CN1512349A - Method for establishing guidable partition - Google Patents
Method for establishing guidable partition Download PDFInfo
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- CN1512349A CN1512349A CNA021594910A CN02159491A CN1512349A CN 1512349 A CN1512349 A CN 1512349A CN A021594910 A CNA021594910 A CN A021594910A CN 02159491 A CN02159491 A CN 02159491A CN 1512349 A CN1512349 A CN 1512349A
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Abstract
The process of establishing booting sector includes at least the following steps: obtaining booting record and booting sector and saving as file; sectoring and formatting the designated hard disc; reading out the main booting record and booting sector of the designated hard disc; correcting the stored booting record and booting sector based on the content of the main booting record and booting sector in the designated hard disc; writing the corrected main booting record and booting sector into designated hard disc; and copying the system file to the sector. The present invention realizes the direct establishment of FAT and FAT32 sector in booting DOS system under Linux, simplifies the manual operation of user while solving the problem of establishing booting sector.
Description
Technical field
The present invention relates in a kind of operating system to create the bootable partitioned method of another kind of operating system, relate in particular to a kind of subregion of under Linux, creating the bootable DOS system of FAT or FAT32 form, belong to field of computer technology.
Background technology
Operating system is the platform of various computer application software operations.In general, as long as operating system can be supported the hardware device of a computing machine, on same computing machine, can move several operation systems.But when installing operating system, various operating systems all need be set up file system correspondingly on the memory device of computing machine, and deposit data necessary, could guide this operating system from memory device like this.The required necessary data of these booting operating systems need be generated in installation process by the installation procedure of this operating system, is perhaps write by other operating system of supporting this file system.
Using in the most general IBMPC compatible computer at present, the operating system of main flow has DOS, Windows series and Linux series.The file system of DOS system support is FAT and FAT32.Windows 95 and Windows NT support FAT, and Windows 95 osr2, Windows 98, Windows2000 and Windows XP support FAT32, and Windows NT, Windows 2000 and Windows XP support NTFS.The file system that Linux supports is more, except that supporting the distinctive ext2 file system of Linux fully, can also read and write and create FAT, FAT32 file system, reads new technology file system.
But FAT that Linux creates down and FAT32 file system can only be used for depositing file, can not be used for guiding DOS or Windows system.And in some applications, exactly need in the Linux environment, need to create a guidable FAT or FAT32 subregion, be used for starting DOS, the software under the operation DOS.If DOS or Windows system are not installed on the hard disk of this computing machine, then can only under the DOS environment, create bootable subregion with other medium such as floppy disk or optical disk start-up DOS environment by system command.This method is not only loaded down with trivial details, but also needs other media resource, can't meet the demands in the demanding application of automatic degree to system.
Summary of the invention
Fundamental purpose of the present invention is to provide the bootable partitioned method of a kind of establishment at the deficiencies in the prior art, can directly create the subregion of the bootable DOS system of FAT or FAT 32 forms under Linux, is used for starting DOS, the software under the operation DOS.
The object of the present invention is achieved like this, comprises the steps: at least
Step 1. is obtained Main Boot Record and boot sector, saves as file;
Step 2. pair appointment hard disk carries out subregion and format;
Step 3. reads the Main Boot Record and the boot sector of specifying hard disk;
Step 4. is revised Main Boot Record and the boot sector preserved in the step 1 according to the Main Boot Record of specifying hard disk and the content of boot sector;
Step 5. writes the appointment hard disk with revised Main Boot Record and boot sector;
Step 6. copies to system file on the subregion, finishes.
The Main Boot Record of described step 1 and boot sector read from the hard disk that formats with the DOS system partitioning, save as data file after reading, and are provided with the back step and use.
Described step 2 to specifying hard disk to carry out subregion and format, can be undertaken by the linux system order, subregion is necessary for first subregion of specifying hard disk.
