applied to the partition table. Consideration should be given: First, the size of the last valid partition must be larger than the size of the recovery hidden partition (R-HP). Second, if the data of the valid partition is in the recovery hidden partition (R-HP) area, You need to do some preliminary work to move the data into the readjusted area.

Then you will set up the recovery hidden partition (R-HP), where PT = A4H, enter it into the first available entry with a value of PS = 0 (209) and set the size in BIOS Setup. As such, the area of the hidden hidden partition (R-HP) is set. (210, 211)

      The recovery hidden partition (R-HP) erase mode 110 is illustrated in FIG. 3. Read the master boot record (MBR) data of the hard disk (300) to see if the partition is valid (301), then check the partition type from the first partition table entry to the last entry (302) to see if it is A4H (PT for R-HP). If (303) is detected, if none of the four partition tables are detected, an error message is displayed, and if detected, the size of the last valid partition that is the previous partition of the recovery hidden partition (R-HP) is restored. After the size of the hidden partition (R-HP) is adjusted (304), the OS image file in the recovery hidden partition (R-HP) is deleted (306).

Further, 16BYTE data of the partition table entry of the recovery hidden partition (R-HP) is cleared to 00 (307).

      The recovery hidden partition (R-HP) size change mode 109 is shown in FIG. Read the master boot record (MBR) data of the hard disk (400) to verify that the partition is valid (401), then check the partition type from the first partition table entry to the last entry (402) to determine whether it is A4H (Hidden Hidden Partition) ( 403). The changed size is calculated and the last valid partition is resized (405), and the size of the hidden recovery partition is also changed and stored in the partition table (406).

      There may be several examples of the partition of the hard disk (HDD) in which the recovery hidden partition (R-HP) is set. However, if only two examples are given, the first partition, that is, the OS on the C: drive, as in Embodiment 1 of FIG. Is installed, and the second partition is a hidden hidden partition area that is not accessible to the user or the OS and contains two OS images.

6c is a configuration in which a user sets a recovery hidden partition (R-HP) in a state in which a user divides the partition into two, wherein the first partition (drive C) is installed with an OS, and the second partition (drive D: ) Stores your data files, and the third partition is the hidden hidden partition (R-HP). In addition to the OS image, as in this example, the second partition where the user's data is stored can be stored and managed as a data image.

The present invention provides a recovery hidden partition (R-HP) presence determination step of determining whether a recovery hidden partition (R-HP) exists when a hotkey set in the recovery hidden partition (R-HP) hotkey setting step is pressed; and

A mode input step of determining whether to store data in the recovery hidden partition (R-HP) or recover data from the recovery hidden partition (R-HP); and

In the storage mode according to the mode input step, the data is stored in the recovery hidden partition (R-HP), and in the recovery mode according to the mode input step, the data is stored in the recovery hidden partition (R-HP). / Recovery execution step; and

A system shut-down step of shutting down the system in order to apply the changed contents is provided. Same as

      A method of completing the setup of the recovery hidden partition (R-HP) in the system BIOS setup and using the operating system and storing the operating system currently in use is illustrated in FIG. 7.

Restoring and saving the operating system is performed by hotkeys set in BIOS Setup. When the hotkey is input (700), an SMI / SCI Interrupt, which is a System Management Interrupt, is generated to perform a System Management Service. At this time, the type of the hotkey is checked (701) for recovery. If it is not a hidden partition hotkey, the hotkey is processed (702), and if it is a hotkey for recovery hidden partition (R-HP), it is first checked whether a recovery hidden partition (R-HP) exists. .

This is confirmed by comparing A4H with the partition PT of each partition table entry in the master boot record MBR of the hard disk HDD.

If the recovery hidden partition (R-HP) has not been configured, an error message is displayed and the original state is returned before the hotkey was called.

If the recovery hidden partition (R-HP) is set, the user is asked whether the recovery mode or the save mode (705) is received, and inputs are performed to perform each mode (706, 707), and then the system shuts down message to the OS. To shut down.

Since the size of the currently valid partition and the hidden hidden partition (R-HP) has been changed, the system must be shut down and restarted in order to use the changed contents (708).

The data storage / recovery execution step in the storage mode may include: a recovery hidden partition status display step of displaying the number of images stored in the recovery hidden partition (R-HP) and image description information; and

An image description input step of inputting an image description; and

An image file name input step of inputting an image file name; and

A header file generation step of generating a header file including an image description, date information, and file size; and

An image file generation step of generating an image file with a file name specified in the image file name input step; and

A data location selection step of selecting a location of data to be stored in the recovery hidden partition; and

A data storing and restoring method will be described in detail below, when the data location selection step is completed, the data storing step of storing data in a hidden hidden partition (R-HP).

In the storage mode, as shown in FIG. 8, the state of the hidden hidden partition (R-HP) is first displayed (800). At this time, the number of OS images stored in the hidden hidden partition (R-HP) and the image description information are also displayed. In addition, the description contents of the OS image to be saved are received from the user (801) and later stored in the header file.

Whether to save to a new image or to overwrite the existing stored OS or data image is received and processed (802).

If a new image is to be stored, the image file name is input (805), a header file composed of the image description, the stored date, and the image file size is created (806), and the image file is created with the name entered by the user (807).

In operation 809, a user input 808 is input to select a location of an OS or data to be stored, and the contents of the partition are stored in a file.

When updating, the image to be updated is selected (803), and the header file is updated (804).

