WO2017173924A1

WO2017173924A1 - Method and device for switching between file systems

Info

Publication number: WO2017173924A1
Application number: PCT/CN2017/077842
Authority: WO
Inventors: 毛薛峰
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-04-06
Filing date: 2017-03-23
Publication date: 2017-10-12
Also published as: CN107273370A

Abstract

A method and device for switching between file systems. The method comprises: writing into flash of a first file system an image file of the first file system, wherein the image file is an image package obtained according to an operation configuration file of the first file system and system configuration file of a second file system, and the image package is formatted in a format supported by the second file system; and restarting the first file system so as to switch from the first file system to the second file system.

Description

Method and device for switching file system

Technical field

The present disclosure relates to the field of computer technology, for example, to a method and apparatus for switching a file system.

Background technique

In the related art, operating system Linux has become more and more popular among device manufacturers due to its unparalleled open source. For compatibility reasons, the fast switching between the embedded real-time operating system Vxworks and the operating system Linux has become a problem that many equipment vendors need to face and solve.

There are many key points in Vxworks and Linux system switching. In the fast format and initialization of file system, Vxworks is a file system based on True Flash File System (TFFS), and Linux is based on log flash file system ( Journaling Flash File System, JFFS) file system, so when the system is switched, you need to reformat and initialize the flash. For example, Vxworks is upgraded to a Linux system, usually in the boot phase, backing up files in the TFFS system, and formatting the restored files to the JFFS system. However, this approach has a limitation because the operation of the flash memory is very time consuming, so the entire system upgrade takes 20 to 30 minutes in the startup phase, resulting in poor user experience.

In the related art, there is no effective solution to the problem that the file system switching process takes too long.

Summary of the invention

The present disclosure provides a method and apparatus for switching a file system, which can shorten the time consuming process of the file system switching process and can facilitate fast switching of the operating system.

In a first aspect of the present disclosure, a method of switching a file system is provided, including:

Writing an image file in the first file system to the flash memory of the first file system, where the image file is a mirror image obtained according to the running configuration file of the first file system and the system configuration file of the second file system a package, the format of the image package being a format supported by the second file system;

Restarting the first file system to switch the first file system to the second file system.

Optionally, writing the image file in the first file system to the flash memory of the first file system includes:

The image package is programmed in the flash memory during erasing of the flash memory.

Optionally, before erasing the flash memory, the method further includes:

Backing up the contents of the flash memory to a memory image if it is detected that the flash memory is performing a read or write operation;

The read and write operations are performed on the contents of the backed up flash memory.

Optionally, before the image file in the first file system is written to the flash memory of the first file system, the method further includes: acquiring the image file in the first file system by: Obtaining the image file in a system memory in a file system, wherein, when the image file is stored in an internal storage device, reading the image file from the internal storage device into the system memory, In the case where the image file is stored on the external server side, the image file is read into the system memory through a network transmission protocol.

Optionally, the network transmission protocol comprises: a transmission control protocol TCP/Internet Protocol IP protocol.

Optionally, the first file system and the second file system each comprise one of the following: an embedded real-time operating system Vxworks, a Windows operating system Windows, and an operating system Linux.

In a second aspect of the present disclosure, an apparatus for switching a file system is provided, including:

a writing module, configured to write an image file in the first file system to the flash memory of the first file system, where the image file is according to the running configuration file of the first file system and the second file system An image package obtained by the system configuration file, the format of the image package being a format supported by the second file system;

And restarting the module, configured to restart the first file system to switch the first file system to the second file system.

Optionally, the writing module is further configured to program the image package in the flash memory during erasing of the flash memory.

Optionally, the device further includes:

a backup module configured to back up content in the flash memory to a memory image if it is detected that the flash memory is performing a read or write operation before erasing the flash memory;

An execution module is configured to perform the read and write operations on content in the flashed backup.

Optionally, the writing module is further configured to: before the image file in the first file system is written into the flash memory of the first file system, obtain the image from the system memory in the first file system. a file, wherein, in a case where the image file is stored in an internal storage device, the image file is read from the internal storage device into the system memory, and in a case where the image file is stored on an external server side, The image file is read into the system memory by a network transfer protocol.