The correction Main Boot Record and the boot sector of described step 4 comprise at least:
At first the judgment data form promptly judges whether the form into FAT32;
If then read the FAT32 boot sector respectively, and FAT32 boot sector file is revised to the content of the FAT32 boot sector file in the buffer zone with FAT32 boot sector in the buffer zone to buffer zone;
If not, then the content of FAT boot sector is revised, read the FAT boot sector respectively, and FAT boot sector file is revised to the content of the FAT boot sector file in the buffer zone with FAT boot sector in the buffer zone to buffer zone.
Described step 6 system file is copied on the subregion is to write DOS system file IO.SYS, MSDOS.SYS and COMMAND.COM on the new subregion of creating.
The present invention has realized the FAT and the FAT32 subregion of the bootable DOS of direct establishment system under Linux, has simplified user's manual operations on the one hand, has solved the problem that can't create bootable subregion of the systems face that need automatically perform this function on the other hand.
Description of drawings
Fig. 1 is the theory diagram of the method for the invention;
Fig. 2 be an embodiment of the method for the invention process flow diagram.
Embodiment
MSDOS7.0 operating system commonly used is as follows from the step of hard disk guiding:
The Basic Input or Output System (BIOS) of depositing in the ROM (read-only memory) of computing machine (ROM) (BIOS) is carried out initialization to system; BIOS reads and is positioned at hard disk 0 cylinder, 0 magnetic head, the Main Boot Record of 1 sector (MBR);
Carry out Main Boot Record, the boot in the Main Boot Record reads the boot sector that is positioned at the starting position of system partitioning;
Carry out the boot on the boot sector, boot is searched on subregion and reading system kernel IO.SYS;
Carry out kernel file IO.SYS, it will read configuration file MSDOS.SYS and command interpreter COMMAND.COM, finish bootup process.
From above-mentioned steps as can be known, operating system from the necessary condition that hard disk guides is:
On the hard disk boot sector, there is correct Main Boot Record;
On operating system partition, there is correct boot sector;
On operating system partition, there is correct system file.
As long as satisfy these conditions, FAT that creates out or FAT32 subregion just should be guidable.
But when creating guidable subregion, can not simply fixing data be write assigned address.Because also deposited hard disk partition table in the Main Boot Record, dos operating system has been deposited the disk parameter table in boot sector, these data all are to generate creating the division and format in the process of subregion, and the fixing data of writing direct will be destroyed these parameters, and the system that makes can't work.So must before writing data, carry out necessary modification, could create correct subregion to data.
Fig. 2 be one embodiment of the invention process flow diagram, be implemented in the bootable subregion that Linux creates down FAT or FAT32 form by following steps.
Step 1. is obtained Main Boot Record and boot sector.Main Boot Record and boot sector can read from the hard disk that formats with the DOS system partitioning, save as data file after reading, and are provided with the back step and use.Main Boot Record is a sector, and length is 512 bytes; The boot sector of FAT form is a sector, and length is 512 bytes; The boot sector of FAT32 form is 3 sectors, and length is 1536 bytes.
Step 2. pair appointment hard disk carries out subregion.Subregion can be undertaken by the system command of Linux, and subregion is necessary for first subregion of specifying hard disk, and the length of FAT subregion can not surpass 2047M, and the length of FAT32 subregion without limits.The subregion of newly creating is appointed as activity (Active).
The new subregion of creating of step 3. format may be undertaken by the linux system order.
Step 4. reads specifies 1 sector (Main Boot Record) that starts from 0 cylinder, 0 magnetic head, 1 sector on the hard disk, and depositing length in is the buffer zone 1 of 512 bytes.
The Main Boot Record file of preserving in step 5. read step 1, depositing length in is the buffer zone 2 of 512 bytes.
Step 6. begins 0 * 1be position in the buffer zone 1, and length is that the partition table content of 64 bytes writes buffer zone 2, and the starting position is 0 * 1be place.
Step 7. writes Master boot sector with the content of buffer zone 2, promptly specifies a sector that starts from 0 cylinder, 0 magnetic head, 1 sector on the hard disk.
