CN117519760A - BMC online upgrading method and device - Google Patents

BMC online upgrading method and device Download PDF

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Publication number
CN117519760A
CN117519760A CN202311301814.4A CN202311301814A CN117519760A CN 117519760 A CN117519760 A CN 117519760A CN 202311301814 A CN202311301814 A CN 202311301814A CN 117519760 A CN117519760 A CN 117519760A
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CN
China
Prior art keywords
bmc
upgraded
version
upgrading
flash
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Pending
Application number
CN202311301814.4A
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Chinese (zh)
Inventor
杨宇
袁海军
彭玉光
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CLP Kesiyi Technology Co Ltd
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CLP Kesiyi Technology Co Ltd
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Priority to CN202311301814.4A priority Critical patent/CN117519760A/en
Publication of CN117519760A publication Critical patent/CN117519760A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • G06F8/65—Updates
    • G06F8/654—Updates using techniques specially adapted for alterable solid state memories, e.g. for EEPROM or flash memories
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G06F11/1415—Saving, restoring, recovering or retrying at system level
    • G06F11/1433—Saving, restoring, recovering or retrying at system level during software upgrading
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G06F11/1446—Point-in-time backing up or restoration of persistent data
    • G06F11/1448—Management of the data involved in backup or backup restore
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/70—Software maintenance or management
    • G06F8/71—Version control; Configuration management

Abstract

The invention provides a BMC online upgrading method and device, wherein the method comprises the following steps: and transmitting the file to be upgraded to a storage medium eMMC mounted on the BMC system. And executing the upgrade script program to perform version matching, and ensuring that the updated version number is higher than the current version and the subsequent upgrading process can be continuously executed. After the version matching is passed, starting to upgrade the main flash, and after the main flash is successfully upgraded, writing an upgrade success identification in an upgrade identification file of the storage medium, and restarting the BMC system. Reading an upgrade identification file in a storage medium in a system background, calibrating whether the upgraded BMC version number is consistent with the BMC version number to be upgraded if the upgrade identification file is scanned to be an upgrade success identification, and starting to execute the process of upgrading the standby flash if the upgrade identification file is consistent with the BMC version number to be upgraded. The technical scheme of the invention solves the problems of low reliability, low efficiency and high upgrading cost of online upgrading of the dual flash BMC system in the prior art.

