CN114995852A - Device upgrade method, device and computer-readable storage medium - Google Patents

Abstract

The invention discloses a device upgrade method, device and computer-readable storage medium. The method includes: during the upgrade process of the device, copying the upgrade file to the upgrade mirror area; when detecting the upgrade mirror in the upgrade mirror area When the device is complete, restart the device; after the device is restarted, copy the upgrade image to the main image area; when it is detected that the main image in the main image area is complete, restart the device again to complete the device upgrade; the invention solves the problem that the equipment cannot be started normally after being powered on again after a sudden power failure during the equipment upgrade process, and realizes the automatic recovery of the upgrade startup abnormality caused by the power failure without manual intervention, so as to achieve no perception recovery to ensure the normal use of the device.

Description

Device upgrade method, device and computer-readable storage medium

technical field

The present invention relates to the technical field of network communication, and in particular, to a device upgrading method, device and computer-readable storage medium.

Background technique

With the continuous development of computer technology, the application scope of network technology has become more and more extensive, and as the core of Ethernet-based equipment such as computers, printers, servers and IP phones, it also puts forward higher requirements for the forwarding performance of switches . Therefore, in order to improve the performance of the switch, many different versions of the same type of switch are also derived. When the application of the main switch cannot meet the application requirements, etc., the version of the switch needs to be upgraded.

However, during the switch upgrade process, if there is a sudden power failure, after the switch is powered on again, it is easy to hang up and cannot start normally. In order to solve the problem that the switch cannot be started normally due to a sudden power failure, there are two common solutions at present; the first one is that the user enters Uboot (universal boot loader) through the serial port of the switch, and then restarts the upgrade and restart, at this time the switch Serial port support must be provided, and the user needs to manually enter Uboot to restore; the second is that the switch implements the dual mirror function, and the user enters Uboot through the serial port to switch the backup image to start; at this time, the switch must also provide serial port support, and the user needs to manually enter Uboot to restore and switch The backup image is the startup image, and after startup, the primary image area is restored through the upgrade.

For the above two solutions, in the prior art, a MiniOS (mini operating system) is embedded in Uboot. When a sudden power failure causes the device to fail to start normally, Uboot will be booted to start MiniOS, and MiniOS will load an upgrade page, the user can manually re-upgrade to restore the normal startup of the switch, however, it is still unable to achieve non-aware recovery, and the user needs to manually upgrade and restore.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a device upgrade method, device, and computer-readable storage medium, which realize automatic recovery of upgrade startup abnormality caused by power failure without manual intervention, achieve non-perceptual recovery, and ensure the normal operation of the device. use.

In a first aspect, an embodiment of the present invention provides a device upgrade method, including:

During the upgrade process of the device, copy the upgrade file to the upgrade mirror area;

When it is detected that the upgrade image in the upgrade image area is complete, restart the device;

After the device is restarted, copy the upgrade image to the main image area;

When it is detected that the master image in the master image area is complete, the device is restarted again to complete the device upgrade.

As an improvement of the above solution, when it is detected that the upgrade image in the upgrade image area is complete, restarting the device includes:

performing a first check on the upgrade image;

When passing the first check, it is determined that the upgrade image is complete, and the upgrade flag is set;

After completing the setting of the upgrade flag, restart the device;

When the first check is not passed, it is determined that the upgrade image is incomplete, and an upgrade failure prompt is issued.

As an improvement of the above solution, after the device is restarted, copying the upgrade image to the main image area includes:

After the device is restarted, read the upgrade flag, and determine whether the upgrade flag is a first preset value;

When the upgrade flag bit is the first preset value, the upgrade image is copied to the main image area.

As an improvement of the above solution, when it is detected that the master image in the master image area is completed, restarting the device again includes:

performing a second check on the primary image;

When passing the second check, it is determined that the primary image is complete, and the upgrade flag is reset;

After completing the reset of the upgrade flag bit, restart the device;

When the second check is not passed, it is determined that the primary image is incomplete, and the upgrade image continues to be copied to the primary image.