The present disclosure also provides a non-transitory computer readable storage medium storing computer executable instructions arranged to perform the above method.

The present disclosure also provides an electronic device, the electronic device comprising:

At least one processor;

a memory communicatively coupled to the at least one processor; wherein

The memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to cause the at least one processor to perform the method described above.

Through the disclosure, the image file in the first file system is written into the flash memory of the first file system, wherein the image file is a mirror image obtained according to the running configuration file of the first file system and the system configuration file of the second file system. a package, the format of the image package being a format supported by the second file system; and restarting the first file system to switch the first file system to the second file system. The technical solution provided by the present disclosure shortens the time consuming in the file system switching process and can accelerate the switching between operating systems.

DRAWINGS

The drawings described herein are provided to provide an understanding of the present disclosure, which is a part of this application, the illustrative embodiments and the description thereof. In the drawing:

1 is a flow chart of a method of switching a file system according to an embodiment;

2 is a structural block diagram 1 of an apparatus for switching a file system according to an embodiment;

3 is a structural block diagram 2 of an apparatus for switching a file system according to an embodiment;

4 is a flow chart of a method for switching a Vxworks system to a Linux system in an alternative embodiment;

FIG. 5 is a schematic diagram showing the hardware structure of an electronic device according to an embodiment.

detailed description

The present disclosure will be described in detail below with reference to the drawings in conjunction with the embodiments. The embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

The terms "first", "second", and the like in the specification and claims of the present disclosure and the above-mentioned drawings are those which are different from each other, and do not necessarily describe a specific order or order.

In the embodiment, a method for switching a file system is provided, and FIG. 1 is a flowchart of a method for switching a file system according to the embodiment.

In step 110, the image file in the first file system is written into the flash of the first file system, where the image file is a system configuration according to the running configuration file of the first file system and the second file system. The image package obtained by the file. The format of the image package is the format supported by the second file system.

In step 120, the first file system is restarted to switch the first file system to the second file system.

The image file in the first file system is written into the flash memory of the first file system by using the foregoing processing step, where the image file is obtained according to the running configuration file of the first file system and the system configuration file of the second file system. The image package is in a format supported by the second file system, and the first file system is restarted to switch the first file system to the second file system. The format of the image package is the format supported by the second file system. For example, the second file system can be located in the Linux system, and the format of the image package is the Journaling Flash File System (JFFS) format. After the first file system, the terminal invokes the image package in the system memory, runs the running configuration file of the first file system in the image package, and switches to the second file system. The technical solution of this embodiment shortens the time consuming in the file system switching process and can speed up the switching between operating systems.

In this embodiment, writing the image file in the first file system to the flash memory of the first file system may include:

The image package is programmed in the flash memory during the erasing of the flash memory.

In this embodiment, the image file is written from the system memory of the first file system to the flash memory of the first file system, and the image package can be burned while erasing the memory, and can be burned from the head address of the memory of the first file system. Write the image package.

In this embodiment, before erasing the flash memory, the method may further include:

In the case where it is detected that the flash is performing a read or write operation, the contents of the flash are backed up to the memory image, and the read and write operations are performed on the contents of the backed up flash memory.

In the case of performing a file switching task, ensure that the flash memory is in an idle state, and if the flash memory at this moment performs a read or write operation, the read and write operations are transferred to the remaining positions.

In this embodiment, before the image file in the first file system is written to the flash memory of the first file system, the method may further include: acquiring an image file in the first file system by: obtaining the image file from the first file system Obtaining the image file in the system memory in the system, wherein, when the image file is stored in the internal storage device, the image file is read from the internal storage device into the system memory, and the image file is stored in the external server. In the case of the end, the image file is read into the system memory by the network transfer protocol.