Step 8. judges whether to be FAT32 form subregion, if change step 13; If not, then be illustrated as FAT form subregion, execution in step 9;
Step 9. reads the FAT boot sector from 1 sector of Master boot sector (specifying hard disk 0 cylinder 1 magnetic head 1 sector position), and depositing length in is the buffer zone 1 of 512 bytes;
The FAT boot sector of preserving in step 10. read step 1, depositing length in is the buffer zone 2 of 512 bytes;
Step 11. is not because the disk parameter in the buffer zone 2 generates according to designated disk, so be necessary according to the data in the buffer zone 1 data in the buffer zone 2 to be revised.The length that 0 * 0b position in the buffer zone 1 is begun is that the data (disk parameter table) of 43 bytes write buffer zone 2, and the starting position is 0 * 0b place.4 byte integer (sector number is hidden in representative) that 0 * 1c in the buffer zone 2 is begun are changed to the numerical value that equates with 2 byte integer (every magnetic track sector number) of 0 * 18 beginning.1 byte (drive letter) of 0 * 24 position in the buffer zone 2 is changed to 0 * 80 (representing first hard disk).
Step 12. writes FAT boot sector (specifying a sector of hard disk 0 cylinder 0 magnetic head 1 sector) with the content of buffer zone 2, jumps to step 17;
Step 13. reads FAT32 boot sector (3 sectors of specifying hard disk 0 cylinder 1 magnetic head 1 sector to begin), and depositing length in is the buffer zone 3 of 1536 bytes;
The FAT32 boot sector of preserving in step 14. read step 1, depositing length in is the buffer zone 4 of 1536 bytes;
Step 15. is not because the disk parameter in the buffer zone 4 generates according to designated disk, so be necessary according to the data in the buffer zone 3 data in the buffer zone 4 to be revised.The length that 0 * 0b position in the buffer zone 3 is begun is that the data (disk parameter table) of 71 bytes write buffer zone 4, and the starting position is 0 * 0b place.The length that 0 * 200 position in the buffer zone 3 is begun is that the data (FAT32 data) of 512 bytes write buffer zone 4, and the starting position is 0 * 200 place.4 byte integer (sector number is hidden in representative) that 0 * 1c in the buffer zone 4 is begun are changed to the numerical value that equates with 2 byte integer (every magnetic track sector number) of 0 * 18 beginning.1 byte (drive letter) of 0 * 40 position in the buffer zone 4 is changed to 0 * 80 (representing first hard disk).
Step 16. writes FAT32 boot sector (3 sectors of specifying hard disk 0 cylinder 0 magnetic head 1 sector to begin) with the content of buffer zone 4;
Step 17. copies to system file on the subregion, promptly writes DOS system file IO.SYS on the new subregion of creating, and MSDOS.SYS and COMMAND.COM finish then.
This computer-chronograph can directly guide the DOS system from the fdisk of new establishment, and carries out the various programs under the DOS.
In being about to the perfectly sound server navigation software of releasing, used the present invention.Software of the present invention is based upon on the CD fully, by optical disk start-up, and the Linux environment on the automatic boot cd-rom, and under this environment, server is configured, make server can finish the installation of Windows NT or Windows 2000 automatically.Wherein server hard disc is carried out subregion and used the present invention, on the hard disk of server, create FAT or the FAT32 subregion of a bootable DOS, and required file is installed by the initialize operation system with the format part.Take out CD afterwards, started voluntarily by server, server automatically performs the operating system installation program that presets from this subregion guiding DOS system, finishes the installation of Windows NT or Windows 2000.
It should be noted last that: above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although the present invention is had been described in detail with reference to the foregoing description, those of ordinary skill in the art is to be understood that: still can make amendment or be equal to replacement the present invention, and not breaking away from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (5)
1, the bootable partitioned method of a kind of establishment is characterized in that: comprises at least,
Step 1. is obtained Main Boot Record and boot sector, saves as file;
Step 2. pair appointment hard disk carries out subregion and format;
Step 3. reads the Main Boot Record and the boot sector of specifying hard disk;
Step 4. is revised Main Boot Record and the boot sector preserved in the step 1 according to the Main Boot Record of specifying hard disk and the content of boot sector;
Step 5. writes the appointment hard disk with revised Main Boot Record and boot sector;
Step 6. copies to system file on the subregion, finishes.