As an improvement of the above solution, after completing the reset of the upgrade flag bit and restarting the device, the method further includes:

reading the upgrade flag bit, and judging whether the upgrade flag is a second preset value;

When the upgrade flag is the second preset value, the device starts normally;

When the upgrade flag bit is not the second preset value, continue to copy the upgrade image to the primary image until the primary image passes the second check.

As an improvement of the above solution, the upgrade image area, the main image area, the upgrade flag and Uboot are configured in the FLASH of the device.

As an improvement of the above solution, performing the first verification on the upgrade image includes:

calculating the CRC of the upgrade image;

When the CRC of the upgrade image is consistent with the CRC stored in the upgrade file header, it is determined that the first check is passed;

When the CRC of the upgrade image is inconsistent with the CRC stored in the header of the upgrade file, it is determined that the first check is not passed.

As an improvement of the above solution, the performing a second check on the primary image includes:

Calculate the CRC of the primary image;

When the CRC of the main image is consistent with the CRC stored in the image header of the upgrade image area, it is determined that the second check is passed;

When the CRC of the main image is inconsistent with the CRC stored in the image header of the upgrade image area, it is determined that the second check is not passed.

In a second aspect, an embodiment of the present invention provides a device, including:

memory for storing computer programs;

The processor is configured to implement the device upgrading method according to any one of the first aspect when executing the computer program.

In a third aspect, an embodiment of the present invention provides a computer-readable storage medium, where the computer-readable storage medium includes a stored computer program, wherein when the computer program runs, a device where the computer-readable storage medium is located is controlled The device upgrading method according to any one of the first aspect is performed.

Compared with the prior art, the beneficial effects of the embodiments of the present invention are: during the upgrade process of the device, the upgrade file is copied to the upgrade mirror area; when it is detected that the upgrade mirror in the upgrade mirror area is complete, the device; after the device is restarted, copy the upgrade image to the main image area; when it is detected that the main image in the main image area is complete, restart the device again to complete the device upgrade. The embodiment of the present invention solves the problem that the equipment (such as a switch) cannot be started normally after a sudden power failure during the upgrade process, and realizes that the abnormal upgrade startup caused by the power failure is automatically restored without manual intervention. To achieve non-sensing recovery, to ensure the normal use of the switch.

Description of drawings

In order to illustrate the technical solutions of the present invention more clearly, the accompanying drawings occupied in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, which are very important in the art. For those of ordinary skill, other drawings can also be obtained from these drawings without any creative effort.

1 is a flowchart of a device upgrading method provided by an embodiment of the present invention;

2 is a schematic diagram of a FLASH layout of a device provided by an embodiment of the present invention;

3 is a flow chart of equipment upgrade provided by an embodiment of the present invention;

4 is a schematic diagram of a header structure of an upgrade image provided by an embodiment of the present invention;

FIG. 5 is a schematic block diagram of a device provided by an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

Referring to FIG. 1, in fact, a flowchart of a device upgrading method provided by an embodiment of the present invention, the device upgrading method specifically includes:

S1: During the upgrade process of the device, copy the upgrade file to the upgrade mirror area;

S2: when it is detected that the upgrade image in the upgrade image area is complete, restart the device;

S3: after the device is restarted, copy the upgrade image to the main image area;

S4: When it is detected that the master image in the master image area is complete, restart the device again to complete the device upgrade.

In the embodiment of the present invention, a switch is taken as an example to describe a device upgrade process.

The upgrade mirror area, the main mirror area, the upgrade flag and the Uboot are configured in the FLASH of the switch, as shown in FIG. 2 . It should be noted that the order of the upgrade mirror area and the main mirror area in the FLASH is not fixed, and can be set as required.