There are many ways to save, but to save regardless of OS, Sector By Sector or Track By Track can directly save or compress the data of hard disk (HDD).

The data storage / recovery execution step in the recovery mode may include a recovery image checking step of checking whether or not an image to be recovered exists in the recovery hidden partition (R-HP); and

If there is an image to be recovered, displaying the image to be recovered and selecting a recovery image selected by the user; and

An image description display step of displaying a description of the selected image; and

Recovery confirmation step of receiving confirmation from the user; and

A recovery location input step of receiving a location to recover a selected image; and

An image storage step of copying a recovery image to a position input in the recovery position input step will be described below.

 As shown in FIG. 10, the recovery method displays the state of the recovery hidden partition (R-HP) as shown in FIG. 10 and checks whether the image to be recovered exists in the recovery hidden partition (R-HP) (901). Determine.

If there is a recovery image, the user selects an image to be restored from the user, receives input, and displays the selected image description (903).

If there is no image to recover, it displays an error message and returns to the state before the hotkey was called.

The recovery process is quite important because it erases the current operating system and restores it to a previously saved image.

Accordingly, the user receives an input from the user as to whether to recover (904).

If the recovery has been selected to receive the location to be installed (906) to extract the image to the selected location to recover (907).

The recovery method is a sector by sector or track by track to recover or decompress data.

     As described above, according to the present invention, the OS image or personal data can be stored and recovered without a special program and CDROM writer for storing and restoring the OS image or personal data, and stored and stored with one key without complicated steps. Recovery is easy at any time and any time.

     In addition, it is possible to save and recover regardless of the OS type, and to eliminate the inconvenience of re-installing the OS or driver application, and to quickly recover to the latest saved state. The present invention can solve this hassle.

    1 is a flowchart of a process of setting a recovery partition (R-HP Recovery Hidden Partition) in BIOS Setup.

      2 is a flowchart of an R-HP Recovery Hidden Partition addition mode.

      3 is a flowchart of an R-HP Recovery Hidden Partition deletion mode.

      4 is a flowchart of a R-HP Recovery Hidden Partition size change mode.

      5 is a diagram illustrating a partition of a general hard disk drive.

      6A is an exemplary partition diagram of a hard disk drive in which a recovery hidden partition (R-HP Recovery Hidden Partition) is set.

FIG. 6B is a partition example 1 of a hard disk drive in which a recovery hidden partition (R-HP Recovery Hidden Partition) is set. FIG.

6C is a second embodiment of a partition of a hard disk drive in which a recovery hidden partition (R-HP Recovery Hidden Partition) is set.

      7 is a flowchart of a recovery and storage mode by a hot-key.

      8 is a flowchart of a storage mode.

      9 is an image file structure.

      10 is a flowchart of a recovery mode.

Explanation of symbols on the main parts of the drawings

      100: Enter the setting menu

101: Display description of stored contents / date information / file size and location information to know which hard disk (HDD) is located.

200: Read Master Boot Record (MBR).

300: Read Master Boot Record (MBR) data of hard disk.

401: Check if the partition is valid.

700: hotkey input

800: Display the status of the hidden partition for recovery

901: Check whether the recovery hidden partition (R-HP)

Claims (6)

In a computer system using at least one hard disk, A recovery hidden partition hotkey setting step of setting a hotkey for backing up and restoring data to the recovery hidden partition space; Recovery hidden data partition setting step of setting the space for storing the data for recovery; data storage and recovery method comprising a. The method of claim 1, The recovery hidden partition setting step A recovery hidden partition adding step of adding the recovery hidden partition; A recovery hidden partition deletion step of deleting the recovery hidden partition; And a recovery hidden partition changing step of changing the size of the recovery hidden partition. The method of claim 1, If the hotkey set in the recovery hidden partition hotkey setting step is pressed A recovery hidden partition presence determination step of determining whether a recovery hidden partition exists; and A mode input step of deciding whether to store data in a hidden hidden partition or recover data from a hidden hidden partition; and A data storage / recovery execution step of storing data in a hidden partition for recovery in the storage mode according to the mode input step; and recovering data from a hidden partition for recovery in the recovery mode according to the mode input step; and And a system shutdown step of shutting down the system to apply the changed contents. The method of claim 3, wherein The data storage / recovery execution step in the storage mode is A recovery hidden partition status display step of displaying the number of images stored in the recovery hidden partition and image description information; and An image description input step of inputting an image description; and An image file name input step of inputting an image file name; and A header file generation step of generating a header file including an image description, date information, and file size; and An image file generation step of generating an image file with a file name specified in the image file name input step; and A data location selection step of selecting a location of data to be stored in the recovery hidden partition; and And a data storage step of storing data in a hidden partition for recovery when the data location selection step is completed. The method of claim 3, wherein The data storage / recovery execution step in the recovery mode is A recovery image checking step of checking whether an image to be recovered exists on a hidden partition for recovery; and If there is an image to be recovered, displaying the image to be recovered and selecting a recovery image selected by the user; and An image description display step of displaying a description of the selected image; and Recovery confirmation step of receiving confirmation from the user; A recovery location input step of receiving a location to recover a selected image; and And an image copying step of copying a recovery image to a position input in the recovery position input step. The method according to any one of claims 1 to 5, Data stored in the hidden hidden partition is composed of a header file and an image file including an image description, date information, file size, And the image file is an operating system or user data.