Description

BMC online upgrading method and device
Technical Field
The invention relates to the technical field of computers, in particular to a BMC online upgrading method and device.
Background
BMC chips are widely integrated in products such as high-performance data network testers, servers and the like, independent systems are operated in the chips, interaction with a processor operating system is supported, and information of system operation including temperature, voltage, fan rotation speed and the like is monitored in real time conveniently. In the running process of the BMC, a flash device is used for storing the firmware, and the generated firmware is generally burnt into the flash in an off-line mode and then welded on the board card. Since the functions of the BMC system may need to be updated and maintained later, in many scenarios, offline programming is performed by using a dedicated programming tool after the corresponding flash is taken down, and then the BMC system is soldered again after programming is completed. In order to ensure the continuity and reliability of BMC operation, a dual-flash BMC system is gradually adopted in complex equipment such as a high-performance network data tester, wherein the dual-flash BMC system is one main flash and one standby flash, and the dual-flash BMC system is automatically started from the standby flash under the condition that the main flash fails or the firmware system is abnormal and cannot be started normally, so that the problem of upgrading the main flash and the standby flash is also related. If the two flash sheets are directly taken down for burning, the efficiency is lower, and the use experience of a user is also affected. Some manufacturers put forward a dual flash-oriented upgrade scheme, and adopt a scheme of synchronously upgrading two flash slices, but lack of strict calibration on version, if the upgraded firmware is wrong, the system cannot be started from any flash slice.
Therefore, a highly reliable online upgrading method is necessary to be designed, the online upgrading of the double flash can be efficiently completed, the running reliability of the system is ensured, the efficiency is improved, and the cost is saved.
Therefore, a BMC online upgrading method and device with high reliability and cost saving can efficiently finish online upgrading of double flash is needed.
Disclosure of Invention
The invention mainly aims to provide a BMC online upgrading method and device, which are used for solving the problems of low reliability, low efficiency and high upgrading cost of online upgrading of a dual flash BMC system in the prior art.
In order to achieve the above purpose, the invention provides a BMC online upgrading method, which specifically comprises the following steps:
s1, a file to be upgraded comprises: and transmitting the BMC firmware to be upgraded, a version file corresponding to the BMC firmware to be upgraded and an upgrading script program to a storage medium eMMC mounted on the BMC system.
S2, decompressing the file to be upgraded after the transmission is completed, executing the upgrade script program, performing version matching, and ensuring that the updated version number is higher than the current version and then the subsequent upgrading process can be continuously executed.
And S3, after the version matching is passed, starting to upgrade the main flash, and after the main flash is successfully upgraded, writing an upgrade success identifier into an upgrade identifier file of the storage medium eMMC, and restarting the BMC system.
S4, if the BMC system is started successfully, reading an upgrade identification file in the storage medium eMMC in a system background, if the upgrade identification is scanned successfully, calibrating whether the upgraded BMC version number is consistent with the BMC version number to be upgraded, and if so, starting to execute the process of upgrading the standby flash.
And S5, if the BMC system cannot be started normally from the main flash, automatically starting the BMC system of the original version from the standby flash, upgrading the firmware of the appointed version into the main flash after starting, and still being the firmware of the appointed version after starting the subsequent BMC systems.
Further, the step S1 specifically includes the following steps:
s1.1, packaging the BMC firmware to be upgraded, the version file and the upgrading script into a compressed package file.
S1.2, after network connection is established with the BMC system running currently, the file to be upgraded is transmitted to a storage medium eMMC mounted on the BMC system in a scp or tftp mode.
Further, the step S2 specifically includes the following steps:
s2.1, decompressing the file to be upgraded after the transmission of the file to be upgraded is completed, and executing an upgrade script program in the file to be upgraded under the BMC system.
S2.2, version matching is performed firstly in the upgrading process, namely, the current BMC version number and the BMC version number to be upgraded are read, the relation between the current BMC version number and the BMC version number to be upgraded is judged, and the follow-up process is continued to be executed under the condition that the BMC version number to be upgraded is higher than the current BMC version number, wherein the BMC version number to be upgraded is stored in a version file, and the BMC version number to be upgraded is the current latest version.
S2.3, if the version matching result does not meet the requirement, directly exiting the upgrading process.
Further, the step S3 specifically includes the following steps:
s3.1, after the version matching is passed, starting to upgrade the main flash, calibrating the integrity of BMC firmware before programming the main flash program, and erasing mtd files corresponding to the main flash after calibration.
And S3.2, writing firmware into the mtd file, and calibrating after writing is completed.
And S3.3, writing the identification which is successfully upgraded into the identification file in the storage medium eMMC after calibration is correct, and restarting the BMC system.
Further, the process of upgrading the standby flash in step S4 specifically includes the following steps:
s4.1, executing a calibration process, namely reading the current BMC version number and the BMC version number to be upgraded, if the current BMC version number and the BMC version number to be upgraded are consistent, then considering that the main flash is successfully upgraded, automatically backing up the BMC firmware of the new version, and then continuously executing a process of upgrading the standby flash.
S4.2, backing up the BMC firmware to be upgraded, and copying the BMC firmware to a folder commanded by a version number.
S4.3, writing the standby flash into mtd equipment files corresponding to the standby flash when upgrading the standby flash, and indicating successful upgrading after writing is completed and calibration is qualified; if the current BMC version number is inconsistent with the BMC version number to be upgraded after calibration, the main flash is wrongly upgraded, and the standby flash is quitted.
The invention also provides a BMC online upgrading device, which comprises: the device comprises a flash memory, a storage medium eMMC and a processor, wherein the BMC online upgrading device is started through firmware in a flash connected with the BMC online upgrading device, and the firmware is programmed into the flash in the upgrading process; the storage medium eMMC is used for storing BMC firmware to be upgraded, a version file corresponding to the BMC firmware to be upgraded and an upgrade script program; an upgrade script is executed in the processor to complete the upgrade process.
The invention has the following beneficial effects:
the invention realizes the upgrading function in the mode of upgrading the script program, supports writing the upgrading script program outside, and then synchronously transmits the upgrading script program and the BMC firmware to be upgraded to the system, and can directly call the upgrading script program to execute the upgrading process. Compared with the mode of integrating the upgrading function in the firmware, the method does not need to write an upgrading module in firmware generating codes and compile and debug, has higher flexibility, and is easy to modify and test an upgrading program.
The invention realizes strict version matching and calibration flow, matches the BMC version number to be upgraded in the version file with the current BMC version number when upgrading the main flash, and ensures that the subsequent upgrading process can be executed when the new version number after upgrading is higher; the updated main flash version and the BMC version number to be updated are compared before the standby flash is updated, and the standby flash is continuously updated after the main flash and the BMC version number to be updated are ensured to be consistent, namely, the standby flash can be updated under the condition that the main flash is updated and the version is correct, the version consistency is ensured, and the updated firmware meets the requirements.
And backing up the upgrade firmware in the storage medium eMMC after the main flash is successfully upgraded, and naming the backup folder by the version number. The previous versions of firmware are stored while satisfying the capacity of the storage medium. Supporting selection of a firmware version to be recovered under the condition of upgrade failure, specifically, specifying in the form of parameters when executing an upgrade script program, namely upgrading the firmware of a previously specified version; if the parameter is not specified, the firmware of the previous version is directly restored, so that higher flexibility is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art. In the drawings:
FIG. 1 shows a flowchart of a BMC online upgrade method according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The BMC online upgrading method shown in FIG. 1 specifically comprises the following steps:
s1, a file to be upgraded comprises: and transmitting the BMC firmware to be upgraded, a version file corresponding to the BMC firmware to be upgraded and an upgrading script program to a storage medium eMMC mounted on the BMC system. The file to be upgraded is the latest BMC firmware, the version file is an xml format file, and version information of the BMC firmware to be upgraded is stored in the version file.
S2, decompressing the file to be upgraded after the transmission is completed, executing the upgrade script program, performing version matching, and ensuring that the updated version number is higher than the current version and then the subsequent upgrading process can be continuously executed.
And S3, after the version matching is passed, starting to upgrade the main flash, and after the main flash is successfully upgraded, writing an upgrade success identifier into an upgrade identifier file of the storage medium eMMC, and restarting the BMC system.
S4, if the BMC system is started successfully, reading an upgrade identification file in the storage medium eMMC in a system background, if the upgrade identification is scanned successfully, calibrating whether the upgraded BMC version number is consistent with the BMC version number to be upgraded, and if so, starting to execute the process of upgrading the standby flash.
And S5, if the BMC system cannot be started normally from the main flash, automatically starting the BMC system of the original version from the standby flash, upgrading the firmware of the appointed version into the main flash after starting, and still being the firmware of the appointed version after starting the subsequent BMC systems. Under the condition of failure of upgrading, the firmware of the appointed version can be automatically recovered, and the running reliability and continuity of the system are ensured. The backup flash is programmed with the original version of flash, the main flash is upgraded after the version is started, the firmware of a specified previous version is programmed into the main flash, the firmware is all stored in the storage medium eMMC, the version numbers are used as folders for distinguishing, and the specified version of firmware is automatically recovered under the condition that the specified upgrading of the upgrading script program is failed.