Exemplarily, the normal upgrade of the switch can be divided into two stages. The first stage is the upgrade file transfer. In this stage, the upgrade file will be stored in the upgrade image area of FLASH. After the upgrade file transfer is completed, the integrity of the upgrade image is checked. If the upgrade image is complete, it means that all the upgrade files have been copied to the upgrade image, and then restart the switch; the second stage is image overwriting. In the Uboot stage, Uboot will start copying, copy the upgrade image to the main image area, and copy After completion, check the integrity of the master image. If the master image is complete, it means that all the upgrade files have been copied to the master image area, and then restart the switch again. At this time, the switch can be started normally and the upgrade is complete. During the upgrade process of the switch, no matter what stage it is suddenly powered off, it can still be started normally without manual intervention, which realizes the automatic recovery of the abnormal upgrade startup caused by the power failure, and can achieve non-sensing recovery to ensure that the switch is in good condition. Normal use. It should be noted that, after the upgrade files are copied to the upgrade mirror area, the upgrade mirror area including the upgrade files can be generated in the upgrade mirror area. Similarly, after the upgrade is copied to the main mirror area, the main mirror area can generate the main mirror area including the upgrade files. mirror.

In an optional embodiment, when it is detected that the upgrade image in the upgrade image area is complete, restarting the device includes:

performing a first check on the upgrade image;

When passing the first check, it is determined that the upgrade image is complete, and the upgrade flag is set;

After completing the setting of the upgrade flag, restart the device;

When the first check is not passed, it is determined that the upgrade image is incomplete, and an upgrade failure prompt is issued.

In an optional embodiment, after the device is restarted, copying the upgrade image to the main image area includes:

After the device is restarted, read the upgrade flag, and determine whether the upgrade flag is a first preset value;

When the upgrade flag bit is the first preset value, the upgrade image is copied to the primary image.

In an optional embodiment, when it is detected that the master image in the master image area is complete, restarting the device again includes:

performing a second check on the primary image;

When passing the second check, it is determined that the primary image is complete, and the upgrade flag is reset;

After completing the reset of the upgrade flag bit, restart the device;

When the second check is not passed, it is determined that the primary image is incomplete, and the upgrade image continues to be copied to the primary image.

In an optional embodiment, after completing the reset of the upgrade flag bit and restarting the device, the method further includes:

reading the upgrade flag bit, and judging whether the upgrade flag is a second preset value;

When the upgrade flag is the second preset value, the device starts normally;

When the upgrade flag bit is not the second preset value, continue to copy the upgrade image to the primary image until the primary image passes the second check.

Wherein, the first preset value is 1, and the second preset value is 0.

In an optional embodiment, the performing the first verification on the upgrade image includes:

calculating the CRC of the upgrade image;

Exemplarily, the upgrade file includes an upgrade file header and an upgrade file body, and the upgrade file header includes a CRC, an upgrade file main body length (length), and a blank PAD, such as a 4-byte CRC and a 4-byte upgrade file main body length. (length), 8-byte blank PAD (for later expansion). When compiling, the CRC of the upgrade image will be calculated by the standard CRC algorithm, and then filled into the header of the upgrade image together with the image length. Then, the upgrade image header and the upgrade image will be assembled into the upgrade file that is finally provided to the user. The upgrade image header includes CRC, upgrade image length, blank PAD; the same is true for the main image; the file structure is shown in Figure 4.

When the CRC of the upgrade mirror area is consistent with the CRC of the header of the upgrade mirror area, it is determined that the first check is passed;

When the CRC of the upgrade mirror area is inconsistent with the CRC of the header of the upgrade mirror area, it is determined that the first check is not passed.

In an optional embodiment, the performing the second check on the primary image includes:

Calculate the CRC of the primary image;

When the CRC of the main image is consistent with the CRC stored in the image header of the upgrade image area, it is determined that the second check is passed;

When the CRC of the main image is inconsistent with the CRC stored in the image header of the upgrade image area, it is determined that the second check is not passed.

When copying, the upgrade image (including the header) is copied to the main image area. After copying, the CRC calculated from the main image area except the header is compared with the CRC stored in the image header of the upgrade image area.

The entire switch upgrade process according to the embodiment of the present invention will be described below with reference to FIG. 3 .

Step 1: Start the upgrade;

Step 2: Copy the upgrade file to the upgrade mirror area;

Step 3: judge whether the upgrade image CRC check is passed; if not, prompt the user that the upgrade fails; if so, set the upgrade flag to 1;

Step 4: Restart the switch;

Step 5: determine whether the upgrade flag is 1; if not, it means that there is no upgrade file, and jump to step 11, where the switch starts normally with the old image in step 11; if so, jump to the next step;

Step 6: Copy the upgrade image to the main image area;

Step 7: judge whether the main image CRC check is passed; if not, return to step 6; if so, jump to the next step;

Step 8: Set the upgrade flag to 0;

Step 9: Restart the switch;

Step 10: determine whether the upgrade flag is 0; if not, jump to step 6; if so, it means that there is no upgrade file, and jump to the next step;

Step 11: Start the switch normally.