The system memory of the above embodiment is the system memory of the terminal device running the first file system, and the image package in the flash memory is obtained from the system image, and the image package in the system memory is obtained from the pre-stored address, that is, In the case that the first file system is an image file, the image file may be temporarily stored in an internal storage device, that is, a local storage or an external server (for example, a network disk or a cloud disk).

In this embodiment, the network transmission protocol may include: a Transmission Control Protocol (TCP)/Internet Protocol (IP) protocol. The TCP/IP protocol of this embodiment may include a File Transfer Protocol (FTP) and a Trivial File Transfer Protocol (TFTP).

In this embodiment, the first file system and the second file system may each include one of the following: embedded real-time operating system Vxworks, Windows operating system Windows, and operating system Linux.

This embodiment relates to system switching of two different file system formats, and may include the above three systems.

Also provided in this embodiment is a device for switching a file system, which can implement the methods in the above embodiments and alternative embodiments. As used hereinafter, the term "module" can implement at least one of software and hardware for a predetermined function. Although the apparatus described in the following embodiments may be implemented in software, hardware, or a combination of software and hardware, may also implement the above apparatus.

FIG. 2 is a structural block diagram of an apparatus for switching a file system according to the embodiment. As shown in FIG. 2, the apparatus includes: a write module 22 and a restart module 24.

The writing module 22 is configured to write the image file in the first file system to the flash memory of the first file system, wherein the image file is obtained according to the running configuration file of the first file system and the system configuration file of the second file system. The image package is in the format supported by the second file system.

The restart module 24 is coupled to the write module 22 and configured to restart the first file system to switch the first file system to the second file system.

Through the above steps, the writing module 22 writes the image file in the first file system to the flash memory of the first file system, wherein the image file is a system configuration according to the running configuration file of the first file system and the second file system. The image packet obtained by the file is in a format supported by the second file system, and the restart module 24 restarts the first file system to switch the first file system to the second file system. The system image of the foregoing embodiment is the system memory of the terminal device running the first file system, and the format of the image package is a format supported by the second file system. For example, the second file system is a Linux system, and the format of the image package is For the Linux JFFS file system format, after restarting the first file system, the terminal invokes the image package in the system memory, runs the running configuration file of the first file system in the image package, and switches to the second file system. The technical solution of the embodiment shortens the time consuming of the file system switching process and can facilitate fast switching between operating systems.

In this embodiment, the write module 22 can also be configured to program the image package in the flash memory during the erasing of the flash memory.

FIG. 3 is a block diagram showing the structure of an apparatus for switching a file system according to the embodiment. As shown in FIG. 3, the apparatus may further include: a backup module 32 and an execution module 34.

The backup module 32 is configured to back up the contents of the memory to the memory image if it is detected that the memory is performing a read or write operation before erasing the memory.

The execution module 34 is connected to the backup module 32 and configured to perform the read and write operations on the contents of the backed up memory.

The writing module 22 may be further configured to obtain the image file from the system memory in the first file system before writing the image file in the first file system to the flash memory of the first file system, where If the image file is stored in the internal storage device, the image file is read from the internal storage device into the system memory, and when the image file is stored on the external server, the image file is read by the network transmission protocol. In system memory.

The above modules can be implemented by software or hardware. For hardware implementation, The following methods are implemented: the above modules are all located in the same processor; or, the above modules are respectively located in different processors.

An alternative embodiment of the present disclosure describes that the Vxworks system switches to a Linux system. The switching process includes: creating an image package, uploading the image package to the memory space of the Vxworks system, and non-volatile flash technology. Nor flash flash-based on-chip read and write. And erase.

During the process of making an image package, the image package can be in the Linux JFFS file system format. The contents of the image package can include the Linux software version file and the running configuration file of Vxworks.

When the image package is uploaded to the memory space of the Vxworks system, if the image package is internal system storage (such as Compact Flash (CF) card or flash (flash)), the file can be read to the system memory; External server storage (such as a network disk or cloud disk) can be transferred to system memory via TCP/IP protocols such as FTP or TFTP.