2, the bootable partitioned method of establishment according to claim 1, it is characterized in that: the Main Boot Record of described step 1 and boot sector read from the hard disk that formats with the DOS system partitioning, save as data file after reading, be provided with the back step and use.
3, the bootable partitioned method of establishment according to claim 1 is characterized in that: described step 2 to specifying hard disk to carry out subregion and format, can be undertaken by the linux system order, subregion is necessary for first subregion of specifying hard disk.
4, the bootable partitioned method of establishment according to claim 1 is characterized in that: the correction Main Boot Record and the boot sector of described step 4 comprise at least:
At first the judgment data form promptly judges whether the form into FAT32;
If then read the FAT32 boot sector respectively, and FAT32 boot sector file is revised to the content of the FAT32 boot sector file in the buffer zone with FAT32 boot sector in the buffer zone to buffer zone;
If not, then the content of FAT boot sector is revised, read the FAT boot sector respectively, and FAT boot sector file is revised to the content of the FAT boot sector file in the buffer zone with FAT boot sector in the buffer zone to buffer zone.
5, the bootable partitioned method of establishment according to claim 1 is characterized in that: described step 6 system file is copied on the subregion is to write DOS system file IO.SYS, MSDOS.SYS and COMMAND.COM on the new subregion of creating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN021594910A CN1216329C (en) | 2002-12-31 | 2002-12-31 | Method for establishing guidable partition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN021594910A CN1216329C (en) | 2002-12-31 | 2002-12-31 | Method for establishing guidable partition |
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| Publication Number | Publication Date |
|---|---|
| CN1512349A true CN1512349A (en) | 2004-07-14 |
| CN1216329C CN1216329C (en) | 2005-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN021594910A Expired - Fee Related CN1216329C (en) | 2002-12-31 | 2002-12-31 | Method for establishing guidable partition |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100573480C (en) * | 2008-02-29 | 2009-12-23 | 中国科学院计算技术研究所 | A kind of hard disk data protection method and system |
| WO2012159436A1 (en) * | 2011-05-20 | 2012-11-29 | 深圳市万兴软件有限公司 | Method and device for adjusting disk partitions in windows |
| CN103970557A (en) * | 2013-02-04 | 2014-08-06 | 中兴通讯股份有限公司 | Storage device and system starting method thereof |
| CN108776577A (en) * | 2018-05-04 | 2018-11-09 | 新华三技术有限公司成都分公司 | Disk management method, device, electronic equipment and storage medium |
| CN110413291A (en) * | 2019-07-18 | 2019-11-05 | 贵阳朗玛信息技术股份有限公司 | Movable storage medium and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7475278B2 (en) * | 2005-11-15 | 2009-01-06 | International Business Machines Corporation | Method, system and computer program product for recovery of formatting in repair of bad sectors in disk drives |
-
2002
- 2002-12-31 CN CN021594910A patent/CN1216329C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100573480C (en) * | 2008-02-29 | 2009-12-23 | 中国科学院计算技术研究所 | A kind of hard disk data protection method and system |
| WO2012159436A1 (en) * | 2011-05-20 | 2012-11-29 | 深圳市万兴软件有限公司 | Method and device for adjusting disk partitions in windows |
| CN103970557A (en) * | 2013-02-04 | 2014-08-06 | 中兴通讯股份有限公司 | Storage device and system starting method thereof |
| CN103970557B (en) * | 2013-02-04 | 2018-08-14 | 中兴通讯股份有限公司 | The method and storage device of storage device activation system |
| CN108776577A (en) * | 2018-05-04 | 2018-11-09 | 新华三技术有限公司成都分公司 | Disk management method, device, electronic equipment and storage medium |
| CN110413291A (en) * | 2019-07-18 | 2019-11-05 | 贵阳朗玛信息技术股份有限公司 | Movable storage medium and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1216329C (en) | 2005-08-24 |
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