In the embodiment of the present invention, during the switch upgrade process, when a sudden power failure occurs in the file transfer stage, since the mirror CRC check has not been performed, the upgrade flag is still 0, so after the switch is powered on again, the switch can use the old Mirror startup; when there is a sudden power failure during the mirror overlay stage after restarting, since the upgrade flag has not been set to 0, after the power is turned on again, the mirror overlay action will be performed again because the upgrade flag is detected to be 1 until the final mirror overlay. After completion, clear the upgrade flag bit, so that no matter at which stage of the whole upgrade process the switch has a sudden power failure, it will not cause the problem that the switch cannot be started after power-on again; at the same time, the entire upgrade process does not require manual intervention, and can Recover the abnormal upgrade startup caused by power failure, achieve non-perceptual recovery, and ensure the normal use of users.

Embodiment 2

An embodiment of the present invention provides a device, including:

memory for storing computer programs;

The processor is configured to implement the device upgrading method according to any one of the embodiments when executing the computer program.

When the processor executes the computer program, the steps in the above embodiments of the device upgrading method are implemented, for example, steps S1-S4 shown in FIG. 1 .

Exemplarily, the device may be a switch or other gateway device. As shown in FIG. 5, the device includes: at least one processor 11, such as a CPU, at least one network interface 14 or other user interface 13, memory 15, at least one communication bus 12, and the communication bus 12 is used to realize the communication between these components. Connect communication. The user interface 13 may optionally include a USB interface, other standard interfaces, and wired interfaces. The network interface 14 may optionally include a Wi-Fi interface and other wireless interfaces. The memory 15 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk memory. The memory 15 may optionally include at least one storage device located remotely from the aforementioned processor 11 .

In some embodiments, memory 15 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof:

The operating system 151 includes various system programs for implementing various basic services and processing hardware-based tasks;

program 152.

Specifically, the processor 11 is configured to call the program 152 stored in the memory 15 to execute the device upgrade method described in the above embodiment, for example, steps S1-S4 shown in FIG. 1 .

Exemplarily, the computer program may be divided into one or more modules/units, and the one or more modules/units are stored in the memory and executed by the processor to accomplish the present invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, and the instruction segments are used to describe the execution process of the computer program in the apparatus.

The device may include, but is not limited to, a processor, a memory. Those skilled in the art can understand that the schematic diagram is only an example of a switch, and does not constitute a limitation on the switch, and may include more or less components than the one shown, or combine some components, or different components.

The so-called processor 11 may be a central processing unit (Central Processing Unit, CPU), and may also be other general-purpose processors, digital signal processors (Digital Signal Processors, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), Off-the-shelf programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The processor 11 is the control center of the device, and uses various interfaces and lines to connect various parts of the entire switch.

The memory 15 can be used to store the computer programs and/or modules, and the processor 11 realizes the above by running or executing the computer programs and/or modules stored in the memory and calling the data stored in the memory. various functions of the device. The memory 15 may mainly include a stored program area and a stored data area, wherein the stored program area may store an operating system, an application program required for at least one function (such as a sound playback function, an image playback function, etc.), and the like; the storage data area may Stores data (such as audio data, phonebook, etc.) created according to the use of the mobile phone, and the like. In addition, the memory 15 may include high-speed random access memory, and may also include non-volatile memory such as hard disk, internal memory, plug-in hard disk, Smart Media Card (SMC), Secure Digital (SD) card, Flash Card, at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

Wherein, if the modules/units integrated in the device are implemented in the form of software functional units and sold or used as independent products, they may be stored in a computer-readable storage medium. Based on this understanding, the present invention can implement all or part of the processes in the methods of the above embodiments, and can also be completed by instructing relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium. When the program is executed by the processor, the steps of the foregoing method embodiments can be implemented. Wherein, the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file or some intermediate form, and the like. The computer-readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM, Read-Only Memory) , Random Access Memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium, etc.