In the method described in the optional embodiment of the present disclosure, the system switching process is performed in a state where the Vxworks is running, ensuring that the file system is continuously powered during the process of switching the file system, and there is no operation for reading and writing to the flash memory, and if there are other operations for reading and writing the flash memory, The flash memory is backed up to the memory image, and the flash memory is accessed in the memory image; and the size of the image package is related to the content of the image package, and the system memory space of the memory memory allocation (Memory Allocation, malloc) is larger than the size of the image package.

In an alternative embodiment of the present disclosure, in the Vxworks running state, the configuration file in the flash memory is backed up, the backup file is generated together with the Linux version file to generate a Linux file system image package and uploaded to the memory space, all the flash memory is erased, and the Linux image package is programmed. Restart the Vxworks system. With this method, the system can be upgraded and upgraded in the state where Vxworks is running, and the Linux version can be started in the boot state, which shortens the service interruption time.

4 is a flow chart of a method for switching a Vxworks system to a Linux system according to an alternative embodiment of the present disclosure.

In step 410, the Vxworks system is run.

In step 420, the configuration file that needs to be saved in the flash memory is backed up.

In step 430, a Linux file system image package is created together with the Linux version file to be switched. This image package can be temporarily saved in the internal system storage device (file format storage, the storage device can include CF card or flash memory, etc.), or it can be saved on the external server.

In step 440, the flash memory of the Vxworks system is erased.

In step 450, the system memory space of the terminal is applied. If the image package created in step 430 is saved in the internal system storage device, the image package may be read from the storage device into the system memory space; if the image created in step 430 is mirrored The package is saved on the external server, and the image package can be uploaded to the system memory space through TCP/IP protocol (including FTP or TFTP, etc.).

In step 460, the erased flash memory is subjected to an address write operation, and the image package stored in the system memory is programmed from the head address of the flash memory.

In step 470, after the programming is completed, the Vxworks system is restarted and switched to the Linux system.

The image package created in the above step 430 is an image package of the target file system format after the switch, and the file content included in the image package can be customized.

The erase flash operation in step 440 above may be swapped with step 450 or merged with step 460 to erase the flash while burning the image pack before burning the flash.

An alternative embodiment of the present disclosure is to switch to a Linux system based on the Vxworks system, and the switching of two different file system formats may use the above steps, for example, switching from Linux to Vxworks, or switching from Linux to Windows.

The entire process of switching file systems is performed under Vxworks running state, which ensures that the service flow is not interrupted.

With the method of the alternative embodiment of the present disclosure, the service interruption time due to system version switching can be shortened.

Through the description of the foregoing embodiments, the method in the foregoing embodiment may be implemented by means of a software plus a hardware platform, or may be implemented by using a hardware. The technical solution of the present disclosure can be embodied in the form of a software product stored in a storage medium (such as a read-only memory (ROM), a random access memory (RAM). , a disk, an optical disk, including one or more instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method described in the above embodiments.

The present disclosure also provides a non-transitory computer readable storage medium. Optionally, in this embodiment, the foregoing storage medium may be configured to store computer executable instructions, the computer executable instructions being configured to perform the following methods:

Writing an image file in the first file system to the flash memory of the first file system, where the image file is obtained according to the running configuration file of the first file system and the system configuration file of the second file system Image package, the format of the image package is the format supported by the second file system;

The first file system is restarted to switch the first file system to the second file system.

Optionally, the storage medium is further arranged to store computer executable instructions arranged to perform the method of the above-described embodiments.

Optionally, in this embodiment, the foregoing storage medium may be a non-transitory storage medium, including: a U disk, a ROM, a RAM, a mobile hard disk, a magnetic disk, or an optical disk, and the like, which may store the program code, or may be temporarily State storage medium.

Optionally, in this embodiment, the processor performs the method steps described in the foregoing embodiments according to the stored program code in the storage medium.

Optionally, examples in this embodiment may refer to the examples described in the foregoing embodiments and optional embodiments.