The invention discloses a BMC online upgrading method which can effectively realize double BMC FLASH online upgrading and support the process of completing the upgrading in a simple instruction control mode, and has obvious advantages compared with the traditional upgrading mode. The reliability of upgrading is guaranteed through a strict version calibration mechanism, the firmware of the appointed version can be recovered under the condition of failure in upgrading, the method is flexible and efficient, and the BMC system is ensured to be always in a stable running state.
Specifically, the step S1 specifically includes the steps of:
s1.1, packaging the BMC firmware to be upgraded, the version file and the upgrading script into a compressed package file.
S1.2, after network connection is established with the BMC system running currently, the file to be upgraded is transmitted to a storage medium eMMC mounted on the BMC system in a scp or tftp mode.
Specifically, the step S2 specifically includes the following steps:
s2.1, decompressing the file to be upgraded after the transmission of the file to be upgraded is completed, and executing an upgrade script program in the file to be upgraded under the BMC system. The upgrade function is realized in a mode of executing the upgrade script program, so that the upgrade function is convenient to modify, the upgrade function is not integrated into the firmware, the code of the generated firmware is not required to be modified and compiled again when the upgrade function is modified, and the flexibility of the upgrade process is improved.
S2.2, version matching is performed firstly in the upgrading process, namely, the current BMC version number and the BMC version number to be upgraded are read, the relation between the current BMC version number and the BMC version number to be upgraded is judged, and the follow-up process is continued to be executed under the condition that the BMC version number to be upgraded is higher than the current BMC version number, wherein the BMC version number to be upgraded is stored in a version file, and the BMC version number to be upgraded is the current latest version.
S2.3, if the version matching result does not meet the requirement, directly exiting the upgrading process.
Specifically, the step S3 specifically includes the following steps:
s3.1, after the version matching is passed, starting to upgrade the main flash, calibrating the integrity of BMC firmware before programming the main flash program, and erasing mtd files corresponding to the main flash after calibration.
S3.2, then writing the firmware into a mtd file (dev catalog), and calibrating after writing.
And S3.3, writing the identification which is successfully upgraded into the identification file in the storage medium eMMC after calibration is correct, and restarting the BMC system.
Specifically, the process of upgrading the standby flash in step S4 specifically includes the following steps:
s4.1, executing a calibration process, namely reading the current BMC version number and the BMC version number to be upgraded, if the current BMC version number and the BMC version number to be upgraded are consistent, then considering that the main flash is successfully upgraded, automatically backing up the BMC firmware of the new version, and then continuously executing a process of upgrading the standby flash.
S4.2, backing up the BMC firmware to be upgraded, and copying the BMC firmware to a folder commanded by a version number.
S4.3, writing the standby flash into mtd equipment files corresponding to the standby flash when upgrading the standby flash, and indicating successful upgrading after writing is completed and calibration is qualified; if the current BMC version number is inconsistent with the BMC version number to be upgraded after calibration, the main flash is wrongly upgraded, and the standby flash is quitted.
The strict version matching and calibration flow is realized, the version matching and calibration are needed when two flash sheets are upgraded, and the version matching is to match the current version with the version number of the BMC to be upgraded, so that the upgrading is ensured under the condition that the version number is higher. When the standby flash is upgraded, calibration is needed, namely, the version number after the upgrade is matched with the version number of the BMC to be upgraded, and when the version number and the BMC are consistent, the upgrade is accurate, then the process of upgrading the standby flash is executed, and the upgrade reliability is ensured in this way.
Example two
A BMC online upgrade apparatus, comprising: the device comprises a flash memory, a storage medium eMMC and a processor, wherein the BMC online upgrading device is started through firmware in a flash connected with the BMC online upgrading device, and the firmware is programmed into the flash in the upgrading process; the storage medium eMMC is used for storing BMC firmware to be upgraded, a version file corresponding to the BMC firmware to be upgraded and an upgrade script program; an upgrade script is executed in the processor to complete the upgrade process.
The BMC online upgrading method and device provided by the invention support the programming of the dual BMC flash by adopting an online upgrading mode. The upgrade script program is executed in the system to start upgrading, version matching and verification processes are strictly carried out, and the upgrade of the standby flash can be started under the condition that the main flash is ensured to be upgraded and normally started; if the system cannot be started due to failure of upgrading of the main flash, the system is automatically started from the standby flash, and the appointed version is restored to the main flash. The method not only can realize online upgrade, but also has good reliability, and ensures that the BMC is always in a stable working state.
It should be understood that the above description is not intended to limit the invention to the particular embodiments disclosed, but to limit the invention to the particular embodiments disclosed, and that the invention is not limited to the particular embodiments disclosed, but is intended to cover modifications, adaptations, additions and alternatives falling within the spirit and scope of the invention.