Embodiment 3, an embodiment of the present invention provides a computer-readable storage medium, where the computer-readable storage medium includes a stored computer program, wherein when the computer program runs, a device where the computer-readable storage medium is located is controlled The device upgrade method according to any one of the embodiments is executed.

It should be noted that the device embodiments described above are only schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical unit, that is, it can be located in one place, or it can be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment. In addition, in the drawings of the apparatus embodiments provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, which may be specifically implemented as one or more communication buses or signal lines. Those of ordinary skill in the art can understand and implement it without creative effort.

The above are the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, many improvements and modifications can be made. It is regarded as the protection scope of the present invention.

Claims (10)

1. A method for upgrading a device, comprising:

copying an upgrade file to an upgrade mirror image area in the upgrade process of the equipment;

when the upgrade image in the upgrade image area is detected to be complete, restarting the equipment;

after the equipment is restarted, copying the upgrading mirror image to a main mirror image area;

and when the primary mirror image in the primary mirror image area is detected to be complete, restarting the equipment again to finish equipment upgrading.

2. The device upgrade method according to claim 1, wherein the restarting the device when detecting that the upgrade image in the upgrade image area is complete comprises:

performing first verification on the upgrade mirror image;

when the upgrade image passes the first check, determining that the upgrade image is complete, and positioning an upgrade flag bit;

restarting the equipment after the upgrading flag bit is set;

and when the first verification is not passed, determining that the upgrade mirror image is incomplete, and sending an upgrade failure prompt.

3. The device upgrade method of claim 2, wherein said copying the upgrade image to the primary image area after the device reboots comprises:

after the equipment is restarted, reading the upgrading zone bit and judging whether the upgrading zone bit is a first preset value or not;

and when the upgrading flag bit is the first preset value, copying the upgrading mirror image to a primary mirror image area.

4. The device upgrade method according to claim 3, wherein the restarting the device again when detecting that the primary mirroring in the primary mirroring area is complete comprises:

performing a second check on the master image;

when the second verification is passed, determining that the primary mirror image is complete, and resetting the upgrading flag bit;

restarting the equipment after the upgrade flag bit is reset;

and when the second verification is not passed, determining that the primary mirror image is incomplete, and continuously copying the upgrade mirror image to the primary mirror image.

5. The device upgrade method as claimed in claim 4, wherein said restarting said device after completion of said upgrade flag bit reset further comprises:

reading the upgrading flag bit, and judging whether the upgrading flag bit is a second preset value or not;

when the upgrading flag bit is the second preset value, the equipment is normally started;

and when the upgrading flag bit is not the second preset value, continuously copying the upgrading mirror image to the main mirror image until the main mirror image passes the second verification.

6. The device upgrade method according to claim 1, wherein the upgrade mirror region, the primary mirror region, an upgrade flag bit, and a Uboot are configured in a FLASH of the device.

7. The device upgrade method according to claim 2, wherein the first verifying the upgrade image comprises:

calculating CRC of the upgrade image;

when the CRC of the upgrade mirror image is consistent with the CRC stored in the head of the upgrade file, determining that the first check is passed;

and when the CRC of the upgrade image is inconsistent with the CRC stored in the head of the upgrade file, determining that the first check is not passed.

8. The device upgrade method according to claim 4, wherein the second checking the master image comprises:

calculating the CRC of the main mirror image;

when the CRC of the main mirror image is consistent with the CRC stored in the mirror image head of the upgrading mirror image area, determining that the second check is passed;

and when the CRC of the main image is inconsistent with the CRC stored in the image head of the upgrading image area, determining that the second check is not passed.

9. An apparatus, comprising:

a memory for storing a computer program;

a processor for implementing the device upgrade method as claimed in any one of claims 1 to 8 when executing the computer program.

10. A computer-readable storage medium, comprising a stored computer program, wherein the computer program, when executed, controls an apparatus in which the computer-readable storage medium is located to perform the apparatus upgrade method according to any one of claims 1 to 8.

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