This embodiment provides a hardware structure diagram of an electronic device. Referring to FIG. 5, the electronic device includes:

At least one processor 50, which is exemplified by a processor 50 in FIG. 5; and a memory 51, may further include a communication interface 52 and a bus 53. The processor 50, the memory 51, and the communication interface 52 can complete communication with each other through the bus 53, and the memory 51 is a flash memory. Communication interface 52 can transmit information. Processor 50 can invoke logic instructions in memory 51 to perform the methods of the above-described embodiments.

Furthermore, the logic instructions in the memory 51 described above may be implemented in the form of software functional units and sold or used as separate products, and may be stored in a computer readable storage medium.

The memory 51 is a computer readable storage medium and can be used to store a software program, a computer executable program, a program instruction or a module corresponding to the method in the embodiment. The processor 50 executes the functional application and the data processing by executing a software program, an instruction or a module stored in the memory 51, that is, implementing the method in the above method embodiment.

The memory 51 may include a storage program area and an storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to use of the terminal device, and the like. Further, the memory 51 may include a high speed random access memory, and may also include a nonvolatile memory.

The modules or steps of the present disclosure described above can be implemented with a general purpose computing device that can be centralized On a single computing device, or distributed over a network of computing devices, optionally, they may be implemented in program code executable by the computing device so that they may be stored in the storage device by the computing device To be performed, and in some cases, the steps shown or described may be performed in an order different than that herein, or they may be separately fabricated into a plurality of integrated circuit modules, or a plurality of A single integrated circuit module is implemented.

Industrial applicability

The method and apparatus for switching file systems provided by the present disclosure shorten the time consuming of the file system switching process and promote fast switching between operating systems.

Claims

A method of switching a file system, comprising:

Writing an image file in the first file system to the flash memory of the first file system, where the image file is a mirror image obtained according to the running configuration file of the first file system and the system configuration file of the second file system a package, the format of the image package being a format supported by the second file system;

Restarting the first file system to switch the first file system to the second file system.
The method of claim 1, wherein writing the image file in the first file system to the flash memory of the first file system comprises:

The image package is programmed in the flash memory during erasing of the flash memory.
The method of claim 2, before erasing the flash memory, the method further comprising:

Backing up the contents of the flash memory to a memory image if it is detected that the flash memory is performing a read or write operation;

The read and write operations are performed on the contents of the backed up flash memory.
The method of claim 1, before the image file in the first file system is written to the flash memory of the first file system, the method further comprising: acquiring the image file in the first file system by: :

Obtaining the image file from system memory in the first file system, wherein the image file is read from the internal storage device to the system if the image file is stored in an internal storage device In the memory, in a case where the image file is stored on the external server side, the image file is read into the system memory through a network transmission protocol.
The method of claim 4 wherein said network transmission protocol comprises:

Transmission Control Protocol TCP/Internet Protocol IP protocol.
The method according to any one of claims 1 to 5, wherein

The first file system and the second file system each include one of the following: embedding a real-time operating system Vxworks, Windows operating system Windows, and operating system Linux.
A device for switching a file system, comprising:

a writing module, configured to write an image file in the first file system to the flash memory of the first file system, where the image file is according to the running configuration file of the first file system and the second file system An image package obtained by the system configuration file, the format of the image package being a format supported by the second file system;

And restarting the module, configured to restart the first file system to switch the first file system to the second file system.
The apparatus of claim 7, wherein the write module is further configured to program the image package in the flash memory during erasing of the flash memory.
The apparatus of claim 8 further comprising:

a backup module configured to back up content in the flash memory to a memory image if it is detected that the flash memory is performing a read or write operation before erasing the flash memory;

An execution module is configured to perform the read and write operations on content in the flashed backup.
The apparatus according to claim 7, wherein said writing module is further configured to write an image file in said first file system from said first file system before said flash memory of said first file system Obtaining the image file in a system memory, wherein, when the image file is stored in an internal storage device, reading the image file from the internal storage device into the system memory, where the image file is stored In the case of an external server side, the image file is read into the system memory by a network transport protocol.
A computer readable storage medium storing computer executable instructions arranged to perform the method of any of claims 1-6.