Claims (6)

1. The BMC online upgrading method is characterized by comprising the following steps of:
s1, a file to be upgraded comprises: the BMC firmware to be upgraded, a version file corresponding to the BMC firmware to be upgraded and an upgrading script program are transmitted to a storage medium eMMC mounted on the BMC system;
s2, decompressing the file to be upgraded after the transmission is completed, executing an upgrade script program, performing version matching, and ensuring that the updated version number is higher than the current version and the subsequent upgrading process can be continuously executed;
s3, after the version matching is passed, starting to upgrade the main flash, writing an upgrade success identification in an upgrade identification file of the storage medium eMMC after the main flash is successfully upgraded, and restarting the BMC system;
s4, if the BMC system is successfully started, reading an upgrade identification file in the storage medium eMMC in a system background, if the upgrade identification is scanned, calibrating whether the upgraded BMC version number is consistent with the BMC version number to be upgraded, and if so, executing a process of upgrading the standby flash;
and S5, if the BMC system cannot be started normally from the main flash, automatically starting the BMC system of the original version from the standby flash, upgrading the firmware of the appointed version into the main flash after starting, and still being the firmware of the appointed version after starting the subsequent BMC systems.
2. The on-line BMC upgrading method according to claim 1, wherein the step S1 comprises the following steps:
s1.1, packaging BMC firmware to be upgraded, a version file and an upgrade script into a compressed package file;
s1.2, after network connection is established with the BMC system running currently, the file to be upgraded is transmitted to a storage medium eMMC mounted on the BMC system in a scp or tftp mode.
3. The on-line BMC upgrading method according to claim 1, wherein the step S2 comprises the following steps:
s2.1, decompressing the file to be upgraded after the transmission of the file to be upgraded is completed, and executing an upgrade script program in the file to be upgraded under the BMC system;
s2.2, version matching is carried out firstly in the upgrading process, namely, the current BMC version number and the BMC version number to be upgraded are read, the relation between the current BMC version number and the BMC version number to be upgraded is judged, and the follow-up process is continued to be executed under the condition that the BMC version number to be upgraded is higher than the current BMC version number, wherein the BMC version number to be upgraded is stored in a version file, and the BMC version number to be upgraded is the current latest version;
s2.3, if the version matching result does not meet the requirement, directly exiting the upgrading process.
4. The on-line BMC upgrading method according to claim 1, wherein the step S3 comprises the following steps:
s3.1, starting to upgrade the main flash after the version matching is passed, calibrating the integrity of BMC firmware before programming the main flash program, and erasing mtd files corresponding to the main flash after calibration;
s3.2, writing firmware into the mtd file, and calibrating after writing;
and S3.3, writing the identification which is successfully upgraded into the identification file in the storage medium eMMC after calibration is correct, and restarting the BMC system.
5. The on-line upgrading method for BMC according to claim 1, wherein the process of upgrading the standby flash in the step S4 comprises the following steps:
s4.1, executing a calibration process, namely reading a current BMC version number and a BMC version number to be upgraded, if the current BMC version number and the BMC version number to be upgraded are consistent, then considering that the main flash is successfully upgraded, automatically backing up the BMC firmware of a new version, and then continuously executing a process of upgrading the standby flash;
s4.2, backing up the BMC firmware to be upgraded, and copying the BMC firmware to a folder commanded by a version number;
s4.3, writing the standby flash into mtd equipment files corresponding to the standby flash when upgrading the standby flash, and indicating successful upgrading after writing is completed and calibration is qualified; if the current BMC version number is inconsistent with the BMC version number to be upgraded after calibration, the main flash is wrongly upgraded, and the standby flash is quitted.
6. A BMC online upgrade apparatus using the method of any of claims 1-5, comprising: the device comprises a flash memory, a storage medium eMMC and a processor, wherein the BMC online upgrading device is started through firmware in a flash connected with the BMC online upgrading device, and the firmware is programmed into the flash in the upgrading process; the storage medium eMMC is used for storing BMC firmware to be upgraded, a version file corresponding to the BMC firmware to be upgraded and an upgrade script program; an upgrade script is executed in the processor to complete the upgrade process.
CN202311301814.4A 2023-10-10 2023-10-10 BMC online upgrading method and device Pending CN117519760A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311301814.4A CN117519760A (en) 2023-10-10 2023-10-10 BMC online upgrading method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311301814.4A CN117519760A (en) 2023-10-10 2023-10-10 BMC online upgrading method and device

Publications (1)

Publication Number Publication Date
CN117519760A true CN117519760A (en) 2024-02-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

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